Patent ID: 8585789
Filing Date: 2013-11-19
Classification: C01B,C10J,C10K,C12P,Y02E,Y10T

Abstract:
1. A method of gasification of carbonaceous materials in a gasifier to produce a product gas comprising carbon monoxide, hydrogen, and tar; comprising: adding one or more carbonaceous materials, adding a molecular oxygen containing gas, adding carbon dioxide gas and optionally adding water 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 2.0 and less than about 3.0; wherein the gasifier produces ash comprising ash-carbon and wherein said ash comprises less than about 10% of ash-carbon; wherein said product gas is treated at a temperature of about 1750° F. to about 3500° F. in the presence of molecular oxygen to produce a raw syngas comprising carbon monoxide, hydrogen, and syngas-carbon; wherein said raw-syngas comprises less than about 0.5 pound syngas-carbon per 1000 SCF raw-syngas produced, wherein said gasifier comprises non-catalytic gasification.