Research Progress and Trends of Styrene Production Technology based on Patent Analysis
With the rapid expansion of styrene production capacity in recent years,the styrene industry is gradually transitioning towards overcapacity,and enterprises are facing increasingly severe survival competition.By analyzing and exploring the patent application trends,applicant distribution,and technological development trends of styrene production technology,the study concludes that:ⅰ)the industrial application of ethylbenzene catalytic dehydrogenation process and PO/SM is very mature,and the application difficulty of new technologies is relatively high;ⅱ)innovating and improving existing technologies is a feasible technical route;ⅲ)since the process route of PO/SM is basically monopolized by foreign countries,it is recommended that Chinese enterprises should strengthen the research and development of independent intellectual property rights to break the technological monopoly of foreign companies;and ⅳ)as the development of new technologies in the styrene process is relatively slow,it is recommended to strengthen the reserve and layout of new process technologies.
万方数据
维普
