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:
- 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;
carrying the heated effluent forward so that the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas.
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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
23 Claims
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1. A process for co-gasification of two or more carbonaceous feedstock, said process comprising:
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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; carrying the heated effluent forward so that the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A process for gasification of carbonaceous feedstock, said process comprising:
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combusting petcoke in a fluid bed reactor at a temperature in the range of 800 deg C. to 1700 deg C. and pressure in the range of 1 bar to 100 bar, in presence of steam with an amount of oxygen, thereby producing a heated effluent; separating carbon particles from the heated effluent; sending the separated carbon particles to the fluid bed reactor; carrying the heated effluent to a moving bed reactor; and gasifying Indian coal in the moving bed reactor wherein the heated effluent reacts with the Indian coal to produce synthesis gas.
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16. An apparatus for co-gasification of two or more carbonaceous feedstock, said apparatus comprising:
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a first reactor, having a first feedstock inlet port, an oxygen or air inlet port, a steam inlet port, an ash removal port, and a solid recycle port; a first cyclone separator-connected to the first reactor through a first cyclone separator inlet port; a second reactor, having a second feedstock inlet port, and an ash removal port, wherein the second reactor is connected to the first cyclone separator through a gaseous inlet port; and a second cyclone separator, having a fine particles removal port, and an effluent port, wherein the second cyclone separator is connected to the second reactor through a second cyclone separator inlet port. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification