摘要
针对亚熔盐铬盐清洁生产工艺能耗大、热利用率低的问题及工艺放大的需求,采用METSIM软件对此工艺进行了物料和能量衡算,得到了各股物流的详细信息,为工艺放大提供参考;采用夹点技术进行换热网络优化,优化后的热交换网络可使热公用工程及冷公用工程用量分别减少31.5%和31.7%,总热利用率提高11.0%.
The cleaner chromate production process using sub-molten salt has been successfully simulated using METSIM in order to evaluate the mass balance, energy consumption, heat utilization efficiency, and other conditions necessitated for the process scaling up. Based on the simulation results, the mass and heat balances of each operation unit are obtained, providing valuable reference for the process design. Furthermore, the heat exchange network optimization using pinch technology is performed, enabling the reduction of the heat and cool energy consumption by 31.5% and 31.7%, respectively, and increase of the total energy efficiency by 11.0%.
出处
《过程工程学报》
CAS
CSCD
北大核心
2013年第1期99-104,共6页
The Chinese Journal of Process Engineering
基金
国家重点基础研究发展规划(973)基金资助项目(编号:2013CB632605)
国家自然科学基金资助项目(编号:51274179
51090382)
国家高技术研究发展计划(863)基金资助项目(编号:2011AA060702)
中科院重点部署项目资助(编号:KGCX2-EW-215)
关键词
亚熔盐
铬盐工艺
METSIM
流程模拟
夹点技术
换热网络
sub-molten
process of chromate
METSIM
process simulation
pinch point technology
heat exchange network
