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The process improvement of the coal tar distillation

ZHANG Hong-Yan, TANG Zhi-Gang, ZHOU Rong-Qi, DUAN Zhan-Ting, CAO Ya-Guang (Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China)  
Coal tar is a crucial product of the coking industry and contains many valuable chemical substances which play an important role in industries. Although coal tar is resourceful in China, its separation technique is very,behindhand, which brings serious mixing between different products and environment pollution. In order to improve the condition, two new processes are brought forward in this paper and the stimulations of them are made via PRO/II. The results show that new processes are superior to the old.
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