气体多级压缩过程火用经济分析优化

石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (9): 70-74.

气体多级压缩过程火用经济分析优化

郭伟新,陆航宇,万向成,张冰剑,陈清林

中山大学化学工程与技术学院，广东省石化过程节能工程技术研究中心

收稿日期:2018-12-03 修回日期:2019-02-27 出版日期:2019-09-12 发布日期:2019-09-25
通讯作者: 陈清林 E-mail:chqlin@mail.sysu.edu.cn
基金资助:
国家自然科学基金项目

EXERGOECONOMIC ANALYSIS AND OPTIMIZATION OF MULTI-STAGE GAS COMPRESSION PROCESSES

Received:2018-12-03 Revised:2019-02-27 Online:2019-09-12 Published:2019-09-25
Supported by:

摘要/Abstract

摘要： 以某实际裂解气多级压缩过程为背景，基于Aspen Plus模拟数据，进行压缩过程火用经济分析。通过分析不同供入火用价下，压缩级数对压缩过程整体经济性的影响，揭示最佳压缩级数与供入火用价之间的关系。实例研究表明，供入火用价越高，压缩级数对多级压缩过程整体经济性的影响越显著，最佳压缩级数随供入火用价的增大而增大。当供入?价为0.31~0.58元/(kW?h)时，三级压缩最优；当供入火用价为0.59 ~ 0.94元/(kW·h)时，四级压缩的总费用最小。当供入火用价高于0.94元/(kW·h)时，相应的最优压缩级数为五级或五级以上。

关键词: 裂解气, 火用经济分析, 用能优化, 多级压缩

Abstract: Exergoeconomic analysis was conducted on an actual cracking gas multi-stage compression process based on simulation data from Aspen Plus. The impacts of number of compressing stages on the total economic performance at different prices of input exergy were studied to reveal the relationship between optimal stage number and price of input exergy. The results obtained showed that the higher the price of input exergy, the more the impact of the stage number on the total cost. The optimal stage number increased as the price of the input exergy increased. Among them,the optimal number of compressor stage was 3 When the price of input exergy was 0.31-0.0.58 Yuan/(kW.h),When price of input exergy was 0.59-0.94 Yuan/(kW.h), the optimal number of stage was 4, and as input exergy exceeded 0.94 Yuan/(kW.h), the optimal number of stages was 5 at least.

Key words: cracking gas, exergoeconomic analysis, optimization of energy utilization, multi-stage compression

中图分类号:

郭伟新陆航宇万向成张冰剑陈清林. 气体多级压缩过程火用经济分析优化[J]. 石油炼制与化工, 2019, 50(9): 70-74.

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