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Difference between revisions of "Gasification"
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Gasification is the conversion of a solid or liquid organic compound in a gas phase and a solid phase. The gas phase, usually called 'syngas' or 'producer gas', has a high heating power and can be used for power generation or biofuel production. The solid phase, called char, includes the organic unconverted fraction and the inert material present in the treated feedstock. The syngas produced is a gas mixture of carbon monoxide (CO), hydrogen (H<sub>2</sub>), methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) as well as light hydrocarbons, such as ethane and propane, and heavier hydrocarbons, such as tars. Undesirable gases, such as sulphidric (H<sub>2</sub>S) and chloridric acid (HCl), or inert gases, such as nitrogen (N<sub>2</sub>), can be present in the syngas. Conversion of organic material is achieved by exposing the feedstock to high temperatures, typically 700°C - 1100°C in the presence of a gasifying agent. The gasifying agents used are air, oxygen, steam or a mixture thereof. | '''Gasification'' is the conversion of a solid or liquid organic compound in a gas phase and a solid phase. The gas phase, usually called 'syngas' or 'producer gas', has a high heating power and can be used for power generation or biofuel production. The solid phase, called char, includes the organic unconverted fraction and the inert material present in the treated feedstock. The syngas produced is a gas mixture of carbon monoxide (CO), hydrogen (H<sub>2</sub>), methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) as well as light hydrocarbons, such as ethane and propane, and heavier hydrocarbons, such as tars. Undesirable gases, such as sulphidric (H<sub>2</sub>S) and chloridric acid (HCl), or inert gases, such as nitrogen (N<sub>2</sub>), can be present in the syngas. Conversion of organic material is achieved by exposing the feedstock to high temperatures, typically 700°C - 1100°C in the presence of a gasifying agent. The gasifying agents used are air, oxygen, steam or a mixture thereof. | ||
Gasification of organic material offers several advantages. The produced syngas can be more efficient than direct combustion of the original feedstock, and can be used for multiple applications, such as heat and electricity generation, including high temperature heat for industry, for mechanical energy, as transport fuel, as raw material for chemicals, and when cleaned and upgraded to near pure methane, can be injected into the grid. | Gasification of organic material offers several advantages. The produced syngas can be more efficient than direct combustion of the original feedstock, and can be used for multiple applications, such as heat and electricity generation, including high temperature heat for industry, for mechanical energy, as transport fuel, as raw material for chemicals, and when cleaned and upgraded to near pure methane, can be injected into the grid. | ||