Process for co-gasification of two or more carbonaceous feedstocks and apparatus thereof
First Claim
1. A process for co-gasification of two or more carbonaceous feedstock, said process comprising:
- completely combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, in presence of steam, with an amount of oxygen to produce a heated effluent in a first reactor;
separating carbon particles from the heated effluent using a cyclone separator as the heated effluent travels from the first reactor to a second reactor, wherein the cyclone separator is connected to the first reactor via a cyclone separator inlet port and the second reactor is connected to the cyclone separator via a gaseous inlet port, and recycling the separated carbon particles to the first reactor; and
carrying the heated effluent forward to the second reactor,wherein the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, in the second reactor to produce synthesis gas; and
wherein the first reactor and second reactor are separate vessels.
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Abstract
The present invention relates to a process for co-gasification of two or more carbonaceous feedstock, said process comprising combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, to produce a heated effluent; carrying the heated effluent to second reactor where the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas. The present invention also relates to an apparatus for co-gasification of two or more carbonaceous feedstock, comprising a first reactor (3), having a first feedstock inlet port (1), a oxygen or air inlet port (2), a steam inlet port (9), a ash removal port (7), and a solid recycle port (6); a first cyclone separator (5) connected to the first reactor (3) through a first cyclone separator inlet port (4); a second reactor (16), having a second feedstock inlet port (10), and a ash removal port (15), the second reactor is connected to the first cyclone separator (5) through a gaseous inlet port (8); and a second cyclone separator (12), having a fine particles removal port (13), and an effluent port (14), wherein the second cyclone separator is connected to the second reactor through a second cyclone separator inlet port (11).
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Citations
12 Claims
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1. A process for co-gasification of two or more carbonaceous feedstock, said process comprising:
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completely combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, in presence of steam, with an amount of oxygen to produce a heated effluent in a first reactor; separating carbon particles from the heated effluent using a cyclone separator as the heated effluent travels from the first reactor to a second reactor, wherein the cyclone separator is connected to the first reactor via a cyclone separator inlet port and the second reactor is connected to the cyclone separator via a gaseous inlet port, and recycling the separated carbon particles to the first reactor; and carrying the heated effluent forward to the second reactor, wherein the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, in the second reactor to produce synthesis gas; and wherein the first reactor and second reactor are separate vessels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification