Comparison of technical parameters of different coal gasifications
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Gasifier type Fixed bed Fluidized bed Air flow bed Representative technology Ende furnace Lucci HTW Ash fusion poly ShellTexacoGSP Slagging method Dry ash Dry ash Dry ash Ash fusion liquid slag Liquid fusion Type of slag coal: anthracite, bituminous coal, lignite, bituminous coal, bituminous coal, coal feeding form, lump coal, crushed coal, crushed coal, dry coal, coal water slurry, dry coal, pulverized coal, particle size mm4-105-500-60-6﹤0.1﹤0. 10.25 Gasification temperature ℃ 800-1000800-1000800-1000800-1100～1400～1400～1400 Gasification pressure mpa 0.022.241.00.032.5-33.4-6.52.5Oxygen/coalNm3/kg0.640.410.370.4540.71.17 Steam/coalkg/kg1.371.650.370.940.270.92 Crude gas compositionCO48.224.832.16306746.564H235.338.340.464023.9233.127CO213.825.821.48223.85193CH41.89.31.8720.150 0.1N20.90.73.965.071.21.5-5.5 Gas calorific value MJ/Nm310.711.4410.719.9811.29.5811.1 Oxygen yield Nm3/kg2.632.391.532.11.692.61 Carbon conversion rate%85-95﹥95～95～9099﹥95 Cold gas efficiency%80-85～8576～71.375.8～76 Carbon content in ash %10-20 117.7～9 H2-CO2/CO+CO20.35 0.25 0.35 0.35 0.28 0.22 0.36 Investment is smaller than large
The gasification pressure of ash fusion has reached 1MPa. And the Ende furnace should be a fluidized bed!
Why is it different from what I know? Both shell and lurgi stoves can use lignite.
Ash fusion aggregation is a domestic technology, and it needs to be continuously improved to increase the operating pressure to 4.0MPa, which definitely has a bright future.
Project Shell Powdered coal gasification process Texaco coal-water slurry gasification process Gasifier features air flow bed, liquid slag discharge air flow bed, liquid slag discharge gasification coal types sub-bituminous coal, bituminous coal, lignite, anthracite and other sub-bituminous coal, bituminous coal, etc. Gasification pressure, MPag 2.0～4.0 4.0～6.5 Gasification temperature, ℃ 1400～1600 1300～1400 Gasification agent oxygen + steam oxygen feeding method Dry coal pulverized coal-water slurry coal consumption, kg/kNm3 (CO+H2) 675～720 690～735 Maximum coal input per furnace, t/d 2000 2000 Oxygen consumption, Nm3/kNm3 (CO+H2) 330～360 380～460 Carbon conversion rate, % ≥99 96～98 Cold gas efficiency, % 81～83 70～76 Effective gas (CO+H2) content, % 90～80 Total thermal efficiency, % 98 90～95 Operation flexibility, % 50～120 70～110 High technological maturity This post was last edited by cukeworm on 2008-1-10 17:24 ]
First of all, thank you to the original poster. It is really well organized. Sorry, I have two small suggestions. I hope the poster will accept them.: 1. Ende furnace should be a fluidized bed ； 2. For information in this table format, please upload it again as an attachment. Thanks!
The coal water slurry gasification pressure of Texaco has reached an operating pressure of 8.5MPa, and the operating pressure of SHELL and GSP has also reached 4.0MPa.
There are problems with many of the poster's data on air-flow bed gasification technology. Could you please check the source again and correct it so as not to mislead others?
thanks useful stuff, but some places need to be corroborated
The data is complete, but not very accurate!