Showing papers on "Spray tower published in 2008"
TL;DR: In this paper, an attempt has been made to theoretically predict the efficiency for a spray tower using single twin-fluid air-assist atomizer scrubbing wide size range (1-5μm) of particulate matter.
72 citations
TL;DR: In this paper, a high-pressure spray technique called particles from gas saturated solutions (PGSS) was used to extract green tea extracts, which contain antioxidants polyphenols, without degradation of the active ingredients.
Abstract: Natural extracts are widely used in groceries, in pharmaceutics and nutraceuticals. For foods these extracts are mainly used for flavoring or coloring the products. For pharmaceuticals and nutraceuticals active ingredients like antioxidants are of special interest. Traditionally these extracts are obtained by water or organic solvent extraction. Afterwards the liquid extracts are dried with classical spray drying techniques or freeze drying. In this work a new process for the gentle drying of natural extracts is presented. The process is based on a high-pressure spray technique called particles from gas saturated solutions (PGSS). The solution to be dried is dosed with a high-pressure pump to a static mixer, where compressed and preheated carbon dioxide is added. Afterwards this mixture is rapidly depressurized from high pressure via a nozzle into a spray tower, operated at ambient pressure—fine droplets are formed. By adjusting the pre-expansion conditions it is possible to evaporate the solvent in spray tower. The solvent can be withdrawn with the expanded carbon dioxide and finally a dry powder of the extract is obtained. Like the most supercritical fluid processes the drying is carried out at low temperature (30–60 °C) and in an inert, oxygen-free atmosphere. This makes the process very promising for sensitive substances. First investigations with this technique were made with green tea extracts, which contain antioxidants polyphenols. Dry and free flowing powders were obtained by the spray process without degradation of the active ingredients.
57 citations
TL;DR: In this article, the mass transfer parameters and H 2 S removal efficiency in a laboratory-made spray tower designed for deodorization were analyzed and the results demonstrated that as soon as the chlorination rate reached 0.5 g Cl 2 ǫ 2 L −1, more than 99% of the hydrogen sulphide was removed.
Abstract: The aim of this study was to characterise the mass transfer parameters and H 2 S removal efficiency in a laboratory-made spray tower designed for deodorisation. In order to study mass transfer, the volumic interfacial area ( a ) and the volumic mass transfer coefficient ( k L a ) were estimated. The influences of both superficial liquid and gas velocities were quantified ( U L from 4.1 × 10 −5 to 4.6 × 10 −4 m s −1 , U G from 9.4 × 10 −3 to 2.8 × 10 −2 m s −1 ). It could be shown that the superficial liquid velocity has a slight influence on the mass transfer parameters whereas the variation of the superficial gas velocity influences them much more. Then H 2 S removal efficiency was studied at pH 10 in the presence or not of an oxidant, sodium hypochlorite. The results demonstrated that as soon as the chlorination rate reached 0.5 g Cl 2 L −1 , more than 99% of the hydrogen sulphide is removed.
41 citations
TL;DR: In this article, a pilot plant counter-current spray-column wet scrubber has been conceived, designed and fabricated, and experimental investigations were conducted to quantify the performances of a countercurrent spraycolumn for scrubbing the particulates from the gaseous waste stream.
37 citations
TL;DR: In this article, an attempt has been made to design a new spray scrubber by a twin fluid air-assisted atomizer for the removal of SO2, which achieved a maximum of almost 99.99% efficiency for 1200 ppm at 3.354 × 10−3 m3/s gas flow rate and 33.34 × 10 −6 m 3/s spray liquid flow rate.
Abstract: Wet scrubbers are employed in process industries for scrubbing both gases and particulates. To achieve a high efficiency for scrubbers and meet pollution control standards, industries need a new type of scrubber. In this paper an attempt has been made to design a new spray scrubber by a twin fluid air-assisted atomizer for the removal of SO2. Experimental results for scrubbing of lean sulfur dioxide gas by a novel spray tower using a twin fluid air-assisted atomizer have been presented. The efficiency of the spray column was found to increase with increase in spray liquid flow rate (8.35 × 10−6−33.34 × 10−6 m3/s) and concentration of SO2 gas (400−1200 ppm). A maximum of almost 99.99% efficiency was observed for 1200 ppm at 3.354 × 10−3 m3/s gas flow rate and 33.34 × 10−6 m3/s spray liquid flow rate.
32 citations
TL;DR: In this article, the performance of a spray tower for SO 2 scrubbing using water and dilute NaOH deploying an energy efficient critical flow atomizer is reported, which is capable of generating finer drops at very high velocity with high degree of spray uniformity.
32 citations
TL;DR: In this article, the performance of a spray scrubber's performance in its two classical applications, i.e., gaseous pollutants scrubbing and aerosol removing processes has been simulated by developing two proper mathematical models.
23 citations
Patent•
28 May 2008
TL;DR: In this article, a closed multi-room fluidized bed sludge drying method is provided, which is a sludge-drying method having the advantages of simple equipment structure, convenient operation, strong sludge adaptability, high thermal efficiency, safety, continuity, stability, etc.
Abstract: A closed multi-room fluidized bed sludge drying method is provided, which is a sludge drying method having the advantages of simple equipment structure, convenient operation, strong sludge adaptability, high thermal efficiency, safety, continuity, stability, etc. After the mechanically dewatered sludge is mixed with the back-mixed sludge, the mixture is dried room by room in an inert particles multi-room fluidized bed dryer (3). The first room and the second room of the inert particles multi-room fluidized bed dryer (3) adopt inert particles (f) as heat storage medium. Gas from a cyclone separator (5) goes through a spray tower (7) and returns into an air heating unit (4) through a circulating fan (10). Part of dried sludge (e) at the lower part of the cyclone separator (5) enters the inert particles multi-room fluidized bed dryer (3) through the back-mixing in a mixer (2). Waste liquid from the bottom of the spray tower (7) enters a waste liquid circulating pool (8), with part of waste liquid circulating into the spray tower (7) and part into a sewage treatment system.
21 citations
Patent•
26 Nov 2008
TL;DR: In this article, a semi-dry garbage incineration flue gas purifying treatment method and a system device thereof are presented, where flue gases enters a spray tower from a waste heat boiler, activated carbon is injected into a horizontal inlet flue to remove dioxin and heavy metals in the fluegas; the FLUE gas is simultaneously carried out the reaction with a high specific surface area alkaline neutralizer, most of the harmful substances in the FLU gas are purified by generating chemical reactions with the alkaline Neutralizer.
Abstract: The invention provides a semi-dry garbage incineration flue gas purifying treatment method and a system device thereof, flue gas enters a spray tower from a waste heat boiler, activated carbon is injected into a horizontal inlet flue to remove dioxin and heavy metals in the flue gas; the flue gas is simultaneously carried out the reaction with a high specific surface area alkaline neutralizer, most of the harmful substances in the flue gas are purified by generating chemical reactions with the alkaline neutralizer; when the flue gas passes through a filter layer which is formed by granule materials in a bag dust collector, gaseous pollutants can still be reacted with non-reacted lime and activated carbon in the filter layer to be further purified. The system device can lead the flue gas and the high specific surface area lime emulsion to achieve the best contact area, thus ensuring the best flue gas retention time, achieving the full heat transfer and the chemical and heat transfer process; furthermore, the spray is even, the anti-blockage and the anti-corrosion performances are better; a lime emulsion preparation device can automatically control and prepare the concentration and the using amount of the emulsion to be participated in the reaction according the content of wastes in the ingredients of the flue gas and the temperature of the flue gas; the usage and the regulation of the neutralizer are flexible. The system device further has the advantages of low investment cost, strong load adaptability and no waste water discharge, etc.
13 citations
Patent•
05 Nov 2008
TL;DR: In this article, the authors proposed a method for generating ammonium bicarbonate by using ammonia water to absorb carbon dioxide in flue gas, which has the advantages of greatly reducing the content of ammonia in the flue gases from which CO2 is removed, secondary pollution as well as operation cost.
Abstract: The invention relates to a method for generating ammonium bicarbonate by using ammonia water to absorb carbon dioxide in flue gas. The method divides a spray tower into two stages. Flue gas in the first stage of the spray tower contacts 6 to 18 percent of ammonia water in a converse manner to generate ammonium carbamate or ammonium carbamate and ammonium carbonate; in the second stage of the spray tower, the flue gas contacts absorption liquid coming from the bottom of the first stage of the spray tower and containing ammonium carbamate and ammonium carbonate in a converse manner to further generate ammonium bicarbonate. At last, the gas is discharged from the top of the tower. The method has the advantages of greatly reducing the content of ammonia in the flue gas from which CO2 is removed, secondary pollution as well as operation cost.
