The differences between fluid bed catalytic cracking fixed bed catalytic cracking are as
|Fluid bed catalytic cracking
||Fixed bed catalytic cracking
|It is comparatively modern technique.
||It is comparatively an older technique.
|It is continuous process.
||It is batch process.
|The catalyst is fluidized (i.e. in form of fine powder), circulated by air stream and is separated from the oil vapoues by means of cyclone.
||The catalyst has bigger particle size and is stationery.
|The cracking temperature is 5000C.
||The cracking temperature is 4500×
|The pressure of heavy oil vapors is 3-5.
||The pressure of heavy oil vapors is 1-5