由于成本原因,我国以石脑油为原料的烯烃项目或面临被重新论证甚至取消的命运。长期以来,由于天然气资源稀缺和煤质烯烃环保不过关、经济性差等原因,我国双烯生产一直以石油路线为主。然而,随着北美页岩气产量的增加、煤制甲醇再制烯烃和烷烃脱氢制烯烃技术的迅速发展,传统的石脑油制烯烃路线 Due to the cost reasons, the naphtha-based olefin project in our country may face the fate of being re-justified or even canceled. For a long time, due to the scarcity of natural gas resources and coal-based olefins but not environmentally friendly, poor economy and other reasons, China’s diolefin production has been dominated by the oil route. However, with the increase in North American shale gas production and the rapid development of technologies for the reversion of coal to methanol and the dehydrogenation of alkanes to olefins, the conventional naphtha-based olefinic route