9 citations
Patent•
16 Apr 2008
TL;DR: In this article, a cylindrical spraying tower for eliminating sulfur dioxide in the flue gas and a method for eliminating the sulfur dioxide with the spraying tower thereof was proposed, where a spraying tower was provided with two vertical clapboards and provided with a defroster at the outlet, the clapboard is provided with an opening thereby dividing the absorbing area to three areas and dividing the serous fluid tank into two sections.
Abstract: The present invention relates to a cylindrical spraying tower for eliminating the sulfur dioxide in the flue gas and a method for eliminating the sulfur dioxide in the flue gas with the spraying tower thereof, wherein the spraying tower is provided with two vertical clapboards and is provided with a defroster at the outlet, the clapboard is provided with an opening thereby dividing the absorbing area to three areas and dividing the serous fluid tank into two sections. The flue gas contacts with the spraying serous fluid concurrently and then countercurrent in the area of the absorbing area and is discharged through the defroster. The excellent desulfurizing effect is realized and the method is especially suitable for the wet limestone gypsum flue gas desulfurization technique of the large-scale thermal power plant with the power more than 300MW.
Patent•
20 Aug 2008
TL;DR: In this article, the authors proposed a spray tower for purification of multiple exhaust gas, which comprises vent ports distributed from top to bottom in the tower body, a plurality of layers of spray layer, an inlet chamber and a liquid tank.
Abstract: The utility model discloses a spray tower used for purification of multiple exhaust gas, which comprises vent ports distributed from top to bottom in the tower body, a plurality of layers of spray layer, an inlet chamber and a liquid tank. A water pump is connected with a spray pipe of each layer of spray layer; the air inlet of the inlet chamber penetrates deeply into the tower body and presents an inclination angle with the tower body; the spray layer is formed by a filler contacting section and an atomization section, and the height ratio of the filler contacting section and the atomization section is less than 1. A preference technical proposal of the spray tower of the utility model is that: the inner end of the air inlet and the tower body present an angle of 45 degrees; the height ratio of the filler contacting section and the atomization section is 0.95 to 1; a nozzle on the spray pipe adopts an atomization nozzle; the atomization nozzle adopts an atomization device without jam; wind speed of the empty tower of the spray tower is 0.78 to 0.8 m per second. The spray tower of the utility model has the advantages of non-jam nozzle, symmetrical gas distribution, reasonable ratio of the inner height of the spray layer and high purification efficiency.
16 Jul 2008-Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering
TL;DR: Experation revealed that SO2 removal was enhanced due to presence of particles (fly-ash) and almost 100% removal efficiency was achieved in water scrubbing and predicted data fitted excellently well with experimental values.
Abstract: The performance of a spray tower using an energy efficient two-phase critical flow atomizer on the scrubbing of particulate-laden SO(2) using water and dilute NaOH is reported in this article. Experimentation revealed that SO(2) removal was enhanced due to presence of particles (fly-ash) and almost 100% removal efficiency was achieved in water scrubbing. The removal efficiency is elucidated in reference to atomizing air pressure, droplet diameter and droplet velocity besides other pertinent variables of the system studied. The presence of fly-ash particles improved the removal efficiency to about 20% within the range of variables studied. Empirical and semi-empirical correlations were developed for predicting the removal efficiency in water and dilute NaOH respectively. Predicted data fitted excellently well with experimental values. The performance of the spray tower is compared with the performances of existing systems and very encouraging results are obtained.
Patent•
23 Apr 2008
TL;DR: In this article, a design plan for wetting technology and system used in test platforms of large power fuel cells, which puts forward a heat exchange system of two stages or multiple stages to transfer heat generated by fuel cells to reactant gas entering into the fuel cell, in order to increase the gas/liquid medium-transfer ability of the wet system, a high efficient filled converse flow spray tower is taken as the main wetting device and temperature of a spray medium is controlled accurately to guarantee temperature of wetting and saturation of vapor, which can control the relative humidity of the react
Abstract: This invention puts forward a design plan for wetting technology and system used in test platforms of large power fuel cells, which puts forward a heat-exchange system of two stages or multiple stages to transfer heat generated by fuel cells to reactant gas entering into the fuel cell, in order to increase the gas/liquid medium-transfer ability of the wet system, a high efficient filled converse flow spray tower is taken as a main wetting device and temperature of a spray medium is controlled accurately to guarantee temperature of wetting and saturation of vapor, which can control the relative humidity of the reactant gas entering into a fuel cell stack within +-2% and relative temperature in +-0.1deg.C by controlling the temperature of an overheater with an outer heater and efficient heat-transmitting filling component accurately, and a foam-removing system with accurate temperature control is matched to avoid liquid from entering into the back system.
