摘要
在基于PRO/Ⅱ对低温费托合成系统进行模拟及优化的基础上,采用热力学分析方法,对低温费托合成系统进行了量衡算,分析了系统中各主要能耗单元的效率和损失状况。计算结果表明,系统中损失最大的过程是费托合成反应过程。费托合成反应器是损失最大的设备,效率为86.80%,损失占了总损失的85.15%;冷凝液回流泵效率最低,只有6.71%;效率最高的为石蜡收集槽、石蜡泵、石蜡中间槽等,几乎没有损失。采用热力学分析方法可以更准确地揭示系统中各环节和设备的最大损失,为改进设备、节约能源提供目标和对策。
Based on the PRO/Ⅱ simulation and optimization results of low temperature Fischer-Tropsch synthesis （FTS） system, the exergy thermodynamic analysis was applied to calculate the exergy distribution of Fischer- Tropsch synthesis system. The exergy efficiency and exergy losses of this system were also analyzed. The results show that FTS reaction process is the largest exergy loss process. The equipment with the maximum exergy loss is FTS reactor,with exergy efficiency 86.80% , sharing 85.15% of total exergy loss;the condensate backflow pump has the lowest exergy efficiency, which is only 6.71% ;the exergy efficiencies of wax collection tank, wax pump and wax intermediate tank are the highest, which have no exergy loss nearly. By using exergy analysis method, it can be more accurate and convenient to uncover the process and devices with the maximal exergy loss, which can set up the target and provide suggestions for equipment improving and energy saving.
出处
《化学工程》
CAS
CSCD
北大核心
2012年第12期53-56,78,共5页
Chemical Engineering(China)
基金
国家重点基础研究发展计划(973计划)(2010CB736203)
关键词
热力学分析
费托合成
炯效率
炯损失
thermodynamic analysis
Fischer-Tropsch synthesis
exergy efficiency
exergy loss
