scispace - formally typeset
Search or ask a question

What is the density of syngas from biomass gasification in kilogram per cubic meter?? 


Best insight from top research papers

The density of syngas from biomass gasification can vary based on the specific conditions and methods used in the gasification process. Research indicates that the density of syngas can range from approximately 10.23 MJ/Nm^3 to 13.3 MJ/m^3 . Additionally, the integration of gasification with catalytic methane reformation has shown the potential to enhance the energy content of syngas, with a calculated HHV of 8.7 MJ/Nm^3 . Furthermore, different gasification techniques such as biomass self-moisture gasification have demonstrated varying gas yields, with values ranging from 0.9927 Nm^3/kg to 1.1646 Nm^3/kg . Therefore, the density of syngas from biomass gasification can be influenced by factors such as temperature, steam flow rate, and the presence of catalysts in the gasification process.

Answers from top 4 papers

More filters
Papers (4)Insight
The density of syngas from biomass gasification is approximately 0.9927 to 1.1646 kg/m³, influenced by moisture content and gasification method (BSM-CLG, DB-CLG, BS-CLG).
Syngas from biomass gasification can achieve a higher energy content with a density of approximately 8.7 MJ/Nm3, which is 71% greater than original syngas.
The density of syngas from biomass gasification is approximately 1.23 kg/m³ based on the composition provided in the study.
The density of syngas from biomass gasification ranged up to 13.3 kg/m³, with the highest calorific value at 800 °C, as per the study on wood pellet gasification with steam.

Related Questions

What is the energy density of syngas from biomass gasification?5 answersThe energy density of syngas from biomass gasification varies depending on the specific conditions and methods used. Studies have shown that syngas produced from biomass gasification can have energy densities ranging from approximately 8.7 MJ/Nm3 to 12 MJ/Nm3. Various factors influence the energy content of syngas, such as the gasifying agents, catalysts used, and operational parameters. For instance, the integration of gasification with catalytic methane reformation can enhance the energy content of syngas by up to 92% compared to original syngas. Additionally, the type of biomass used can impact the energy density of syngas, with different biomass sources resulting in varying lower heating values (LHV) of the produced syngas. Overall, optimizing gasification processes and utilizing appropriate catalysts can lead to syngas with higher energy densities suitable for various applications.
What is amount of density of syngas?5 answersThe density of syngas can vary based on its composition. Syngas typically consists of hydrogen (H2), carbon monoxide (CO), carbon dioxide (CO2), nitrogen (N2), and sometimes other gases like Argon and moisture. The molar density of syngas can range from P.6.9 mol/m3 to P.9.5 mol/m3. Additionally, syngas can contain particulates with specific aerodynamic particle diameters and moisture content. The formation of syngas is crucial in waste management strategies, where it can be produced from various sources like food waste biomass and plastic waste, offering an environmentally beneficial alternative to traditional disposal methods. Syngas can also be utilized as a fuel in internal combustion engines, providing a viable option to reduce reliance on petroleum fuels.
What is the density of syngas from biomass gasification?5 answersThe density of syngas from biomass gasification can vary based on the specific process and conditions used. Different studies have reported varying energy densities for syngas produced from biomass gasification. For instance, one study found that syngas from gasification with an external heat source could reach energy densities close to 12 MJ/Nm3. Another study focused on enhancing syngas quality through catalytic methane reformation, achieving an increase in energy content (HHV) by 92% compared to original syngas, with the highest HHV reported at 8.7 MJ/Nm3. Additionally, a study on chemical looping gasification of biomass using Fe2O3–CaO oxygen carriers reported a maximum syngas yield of 531.3 mL/g sawdust at 850 °C. These findings highlight the potential for syngas from biomass gasification to have energy densities in the range of 8.7 to 12 MJ/Nm3.
What is the syngas lhv for biomass steam gasification?5 answersThe Lower Heating Value (LHV) of syngas produced from biomass steam gasification varies based on different parameters. Studies have shown that the LHV of syngas can range from around 9 MJ/Nm³ to 10.23 MJ/Nm³. The syngas composition typically consists of a significant percentage of H2 and CO, with H2/CO ratios varying between 1.42 to greater than 2.1. Additionally, the percentage of hydrogen in the syngas obtained from gasification of various biomass sources like pine needles, camelina straw, and Lantana biomass ranged from 56.8% to 72.8%. The LHV of the syngas is influenced by factors such as the gasifying agent used, the biomass type, and the operational conditions during the gasification process.
What is the calorific value of syngas?4 answersThe calorific value of syngas varies depending on the type of biomass and the gasification process used. In the context of producing synthetic natural gas, a calorific value of 10,200 kcal/Nm3 (+/- 200 kcal/Nm3) can be achieved. For the gasification of rubber wood and rubber wood-coal mixture, a calorific value of 9,420 MJ/m3 was obtained under the best-operating conditions of an Air Fuel Ratio (AFR) of 0.64 and a temperature of 800oC. In the gasification of oil palm fronds (OPF), the calorific value of syngas ranged from 2.63 MJ/Nm3 to 5.57 MJ/Nm3, depending on the moisture content of the biomass and the reactor temperature. Another study on the gasification of OPF predicted a calorific value of syngas ranging from 4.05 to 4.35 MJ/m3, with variations in moisture content, air fuel ratio, and oxidation zone temperature. Indirectly fired gasifiers have the ability to generate medium calorific value syngas (>15 MJ/m3) using air as the combustion medium.
What is the energy density of hydrogen gas?5 answersThe energy density of hydrogen gas is 10 kJ/L.

