Successes and Challenges in the Development of Dry Gas Cleaning Process
Coal gasification is continued to be one of the most promising options for clean,efficient and continuous power generation,though little progress has been made towards its commercialisation.One of the main hurdles of the commercialisation is reliability of the syngas cleaning process involving separation of critical impurities which can adversely affect the downstream process and may result in plant shutdown.For example,failure of particulate capturing operation could have instant effect on downstream turbine,catalytic membrane,fuel cell and CO2 separation,therefore hot filtration is considered as the most critical process step in the gas cleaning process.Failure of sulphur,chlorine,alkali and trace element capture steps may also cause serious damage to the downstream processes but the effect will be noticeable after a relatively longer period of operation.During this period it could be possible to take some corrective actions,either manually or through an automatic control system,to prevent the damage.An automatic control system for particulate system could also be suggested to prevent the damage during filter failure but this would also demand installation of an additional backup filtration unit to continue the operation while failed unit is bypassed for repair.Considering these factors,the reliability of gas cleaning process at reasonable costs appears to be the biggest challenge for the commercialisation of the gasification technologies.A novel dry gas cleaning process has been developed at CSIRO to address some of these challenges.This paper illustrates some of the performance results obtained from the dry gas cleaning process developed at CSIRO
Hot filtration:Gas cleaning:Pulse-less filtration.
Sunil D Sharma Keith McLennan Michael Dolan Ty Nguyen Don Chase
CSIRO Energy Technology,P.O.Box 330,Newcastle,NSW 2300,Australia CSIRO Energy Technology,P.O.Box 883,Kenmore QLD 4069,Australia
国际会议
The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)
太原
英文
526-557
2010-08-23（万方平台首次上网日期，不代表论文的发表时间）