摘要
介绍了3套甲胺装置改造前的生产运行状况;论述了技术改造方案:合成部分增设低温换热器,合成塔提馏段采用3级热量回收技术,增设蒸汽冷凝液闪蒸回收系统;对比了改造前后生产运行数据。结果表明,改造后甲胺生产能力从4万t/a扩大到6万t/a,产能提高了50%;吨甲胺蒸汽消耗从10 t降低到7.09 t;改造投资为746万元,年经济效益6 841万元,投资回收期约1.3月。
The running situation before reformation was introduced for 3 sets of methylamine plants; the technical reformation scheme was discussed; the low temperature heat exchanger was added in the synthesis section ; heat recovery technology in 3 stages was adopted in the distillation section of synthesis converter, the recovery system was added for the steam condensate flushing; the comparison was made for the producing running data before ＆ after the reformation, the result indicates that after reformation the production capacity of methylamine is increased by 50% from 40 000 t/a to 60 000 t/a; steam consume per ton of methylamine is reduced from 10 t to 7.09 t; the invest for the reformation is 7.46 million Yuan RMB, annually economic benefit is 68.41 million Yuan RMB, the invest recovery period is only about 1.3 month.
出处
《化肥设计》
CAS
2007年第5期17-19,共3页
Chemical Fertilizer Design
关键词
甲胺装置
工艺技术
改造
methylamine plant
process technology
reformation