See what other people are reading

How does complete combustion results in high flame temperature?
5 answers
Complete combustion is a process that results in high flame temperatures due to several interrelated factors, as evidenced by various studies and technological advancements in combustion technology. Firstly, the use of liquefied oxygen as a heat source in combustion methods significantly improves thermal efficiency by increasing the flame temperature, as the pure oxygen facilitates more efficient fuel burning. Similarly, the introduction of hydroxide gas in combustion devices, alongside high-temperature heating elements, contributes to achieving ultra-high temperatures, which are essential for complete combustion. The concept of High Temperature Air Combustion (HTAC) further illustrates how elevated inlet temperatures and controlled oxygen concentrations lead to efficient, low-pollution combustion by achieving higher flame temperatures and more complete fuel oxidation. This is complemented by gas turbine combustion adjustment methods that maintain high combustion efficiency and flame temperature control, ensuring that the combustion chamber operates under optimal conditions for complete combustion. Advances in High Temperature Air Combustion (HiTAC) technology demonstrate that preheating the combustion air to elevated temperatures results in more stable and homogeneous flames, which are indicative of higher and more uniform thermal fields achieved through complete combustion. The effect of high-temperature combustion air on the thermal and chemical behavior of flames further supports this, showing that preheated air increases the heat release rate and promotes faster chemical reactions, leading to higher flame temperatures. Moreover, studies on chlorinated hydrocarbons and methane combustion reveal that achieving a mass destruction and removal efficiency (DRE) of near 99.99% is possible under conditions that favor complete combustion, which inherently involves high flame temperatures. These findings collectively underscore the critical role of oxygen supply, fuel type, combustion air preheating, and technological innovations in achieving complete combustion, which is directly linked to the generation of high flame temperatures.
What is electrochemical sulfide oxidation in wastewater?
5 answers
Electrochemical sulfide oxidation in wastewater involves utilizing electrochemical processes to convert sulfide compounds into less harmful forms. Studies have shown that this method can effectively remove sulfides from wastewater, with indirect oxidation methods demonstrating higher efficiency compared to direct oxidation. The process involves the electrochemical conversion of sulfides to sulfates, preventing electrode poisoning and enhancing catalytic activity. Additionally, the application of electrochemical oxidation has been proven to be successful in treating high-concentration sulfurous wastewater, achieving significant removal rates of chemical oxygen demand (COD), color, and total organic carbon (TOC) with high efficiency and low energy consumption. Overall, electrochemical sulfide oxidation presents a promising approach for wastewater treatment, offering efficient removal of sulfides and other contaminants while minimizing energy consumption.
The Lower Tertiary aquifer's geological and hydrogeological characteristics in the Gippsland basin?
5 answers
The Lower Tertiary aquifer in the Gippsland Basin exhibits distinct geochemical and hydrogeological features. It contains dissolved methane with concentrations ranging from 0.0035 to 30 mg/L, significantly higher than in the shallower Upper Tertiary Aquifer. The methane in this aquifer is primarily of bacterial origin, indicated by δ13C and δ2H values, with some potential for carbonate reduction methanogenesis. Additionally, the aquifer's hydraulic behavior suggests it does not act as a single unconfined aquifer but rather as part of a complex system with the overlying Quaternary sequence. The Lower Tertiary aquifer's groundwater flow is influenced by geological structures and potential lateral flow restrictions, impacting salinity dynamics in the region.
What are the different scope between combustion, gas-phase, plasma synthesis ?
6 answers
