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Gasification is a process that converts biomass- or fossil fuel-based carbonaceous materials into gases, including as the largest fractions: nitrogen (N 2), carbon monoxide (CO), hydrogen (H 2), and carbon dioxide (CO 2).
And also, after the gasification process, CO 2 takes up to 13% - 15.3% by mass in the syngas stream for biomass sources, while it is only 1.7% - 4.4% for coal. [29] This limit the conversion of CO to CO 2 in the water gas shift, and the production rate for H 2 will decrease accordingly.
[34] [35] The heating process removes (via gasification) the parts of the biomass that has the lowest energy content, while the parts with the highest energy content remain. Approximately 30% of the biomass is converted to gas during the torrefaction process, while 70% remains, usually in the form of compacted pellets or briquettes.
Below is a schematic flow diagram of an IGCC plant: Block diagram of IGCC power plant, which utilizes the HRSG. The gasification process can produce syngas from a wide variety of carbon-containing feedstocks, such as high-sulfur coal, heavy petroleum residues, and biomass.
The Fischer–Tropsch process is an important reaction in both coal liquefaction and gas to liquids technology for producing liquid hydrocarbons. [1] In the usual implementation, carbon monoxide and hydrogen, the feedstocks for FT, are produced from coal, natural gas, or biomass in a process known as gasification.
Multiple types of solid fuel gasifiers are commercially available for coal, petcoke, and biomass gasification.Designs vary depending on fuel and intended application. As a result, they can differ in the composition of the syngas produced and the efficiency with which they convert coal energy content to syngas energy content - a performance parameter typically termed cold gas efficiency. [3]
Syngas to gasoline plus (STG+) is a thermochemical process to convert natural gas, other gaseous hydrocarbons or gasified biomass into drop-in fuels, such as gasoline, diesel fuel or jet fuel, and organic solvents.
In the gasification process, fuel will be gasified at 850 °C [12] in the presence of steam to produce a nitrogen-free and clean synthetic gas. Charcoal will be burnt with air in the . Figure 2: Showing Gasification Process Schematic Diagram. combustion chamber to provide the heating for the gasification process as it is an endothermic process ...