摘要
提出了液化天然气(LNG)冷能用于回收天然气中天然气凝液的工艺。该工艺天然气凝液的回收率为96.8%,其中乙烷的回收率为93.2%。建立了该工艺的分析模型,分析了该工艺的能量利用情况,指出了工艺中用能薄弱的环节,为整个工艺流程的优化提供了理论依据。经分析,该工艺的效率为44.3%;与电压缩制冷工艺相比,节电效率为65%。
A novel process to recovery natural gas liquids from raw natural gas with cryogenic energy utilization of liquefied natural gas （LNG） is proposed. The total recovery rate of natural gas liquids is up to 96. 8% ,and the recovery rate of ethane is 93.2%. Exergy analytic model of the process is established. The status of energy utilization is analyzed, the weak link of energy utilization is pointed out. It provides the theoretical basis for optimization of the whole process. The results show that exergy efficiency of the new process is 44. 3%. Compared to the current electric refrigeration process,the proposed process uses the cryogenic energy of LNG and saves 65% of electricity.
出处
《现代化工》
CAS
CSCD
北大核心
2010年第10期74-76,78,共4页
Modern Chemical Industry
关键词
液化天然气
冷能利用
凝液回收
[火用]分析
liquefied natural gas
cryogenic energy utilization
natural gas liquids recovery
exergy analysis