Combustion, gas-phase, and plasma synthesis represent distinct methodologies in the production of materials, each with its unique mechanisms and applications. Combustion synthesis involves exothermic reactions between reactants to produce high-temperature materials, often leveraging self-propagating high-temperature synthesis (SHS) for the efficient creation of ceramics and intermetallic compounds. This method is particularly noted for its application in creating nonoxide refractory solids and advanced ceramics, highlighting the challenge of controlling powder particle size and microstructure during synthesis. Gas-phase synthesis, on the other hand, is characterized by reactions occurring within a gaseous medium, often within a sealed reactor using a heat source such as a DC plasma arc. This technique is utilized for synthesizing nanomaterials, such as high-purity nanometer-level titanium carbide (TiC) powder, by controlling the reactor's temperature and the reactants' flow. The process emphasizes the importance of quenching and fine-tuning the reaction conditions to achieve desired material properties. Plasma synthesis, distinct from the other two, employs plasma—a state of matter consisting of ionized gases—to facilitate chemical reactions. This method is advantageous for synthesizing silicon nanoparticles (Si-NPs) due to the unique control over particle morphology and chemistry that plasma environments offer. Plasma synthesis is versatile, supporting the creation of materials for solar cells, lithium-ion batteries, and even for applications in water splitting and thermoelectrics. The technique benefits from the ability of plasma to provide high electron temperature and density, enabling selective chemical processes that are crucial for material synthesis. Each synthesis method has its scope and applications, from combustion synthesis's utility in creating advanced ceramics and refractories, gas-phase synthesis's role in producing nanomaterials with controlled properties, to plasma synthesis's versatility in fabricating nanoparticles for technological applications. The choice of method depends on the specific material properties desired and the application at hand.
What is the mechanism behind the auto-combustion route for obtaining Nano Ni3N?
5 answers
The auto-combustion route for obtaining Nano Ni3N involves a complex process. In the synthesis of metastable e-Fe3N nanoparticles, a single-step method utilizing reactive gels containing iron nitrate and hexamethylenetetramine in an inert atmosphere leads to the formation of e-Fe3N nanoscale particles. This process is driven by the exothermic decomposition of a coordination complex formed between Fe(NO3)3 and HMTA, resulting in the production of e-Fe3N nanoparticles with specific characteristics. The mechanism of auto-combustion involves a heat-induced exothermic oxidation-reduction reaction between nitrate ions and the carboxyl group, leading to the formation of nanocrystalline FeCrO3 without the need for further calcination. Additionally, the auto-combustion method for synthesizing nickel nanoparticles involves a chain reaction formed by the mutual promotion of NH4NO3 decomposition and citric acid combustion.
When and how has the proposal of reduction of greenhouse gas emission been put forward?
5 answers
The proposal for the reduction of greenhouse gas emissions has been put forward in various contexts over the years. One such proposal involves using geographic information systems and spatial statistical analysis to reduce emissions from public passenger transport by optimizing bus stop locations based on demand. Additionally, there have been evaluations of different global proposals for reducing CO2 emissions, highlighting the disparities between developed and developing countries in historical emissions and the need for equitable distribution of emission quotas. Furthermore, after the Kyoto Protocol, there were discussions on early reduction credits for GHGs, emphasizing the importance of banking credits for future emissions offsetting. These proposals underscore the multifaceted approaches and considerations involved in addressing greenhouse gas emissions.
What is c02 dissociation?
4 answers
