The whole process model of the diesel hydro-upgrading unit was established by Aspen HYSYS software.The effects of operation parame-ters such as reactor inlet temperature,hydrogen to oil volume ratio and naphtha production at the top of the fracking tower on the hydrogen consumption,naphtha production and quality were investigated.The operation parameters were simulated and opti-mized on the basis of meeting the accuracy require-ments.The results showed that increasing the inlet temperature and hydrogen to oil volume ratio of the modified reactor was beneficial to increasing the naphtha yield,but the catalyst bed temperature was too high to affect the catalyst life.The dry point of naphtha,the flash point of refined diesel oil and the temperature at the top of the tower could be in-creased by increasing the naphtha output.Under the optimal operating conditions of reducing the hydro-gen to oil volume ratio from 1 400 to 1 200 and in-creasing the naphtha dry point from 170.0℃to 173.5℃,the medium pressure steam consumption could be saved by 2.92 t/h and the naphtha produc-tion could be increased by 1.1 t/h.
关键词
柴油加氢改质/流程模拟/Aspen/HYSYS软件/氢油体积比/石脑油/干点
Key words
diesel hydro-upgrading/process simulation/Aspen HYSYS software/hydrogen to oil volume ratio/naphtha/dry point
维普
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