日前，国家能源集团宁夏煤业公司万吨级α-烯烃分离装置打通全流程，一次性试车成功，产出纯度大于99%的聚合级1-己烯与纯度大于98%的1-辛烯产品，标志着我国在煤基高端化工原料分离技术领域实现关键跨越，延伸了煤炭间接液化α-烯烃产业链，为下游聚烯烃弹性体、茂金属聚α-烯烃等产业发展奠定坚实基础。

Recently, the 10,000-ton α-olefin separation unit of the Ningxia Coal Industry Company of the National Energy Group has completed the entire process test and achieved a successful trial run. It has produced polymer-grade 1-hexene with a purity greater than 99% and 1-octene with a purity greater than 98%, marking a key breakthrough in the field of coal-based high-end chemical raw material separation technology in China. This has extended the α-olefin industrial chain of coal indirect liquefaction and laid a solid foundation for the development of downstream industries such as polyolefin elastomers and metallocene polyα-olefins.

该项目于2019年启动。历经6年，研发团队开发出“萃取精馏/催化精馏”分离工艺，攻克了费托油深度脱氧、同碳数烷烯烃分离及高纯度α-烯烃提纯等技术难题，完成了从单点实验到全流程工艺技术集成，形成了具有自主知识产权的α-烯烃分离成套工艺技术。

This project was initiated in 2019. After six years of efforts, the R&D team developed the "extractive distillation/catalytic distillation" separation process, overcoming technical challenges such as deep deoxygenation of Fischer-Tropsch oil, separation of alkenes with the same carbon number, and purification of high-purity α-olefins. They completed the transition from single-point experiments to the integration of the entire process technology, and formed a complete set of α-olefin separation technology with independent intellectual property rights.

据悉，该装置已通过中国石油和化学工业联合会组织的72小时性能考核。α-烯烃分离工艺路线流程合理、方案可行、技术可靠。装置的成功投产，为10万吨级费托1-己烯与1-辛烯的产业化提供了核心技术支撑。

It is reported that this device has passed the 72-hour performance assessment organized by the China Petroleum and Chemical Industry Federation. The α-olefin separation process route is reasonable, the plan is feasible, and the technology is reliable. The successful commissioning of the device provides core technical support for the industrialization of 100,000 tons of 1-hexene and 1-octene from Fischer-Tropsch process.

α-烯烃是生产高端聚烯烃、高性能润滑油基础油(PAO)等产品的主要原料。长期以来，我国C6以上α-烯烃严重依赖进口，尤其是从煤制油费托合成产物中分离聚合级α-烯烃工艺技术长期被国外垄断，严重制约了我国α-烯烃及下游产业的发展。

α-alkenes are the main raw materials for the production of high-end polyolefins, high-performance lubricant base oils (PAO), and other products. For a long time, China has been heavily dependent on imports for α-alkenes above C6, especially the process technology for separating polymer-grade α-alkenes from the Fischer-Tropsch synthesis products from coal has been monopolized by foreign countries, which has severely restricted the development of α-alkenes and the downstream industries in China.