摘要
甲烷化工艺取代铜洗,对于洁净生产、减少环境污染起到了很好的作用,但原料气中CO和CO2含量的降低使甲烷化反应热减少,其系统热平衡维持困难,必须借助外加热源才能稳定运行。分析了目前甲烷化工艺自热维持方式存在的问题,介绍了低CO和CO2含量非电加热甲烷化工艺技术。实际运行情况证明,无论是高压(31.4 MPa)还是中压(12.0 MPa)情况下,采用过热蒸汽或变换气供热的低CO和CO2含量非电加热甲烷化工艺技术的设计是合理、成功的,运行效果令人满意。
By using methanation process to replace copper liquor washing process is of benefit to clean production and reduction environmental pollution, because of less CO and CO2 content in the feed gas resulting less reaction heat, it is very difficult to maintain heat balance in the system, so an extra heating source has to be added to keep steady operation. Based on the analysis on the existing problems of the self-heating methods adopted at present, a low CO and CO2 content non-electric heating methanation process is introduced. Actural operation results indicate that, both at high pressure （31.4 MPa） and midium pressure （12.0 MPa）, the design of the low CO and CO2 content non-electric heating methanation process using superheated steam or shift gas as the heating source is rational and successful with satisfying performance.
出处
《化肥工业》
CAS
2009年第3期6-8,共3页
Chemical Fertilizer Industry