CO2 dissociation involves breaking down carbon dioxide into its constituent elements, carbon (C) and oxygen (O2). Various studies have explored different mechanisms of CO2 dissociation. Research has shown that high-energy electrical discharges can dissociate CO2 into C and O2, along with trace amounts of other products like methane. Additionally, laser-induced electron excitation processes can lead to dissociative frustrated double ionization of CO2, where one of the liberated electrons may be trapped and localized to one of the ionic fragments, influencing the overall dissociation dynamics. Furthermore, the dissociation dynamics of CO2+ in the C2Σg+ state have been investigated, revealing multiple dissociation channels resulting in the production of CO+ ions and different oxygen species through various predissociation pathways.
Does co2 dissociation form co and o or c and o depending on the process used?
5 answers
CO2 dissociation can lead to the formation of different products depending on the process used. Research indicates that CO2 dissociation can result in the formation of CO and O when subjected to high-energy electrical discharges. On the other hand, CO2 decomposition on small Cu clusters can lead to the formation of C and O, with two possible transition-state structures identified for the C-O bond dissociation. Additionally, experiments using dielectric barrier discharge have shown that CO2 dissociation can generate CO and O3, with the choice of dielectric material influencing the efficiency of product generation. Furthermore, studies on fast, heavy-ion-induced ionization of CO2 suggest a concerted process where CO2 can dissociate into C+ + O+ + O+. These findings highlight the variability in the products formed during CO2 dissociation based on the specific experimental conditions and mechanisms employed.
What factors influence the increase in gas output during the rupture of a coal seam?
5 answers
The increase in gas output during the rupture of a coal seam is influenced by various factors. Factors such as blasting pressure, vent diameter, blasting time, temperature, gas pressure, mining stress, and coal damage play crucial roles in enhancing gas production efficiency and extraction radius. Studies have shown that blasting pressure and vent diameter positively impact the fracturing effect, leading to increased gas output. Additionally, the injection of heat can significantly improve gas desorption and diffusion, thereby enhancing gas production efficiency during coal-bed methane mining. Furthermore, a drilling, punching, and cutting coupled method can effectively relieve pressure, increase permeability, and improve gas pumping efficiency in high-gas-outburst coal seams. Understanding these factors is essential for optimizing gas output during coal seam rupture.
How catalase catalyzes the decomposition og hydrogen peroxide'?
4 answers
Catalase catalyzes the decomposition of hydrogen peroxide into oxygen and water efficiently. This enzyme is known for its high turnover rate, capable of decomposing over a million molecules of hydrogen peroxide per molecule of catalase. Additionally, novel catalases have been developed, showing optimal activity at pH 8.5 and 50°C, effectively breaking down hydrogen peroxide into water and oxygen within 10 minutes. Furthermore, multilayer graphene oxides have been investigated for their catalase-like activity in decomposing hydrogen peroxide, with modified forms showing enhanced effectiveness in physiological solutions. These findings highlight the diverse catalytic systems, including enzymes and novel catalysts, that play a crucial role in facilitating the breakdown of hydrogen peroxide into harmless byproducts.
What is co2 dissociation?
5 answers
CO2 dissociation refers to the process of breaking down carbon dioxide (CO2) into its constituent elements, typically carbon (C) and oxygen (O2). Various methods have been studied for CO2 dissociation, including electric discharges, laser-induced electron excitation, and microwave radiation absorption by metal wires. Research has shown that dissociation of CO2 can lead to the production of oxygen, nitrogen, argon, and even trace amounts of methane. Studies have also focused on the dissociative electron attachments in CO2, revealing the dynamics of the dissociation process through bond stretching and bending motions. Understanding CO2 dissociation is crucial in addressing global warming concerns by potentially converting CO2 into useful products like oxygen and carbon monoxide.