Provided is a novel apparatus capable of suitably manufacturing an organic substance from a syngas. An apparatus 1 for manufacturing an organic substance includes a syngas producing furnace (11), an organic substance synthesis unit (16), a moisture content raising unit (12), and a moisture content lowering unit (13). The syngas producing furnace (11) is configured to produce a syngas containing carbon monoxide by partly oxidizing a carbon source. The organic substance synthesis unit (16) is configured to produce an organic substance from the syngas. The moisture content raising unit (12) is disposed between the syngas producing furnace (11) and the organic substance synthesis unit (16). The moisture content raising unit (12) is configured to raise a moisture content of the syngas. The moisture content lowering unit (13) is disposed between the moisture content raising unit (12) and the organic substance synthesis unit (16). The moisture content lowering unit (13) is configured to lower the moisture content of the syngas.

Device for manufacturing organic substance and method for manufacturing organic substance

The invention belongs to the technical field of comprehensive coke-oven gas utilization, and particularly relates to a method of combined production of methanol and liquefied natural gas (LNG) in a coking plant. Coke-oven gas is subjected to temperature swing adsorption (TSA), desulphurization, vacuum pressure swing adsorption (VPSA), and other purifying treatment, and is subjected to cryogenic liquidation separation to obtain a liquefied natural gas (LNG) product. The main component of the non-liquefied part is (CO+H2), and is adopted as methanol synthesis gas used for producing methanol, wherein the insufficient carbon component based on the H2is supplied by continuous oxygen-rich gas production from chopped coke having a size of 7-24 mm by a normal-pressure gasifier. The method achieves direct utilization of CH4 that is one of the main components of the coke-oven gas, the (CO+H2) are directly used for methanol synthesis, and the insufficient carbon source is supplied by a normal-pressure gasifier adopting the chopped coke produced by the coking plant as a gas production raw material, and therefore intermolecular conversion and other main energy-consumption sections and high-investment devices are reduced, the whole process is simplified, the comprehensive energy consumption for producing the methanol and the liquefied natural gas (LNG) is low, the whole economic benefit of coking enterprises is increased, and the investment is saved.

Method of combined production of methanol and liquefied natural gas in coking plant

The invention belongs to the field of chemical industry, and particularly relates to a method for preparing methanol and coproducing natural gas from coke oven gas and coal gas. The method comprises the following steps: coke oven gas is subjected to desulfurization and impurity removal and mixed with treated coal gas, and is compressed to methanol main synthesis pressure and mixed with circulation gas of a methanol main synthesis system; the gas mixture enters the main synthesis system to synthesize methanol; the methanol generated by the main synthesis system is separated by a separator, subjected to flash evaporation in a flash evaporation tank and sent to a methanol rectification system; most of the gas after separation methanol is sent to a main synthesis circulation compressor to be circulated, and the rest gas is discharged out of the main methanol synthesis system as purge gas; the discharged purge gas and small synthesis system circulation gas are mixed to enter a small synthesis system; and the methanol is prepared by a purge gas technique. The irrational hydrogen-carbon ratio in the coke oven gas in the methanol and natural gas coproduction process is regulated by utilizing the coal gas provided by the coal gas making plant, thereby achieving the optimal hydrogen and carbon utilization; and the rich hydrogen and carbon contained in the methanol purged gas are reutilized and subjected to methanation to obtain the natural gas product.

Method for preparing methanol and coproducing natural gas from coke oven gas and coal gas

Stepped recovery and purification method and device of biodiesel methanol

The invention discloses a converter and/or blast furnace gas decarbonizing method which comprises the following steps: coarsely decarbonizing: utilizing a pressure swing adsorption mode to coarsely decarbonize converter and/or blast furnace gas and remove hydrogen phosphide; making the carbon dioxide volume fraction of the pressure swing absorption converter and/or blast furnace gas as 5.8 to 6.2%and the hydrogen phosphide content as 1 to 5 PPM; finely decarbonizing: utilizing an MDEA solution to decarbonize the converter and/or blast furnace gas in the S1 and making the carbon dioxide volumefraction of the converter and/or blast furnace gas as 0.0015 to 0.0019%. According to the converter and/or blast furnace gas decarbonizing method disclosed by the invention, two steps of work procedures of pressure swing adsorption decarbonization and MDEA solution fine decarbonization are creatively utilized for finishing decarbonizing the converter and/or blast furnace gas, breakthrough in converter and/or blast furnace gas decarbonization is achieved, and very important significance in promoting technological advance of China steel industry and economic development are achieved.

