Development status and analysis of pure benzene industry in refining and chemical enterprises
Thanks to the expansion of downstream production capacity of pure benzene,the domestic supply gap of pure benzene has existed for a long time,with an annual import demand of 2-3.5 million tons.Although the downstream production capacity of the pure benzene industry chain has been at a high level,with the development of technology,many downstream plants of pure benzene have problems such as small plant size,backward process routes,large environmental pollution,and poor economic benefits.The downstream production capacity of the pure benzene industry chain needs to be iteratively upgraded.The shape-selective disproportionation technology of toluene can not only produce C8 aromatics with high paraxylene(PX)concentration,but also produce a large amount of pure benzene by side,which has the advantages of simple process,low investment,and low production costs.Facing increasingly fierce market competition,refining and chemical enterprises need to constantly complement,extend and strengthen the chain to give full play to the advantages of integrated development of the industrial chain,so as to achieve upstream and downstream collaborative operations,improve resource utilization efficiency,enhance risk resistance ability,and reduce the impact of market fluctuations.The extension and development to the downstream of the pure benzene industrial chain can save the logistics cost of pure benzene delivery,and give play to the latecomer advantage brought by the large-scale device and advanced technology.
pure benzeneindustrial chainintegrationshape-selective disproportionation of toluene
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