Coal gassification is a key technology for developing coal-based industries

such as chemical products

liquid fuel

combined cycle power generation

multiple co-generation system

hydrogen production

and fuel cell etc..The dry-fed gassification in an air flow bed has advantages of high throughput per gassifier

wide adaptibility of coal sorts

and high carbon conversion efficiency

so it is easily to be used in large-scale gassification.Moreover

the dry-fed coal gassification techology

such as Shell

Prenflo

GSP and TPRI two-stage gassification

as well as slurry-fed technology

such as Texaco

E-Gas

and domestic developed coal gassification have been presented

and these two kinds of technology being compared.