IGCC with its cleaning and effectiveness

is a hopeful power generation process.The high temperature purification of fuel gas is a key step of IGCC

and also an important tendency for future chemical technology.It will lead to a revolution of some ptocesses in traditional chemicai industries

such as

amonia synthesis

sulfuric acid

methanol synthesis

etc.The avoidance of unreasonable saddle temperature distribution

will be the direction of energy saving in chemical industry.The deno_x

low pressure drop gas processing in IGCC

are also popular problems in other chemical processes.These problems will be a challenge to the 21 century chemical engineering.