Converter and/or blast furnace gas decarbonizing method

The invention discloses a conversion waste water stripping tower waste water heat recovery method for use in the production of methanol by using coke oven gas, which mainly comprises that: waste water in a tower kettle in a conversion waste water stripping tower exchanges heat with waste water flowing into the stripping tower first and then exchange heat with feed of a methanol distillation pressure tower, desalted water required by the device and coarse methanol feed of a methanol pre-distillation tower; and after the heat is fully used, the waste water is cooled by circulating cooling waterand then discharged to a circulating water station or a desalted water station to be reused as raw water. If the waste water is discharged to the desalted water station as raw water, the temperature of waste water cooled by the circulating cooling water is controlled by the temperature of the raw water tank of the desalted water station.

Conversion waste water stripping tower waste water heat recovery method for use in production of methanol by using coke oven gas

Method for cogeneration of methanol, CNG (compressed natural gas) and LNG (liquefied natural gas) from coke-oven gas and converter gas

Method for utilizing converter gas adsorption regeneration heat during preparing methyl alcohol by coke-oven gas and converter gas

The invention relates to a methanol preparation technology in the chemical industry field, and concretely relates to a method for regenerating a converter gas variable temperature adsorbent for the production of methanol from a coke oven gas and a converter gas. The method comprises the following steps: introducing a methanol relief gas or a tail gas obtained after hydrogen extraction of the methanol relief gas into a regenerated gas heat exchanger in the variable temperature adsorbent regeneration process of the converter gas in order to realize the heat exchange heating of the methanol relief gas or the tail gas obtained after hydrogen extraction of the methanol relief gas and a regenerated gas, introducing the regenerated gas into a regenerated gas heater, heating, introducing the heated regenerated gas to a converter gas variable temperature adsorber for regenerating an adsorbent for regeneration, introducing a gas from the converter gas variable temperature adsorber into the regenerated gas heater for heat exchange cooling, introducing the obtained gas into a water cooler for cooling, and sending the cooled gas to a fuel tube network as a fuel. The method avoids wastewater generated through steam regeneration to realize sewage treatment reduction, and allows energy saving and consumption reduction to be realized by reducing regeneration heat consumption and reducing cooling water consumption via adopting the heat exchange of the regenerated gas and a regeneration gas.

Method for regenerating converter gas variable temperature adsorbent for production of methanol from coke oven gas and converter gas

The invention relates to the technical field of preparation of methanol, in particular to a method for preparing methanol from coke oven gas and recycling sewage discharged from a boiler, belonging to the technical field of chemical industry. The method for preparing methanol from coke oven gas and recycling sewage discharged from the boiler comprises the following steps: leading all sewage generated by the boiler in a system for preparing methanol from coke oven gas into a stripping tower for converting condensate wastewater; then, recycling the heat carried by the sewage generated by the boiler in the system for preparing methanol from coke oven gas; and recycling the sewage of which the heat is recycled together with the wastewater of the kettle of the stripping tower for converting condensate wastewater. The invention has the advantages that (1) each expander for sewage discharged from the waste boiler is cancelled, thereby achieving the purpose of saving investment; (2) the steamgenerated after the sewage discharged from the waste boiler is treated by flash evaporation by the stripping tower is used for converting, thereby achieving the purposes of saving energy and loweringconsumption; and (3) after the sewage discharged from the waste boiler is treated by flash evaporation, the sewage is recycled together with the wastewater of the stripping tower, thereby achieving the purposes of saving water and saving energy.

Wang Xiaoqin

Papers

Conversion waste water stripping tower waste water heat recovery method for use in production of methanol by using coke oven gas

Method for cogeneration of methanol, CNG (compressed natural gas) and LNG (liquefied natural gas) from coke-oven gas and converter gas

Method for utilizing converter gas adsorption regeneration heat during preparing methyl alcohol by coke-oven gas and converter gas

Method for regenerating converter gas variable temperature adsorbent for production of methanol from coke oven gas and converter gas

Method for preparing methanol from coke oven gas and recycling sewage discharged from boiler