Patent•
09 May 2008
TL;DR: In this paper, a purification device for flue gases is described, consisting of a primary purification tower, a washing tower, and an adsorption tower which are connected in sequence, and a plurality of washing nozzles are placed in a central part of an inner space of the spray tower.
Abstract: The invention relates to a purification device for flue gases a purification device for flue gases comprising a primary purification tower, a washing tower and an adsorption tower which are connected in sequence. The washing tower is a spray tower and the adsorption tower includes a plurality of standard flashboards inserted into its flue gases duct. A plurality of washing nozzles are placed in a central part of an inner space of the spray tower, a plurality of sieve plates are placed in a lower part of an inner space of the spray tower and a gas-liquid segregating unit is placed in an upper part of an inner space of the spray tower. The device is simple in technique, convenient in operation and can completely remove the harmful ingredients from the flue gases, and thereby reducing the harm of flue gases upon human bodies and environment.
Patent•
20 Aug 2008
TL;DR: In this article, a dual-phase rectification flue gas desulfurization technology is described, which comprises a plurality of steps that an absorption tower is arranged, the flue gases is injected, the limestone slurry is pumped in, and the reaction product is collected.
Abstract: The invention discloses a dual-phase rectification flue gas desulfurization technology, which comprises a plurality of steps that (1) an absorption tower is arranged, (2) the flue gas is injected, (3) the limestone slurry is pumped in, and (4) the reaction product is collected. The dual-phase rectification flue gas desulfurization technology is characterized in that (1) the nonuniformity of flow field inside the spray tower is utilized, (2) the even rectification of liquidoid and gas phase is not processed on account of the design of rectifying plate and spray layer intentionally, (3) the resistance of flue gas is decreased and the velocity of flow of flue gas is uninfluenced, and (4) the liquidoid and the gas phase are kept turbulent state consistently because of the nonuniformity of liquidoid and gas phase. The dual-phase rectification flue gas desulfurization technology has the advantages of fierce collision, intense reaction, enough absorption, good performance of desulfurization, high efficiency, fast reaction rate, good performance of counter-current reaction, optimization of flow field, low system pressure drop, energy-saving, low device cost and maintenance cost, and direct maintenance and shift of inner parts without building temporary maintenance platform in the process of maintenance of absorption tower inner parts.
Patent•
20 Feb 2008
TL;DR: In this article, a gas purifying and recycling device with a converter and a wet-type cloth bag comprising a steaming gas flue, an evaporative cooler or a saturated spray tower, a wet type cloth bag dust cleaner, a gas water seal, a valve, an emission chimney and an auto-control device is presented.
Abstract: The utility model relates to a gas purifying and recycling device with a converter and a wet-type cloth bag comprising a steaming gas flue, an evaporative cooler or a saturated spray tower, a wet-type cloth bag dust cleaner, a gas water seal, a valve, an emission chimney and an auto-control device. The evaporative cooler or a saturated spray tower is connected with the steaming gas flue through a dry sealed flexible connecting equipment replacing the water sealed connecting equipment, and the evaporative cooler or a saturated spray tower is connected with the wet-type cloth bag dust cleaner through a pipe, then the back of the wet-type cloth bag dust cleaner is connected with a gas pipe, further the gas pipe is provided with a venturi flow counter, a gas fan, a valve, a three-way diverter valve, a emission chimney and a water sealed valve. The utility model has the advantages that the gas purifying efficiency is high, the operation resistance and energy consumption are low, the gas recycling quantity is large, the pipe is not easily blocked, the strict environmental protection requirement is achieved, the purpose of recycling the gas and the steel-smelting of converter negative-energy are achieved.
Patent•
01 Oct 2008
TL;DR: In this paper, a gas accumulation ring of a spray tower is proposed to lead the flue gas to oversweep the spray dense area, reducing the evaporation rate and increasing the desulfurization efficiency.
Abstract: In order to lead flue gas to get together towards a spray dense-area and solve the technical problem of the flue gas in a stream guidance tower, the utility model has the technical proposal that a gas accumulation ring of a spray tower used for flue gas processing and the spray tower including the gas accumulation ring are provided. The gas accumulation ring comprises a first board; one end of the first board is connected to the side wall of the spray tower, and the first board slantways and upwards extends from the side wall of the spray tower towards the center of the spray tower. The gas accumulation ring and the spray tower can realize the technical effects that the flue gas is guided to the middle part of the tower through the gas accumulation ring to lead the flue gas to oversweep the spray dense-area, the flue gas escape is reduced, and the desulfurization efficiency is increased.
