摘要
2套采用2．0MPa无饱和塔全低变工艺的变换装置在运行中均存在系统阻力大、蒸汽消耗高等问题。经总结和借鉴相关经验，通过技改实现气体分流，使单套变换系统空速在可控范围内，达到了降低系统阻力及蒸汽消耗的目的。改造后，变换系统阻力由0．25MPa降至约0．01MPa，吨氨蒸汽耗由540～620kg降至420-440kg。
In running of two sets of shift conversion units which adopt 2.0 MPa without saturating tower total low-temperature shift conversion process there are problems of great system resistance and high steam consumption, etc. After sum-up and consult to relative experiences, by technical transformation the gas stream is split, enabling air speed to be in controllable range, and realizing the goal of reducing system resistance and steam consumption. After the revamp, the resistance of the shift conversion system is reduced from 0.25 MPa to about 0.01 MPa, and steam consumption per ton of ammonia is lowered from 540 -620 kg to 420 -440 kg.
出处
《化肥工业》
CAS
2015年第6期37-41,共5页
Chemical Fertilizer Industry
关键词
全低变
节能改造
总结
total low-temperature shift
energy-saving renovation
sum-up
