CFBC gasification is presently rated as the most economical, environmental friendly, operational ease and latest technology in coal gasification.
Process Flow: After crushing and sieving, the coal (size <10mm) is transferred to the main gasifier bin through conveyors and coal scuttles. The coal from the main bin is injected into the gasifier from the lower section of the gasifier shell with the help of screw feeders. Pre-heated air along with steam is pumped into the gasifier shell. The coal is combusted at temperatures above 1000dg C. Coal streams are in the fluidisation state, the furnace contains no dry distillation layer, and the tars, phenols and cyanides decompose completely under high temperature and are converted to complex hydro carbon structures and become an integral part of the combustible gas.
Coal Gas at temperatures above 950dg C flows through cyclone separator, high temperature preheater/ waste heat recovery, fly-ash filter and gas cooler for cooling down. The clean cold gas can then be transported though pipeline for usage at required pressures and volumes.
CFBC gasification successfully substitutes the use of high cost fuels such as heating oil, LDO, HFO, natural gas, propane etc. These fuels which are used for the thermal application of the process are substituted by Coal gas/ Producer gas generated through coal gasification technologies.
CFBC gasifiers come in capacities of 20,000-60,000 in single models.
For more information on CASE coal gasifier technology, please visit: http://www.casepl.com
No comments:
Post a Comment