干粉煤气化激冷气系统试验及优化改造

Test and Optimization of Dry Gasification and Gasification

河南能化鹤壁煤化工有限公司60万t/a甲醇项目,采用壳牌干粉煤气化工艺,为国内已投运的单炉能力最大的粉煤气化装置。装置于2013年投料生产,运行期间由于气化炉合成气冷却器"十字架"积灰造成气化炉负荷低、运行周期短等问题。为解决气化炉积灰问题,提高装置负荷,进行激冷气系统多条件试验及优化改造,缓解了合成气冷却器的积灰问题,改造实施后,达到了预期效果。

The 600 000t/a methanol project of Henan Nengha Hebi Coal Chemical Co.,Ltd.adopted Shell dry pulverized coal gasification process,which was the largest pulverized coal gasification unit that had been put into operation in China.The installation of the device was put into production in 2013.During the operation,problems bubbled like low gasifier load,short operating cycle and other issues due to the dust deposit of gasifier synthesis gas cooler ＂cross＂.In order to solve the problem of gasification furnace dust deposit and increase the load of the gasifier,the multi-condition test and optimization of the cooling air system are carried out to alleviate the fouling problem of the synthesis gas cooler.The expected effect was achieved after the transformation and implementation.