What is the typical composition of the gas produced by Shell gasifiers?
Thread Content
What is the typical composition of the gas produced by Shell gasifiers?
This is the composition of the raw gas in a Shell gasification process as reported in the literature; the original poster can refer to it: Composition of raw gas – Shell/%: CO 60.2, H2 23.6, CO2 1.3, CH4 0.1, N2+Ar 7.5. Effective gas content >83.6%; net thermal efficiency 94–99%
Typical net gas composition of the shell gasification process: H2 – 26%, CO – 64%, N2 – 8%, H2O – 2%, sulfur – less than 50 ppm; calorific value – 10.6 MJ/m3
For different coal types, the components of the effective gas produced also vary. Those used in ammonia and urea production contain a high proportion of N2, with a volume fraction of 4-8%. CO2, used for the production of carbonyl synthesis gas, has a high carbon content and low N2 content, at only around 0.5%-1.5%. Generally, CO can range from 60-68%, H2 from 21-28%, CO2 around 10%, while H2S has a wider range, varying from 0.1-0.8%. There is also a small amount of NH3, HCN, and CH4, with volume fractions generally in the range of several hundred or dozens of ppm. The above is what the author has derived from his experience, and it is quite in line with the actual situation.