Patent•
27 Aug 2008
TL;DR: In this paper, a method of extracting sulfur from sulfide-containing waste gas, which can obtain sulfur monomers and has steps of spraying sodium hypochlorite by high pressure in a spray tower, spraying the sulfide containing waste gas accessed into the spray tower by the atomized sodium hyphelite ejected by gas pressure to enable sulfide gas in the waste gas to react to the vaporous sodium hyphelorite, mixture gas formed after spraying entering a packed tower, then residual sulfide gases in the mixture gas reacting to the sodium hyphenlorite sprayed by a
Abstract: The invention discloses a method of extracting sulfur from sulfide-containing waste gas, which can obtain sulfur monomers and has steps of spraying sodium hypochlorite by high pressure in a spray tower, spraying the sulfide-containing waste gas accessed into the spray tower by the atomized sodium hypochlorite ejected by gas pressure to enable sulfide gas in the waste gas to react to the vaporous sodium hypochlorite, mixture gas formed after spraying entering a packed tower, then residual sulfide gas in the mixture gas reacting to the sodium hypochlorite sprayed by a sprayer arranged inside the packed tower, after twice reactions, forming mixed liquor of sodium chloride, water and sulfur to flow back to a sulfur extractor to be extracted and then obtaining the sulfur monomers (sulfur). The invention sends sodium chloride aqueous solution formed after sulfur extracting by the sulfur extractor into a sodium hypochlorite generator to generate the sodium hypochlorite which is recycled, thereby achieving discharging without pollutant, and not only is the waste gas processed, but also contradiction between supply and demand of sulfur in urgent need is relieved, thereby achieving considerable economic benefits and changing waste into treasure.
Patent•
31 Dec 2008
TL;DR: In this article, a spray tower is used to disassemble the smoke gas generated when setting on fire for garbage, and a spray head is arranged at the bracket center of the spray decollator and can rotate.
Abstract: The utility model discloses a spray tower which disposes the smoke gas generated when setting on fire for garbage. The upper end of a shell body is connected with a top dust hood, and the top dust hood is provided with an air inlet; the lower end of the shell body is connected with a slag tap hopper; the upper end of the shell body is also provided with a spray decollator which is covered by the top dust hood; the center of the spray decollator is provided with a spray head used for spraying absorption liquid; the spray head is connected with an electric motor and is driven to rotate by the electric motor; smoke gas guiding vanes are evenly distributed around the spray head. The spray head is arranged at the bracket center of the spray decollator and can rotate, and the smoke gas guiding vanes are fixed on the bracket along the circumference and can not rotate. The spray tower can accelerate minuteness fogdrop to be evenly distributed, but can not cause scale formation in the tower, thereby facilitating the maintenance of the spray tower. The smoke gas of garbage which is set on fire after being disposed by the spray tower is assisted by other disposing measures, the pollution problem of the hazardous substances (such as HCl, HF, Sox, etc.), heavy metal, dioxin, etc. in the smoke gas is satisfactorily solved.
01 Jan 2008
TL;DR: In this paper, a numerical model of the absorption process inner a spray tower is proposed for design optimization of a limestone-gypsum wet flue gas desulphurization (FGD) system.
Abstract: Theoretical model of absorption process inner a spray tower is important for design optimization of limestone-gypsum wet flue gas desulphurization(FGD) systemThe variations of materials’ concentration in the absorption zone are simplified to be one dimensionalThe computation space is discretized into control volumesBased on the discretization,and employing control volume equations of material and chemical reaction equilibrium,a numerical calculation model is establishedAn example computation of the spray tower of a domestic 200 MW class unit’s wet FGD system is introducedThe results show that this numerical model is helpful for design optimization and system simulation
Patent•
29 Oct 2008
TL;DR: In this paper, a flue gas desulphurization spray tower is characterized in which the spray tower comprises a tower body, at least two glue gas inlets which are arranged symmetrically, concentrically sweeping the spray compact district in the center of the tower, and enabling the flow field in the tower to become more uniform.
Abstract: The utility model provides a flue gas desulphurization spray tower, which aims at improving the prior structure of spray towers with one side inlets, enabling the prior spray tower to be constructed and operated with high efficiency and low cost. The flue gas desulphurization spray tower is characterized in that the spray tower comprises a tower body, at least two flue gas inlets arranged on the tower body and at least two outlets arranged above at least two flue gas inlets, wherein at least two flue gas inlets are symmetrically arranged to enable the flue gas to oppositely flow and inject into the tower from the two flue gas inlets. The flue gas desulphurization spray tower can realize the technical effects of enabling the flue gas to oppositely flow and inject from at least two glue gas inlets which are arranged symmetrically, concentrically sweeping the spray compact district in the center of the spray tower, and increasing the carbon dioxide catching efficiency of absorption liquid in flue gas and enabling the flow field in the tower to become more uniform.
Patent•
03 Dec 2008
TL;DR: A benzene recovery unit is a device for recovering benzene in mixture gas of benzene steam and nitrogen during producing sulfolane as discussed by the authors, which is mainly designed for solving the problem of low coefficient of recovery.
Abstract: A benzene recovery unit relates to a device for recovering benzene in mixture gas of benzene steam and nitrogen during producing sulfolane, which is mainly designed for solving the problem of low coefficient of recovery of benzene exhausted during producing sulfolane. The benzene recovery unit comprises a benzene cooler, wherein a heat exchange tube is arranged in the benzene cooler, and is connected with an upper tube plate and a lower tube plate, a coolant inlet and a coolant outlet arranged on a shell layer are connected with a refrigerating machine, a water outlet arranged on the bottom of the benzene cooler is connected with a circulating pump through a pipeline, a spray tower is connected with the upper portion of the benzene cooler, packing is filled in the spray tower, a benzene steam and nitrogen mixed gas outlet is arranged on the lower portion of the spray tower, a spray head is arranged on the inner upper portion of the spray tower, and is connected with the circulating pump through a pipeline, an incondensable gas outlet is arranged on the top of the spray tower, a liquid benzene outlet is arranged on the benzene cooler to connect with a benzene storage tank through a pipeline, and a water exhaust port and a benzene outlet arranged on the lower portion of the benzene storage tank are respectively connected with the circulating pump and a production unit through pipelines. The benzene recovery unit has the advantage of over 95% benzene coefficient of recovery.
01 Jan 2008
TL;DR: In this article, the continuous phase (gas) is modelled in the Eulerian framework while the discrete phase (liquid droplets) in the Lagrangian frame of reference.
Abstract: Wet Flue Gas Desulphurisation (FGD) technology is the most frequently used scrubbing process for sulphur dioxide (SO2) reduction from coal-fired utility boilers. Wet limestone FGD-plants using Open Spray Tower (OST) technology are the most commonly used. CFD has been used to investigate the gas-liquid fluid dynamics inside a counter-current OST and the heat transfer between the phases. The continuous phase (gas) is modelled in the Eulerian framework while the discrete phase (liquid droplets) in the Lagrangian frame of reference. Simulation results show good agreement with measurements on a pilot plant flue gas cleaning unit. The commercial code Fluent 6.3.26, completed with the necessary subroutines for liquid phase properties and slurry wall interaction, has been used for the calculations.
Journal Article•
TL;DR: In this article, the design and construction of an acid gas removal from a solid waste incinerator was developed, which consists of a quench and a scrubber on a spray tower, with a double function: to cool the gases to the absorption temperature at the scrubber, as well as to absorb acid gases (HCl, HF and SO2) and to eliminate the fly ash partially.
Abstract: Owing to its various deleterious effects, abatement of pollutants gases from point sources assumes significant importance over the years. In order to decrease their emissions, the design and construction of an acid gas removal from a solid waste incinerator was developed. The incinerator is located in the San Juan Industrial Park, Argentina. This system is formed by a quench and a scrubber, which consists on a spray tower. The quench has a double function: to cool the gases to the absorption temperature at the scrubber, as well as to absorb acid gases (as: HCl, HF and SO2) and to eliminate the fly ash partially. The gaseous flow enters to the spray tower by the bottom, while an alkali solution is sprayed from the upper section. The height of the column was calculated in order to assure an efficient elimination of the acid gas pollutants, to fulfill regulatory schemes. The alkali solution used is a NaHCO3 solution, because the sodium salts present bigger solubility, reactivity and performance; the products of the reactions also present high solubility facilitating their later treatment. The monitoring carried out by the Environmental Sub Secretary of the Provincial Government; indicate an efficient operation of the designed system.