Methods for gasification of carbonaceous materials
First Claim
1. A method of gasification of carbonaceous materials in a gasifier to produce a product gas comprising carbon monoxide, hydrogen, and tar;
- said method comprising;
adding one or more carbonaceous materials, adding a molecular oxygen-containing gas, adding a methane-containing gas and optionally adding water or steam into said gasifier;
wherein amount of total oxygen added to said gasifier in pounds per pound of total carbon added to said gasifier comprises greater than about 0.75.
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Abstract
The present disclosure is generally directed to process of gasification of carbonaceous materials to produce synthesis gas or syngas. The present disclosure provides improved methods of gasification comprising: adding one or more carbonaceous materials, adding a molecular oxygen-containing gas, adding a methane-containing gas and optionally adding water or steam into said gasifier. This disclosure is also directed to process of production of one or more alcohols from said syngas via fermentation or digestion in the presence of at least one microorganism.
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Citations
19 Claims
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1. A method of gasification of carbonaceous materials in a gasifier to produce a product gas comprising carbon monoxide, hydrogen, and tar;
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said method comprising;
adding one or more carbonaceous materials, adding a molecular oxygen-containing gas, adding a methane-containing gas and optionally adding water or steam into said gasifier;wherein amount of total oxygen added to said gasifier in pounds per pound of total carbon added to said gasifier comprises greater than about 0.75. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18)
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13. A method of gasification of carbonaceous materials in a gasifier to produce syngas;
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said gasifier comprising a first reaction zone and a second reaction zone; said method comprising; adding one or more carbonaceous materials into said first reaction zone of gasifier; adding a molecular oxygen containing gas, a methane-containing gas and optionally adding water or steam into one or both of said first reaction zone and second reaction zone of said gasifier; wherein amount of total oxygen added to said gasifier in pounds per pound of total carbon added to said gasifier comprises greater than about 1.25. - View Dependent Claims (14, 15, 16, 17, 19)
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Specification