As a representative species of intermediate volatile organic compounds(IVOCs),long-chain alkanes are considered to be important precursors of secondary organic aerosols(SOA)in the atmosphere.This work reviews the prev...As a representative species of intermediate volatile organic compounds(IVOCs),long-chain alkanes are considered to be important precursors of secondary organic aerosols(SOA)in the atmosphere.This work reviews the previous studies on long-chain alkanes in the atmosphere:(1)the detection methods and filed observations of long-chain alkanes in both gas and particle phases are summarized briefly;(2)the laboratory studies of long chain alkanes are reviewed,the kinetic data,reaction mechanism,SOA yields,and physicochemical properties of SOA are included in detail;(3)the research progress related to model simulations of long-chain alkanes are also discussed.In addition,based on available research results,several perspective contents are proposed that can be used as a guideline for future research plans.展开更多
Long-chain alkanes are abundant feedstocks supplied by natural resources and chemical industry. Specially, normal long-chain alkanes are primary products from Fischer-Tropsch synthesis(FTS) process, which is an import...Long-chain alkanes are abundant feedstocks supplied by natural resources and chemical industry. Specially, normal long-chain alkanes are primary products from Fischer-Tropsch synthesis(FTS) process, which is an important route for the utilization of coal in China. Facing a shift of energy nexus towards sustainable society, the conversion of long-chain alkanes derived from coal into value-added products(such as alkenes and oxygenates) is of great importance for securing China’s energy supply and the role transition of the commercial FTS plants from fuel makers to chemical suppliers. Among the potential transformation routes,the direct dehydrogenation of long-chain alkanes into alkenes is an attractive and practical route, due to the broad applications of long-chain alkenes(especially the linear α-olefins). In this review, we will summary the key insights obtained from the literature on the dehydrogenation of light alkanes based on supported metal catalysts and the dehydrogenation of alkanes with homogeneous molecular catalysts and then discuss how to translate these lessons into the development of efficient catalysts and processes for the dehydrogenation of long-chain alkanes into long-chain alkenes.展开更多
基金supported by the Postdoctoral Research Foundation of China(No.2019M660752)Beijing Municipal Commission of Education(No.Z181100005418015)the National Natural Science Foundation of China(Nos.91744204,41822703)
文摘As a representative species of intermediate volatile organic compounds(IVOCs),long-chain alkanes are considered to be important precursors of secondary organic aerosols(SOA)in the atmosphere.This work reviews the previous studies on long-chain alkanes in the atmosphere:(1)the detection methods and filed observations of long-chain alkanes in both gas and particle phases are summarized briefly;(2)the laboratory studies of long chain alkanes are reviewed,the kinetic data,reaction mechanism,SOA yields,and physicochemical properties of SOA are included in detail;(3)the research progress related to model simulations of long-chain alkanes are also discussed.In addition,based on available research results,several perspective contents are proposed that can be used as a guideline for future research plans.
基金supported by Tsinghua University(Initiative Scientific Research Program 20211080079)the National Natural Science Foundation of China(21972161,22172186)+7 种基金Chinese Academy of Sciences(CAS)Pioneer Talents Program(2018-095)Shanxi Talent Program(2019SBRJH01)Autonomous Research Project of State Key Laboratory of Coal Conversion(SKLCC)(2020BWZ006,2021BWZ007)Institute of Coal Chemistry(ICC)Innovation Fund(SCJJ-2020-02)Inner Mengolia Science&Technology Project Plan(2021GG0311)Major science and technology project of Ordos(2022EEDSKJZDZX001)Start-Up Grant of Institute of Coal Chemistry(2020SC001)Synfuels China Co.,Ltd.
文摘Long-chain alkanes are abundant feedstocks supplied by natural resources and chemical industry. Specially, normal long-chain alkanes are primary products from Fischer-Tropsch synthesis(FTS) process, which is an important route for the utilization of coal in China. Facing a shift of energy nexus towards sustainable society, the conversion of long-chain alkanes derived from coal into value-added products(such as alkenes and oxygenates) is of great importance for securing China’s energy supply and the role transition of the commercial FTS plants from fuel makers to chemical suppliers. Among the potential transformation routes,the direct dehydrogenation of long-chain alkanes into alkenes is an attractive and practical route, due to the broad applications of long-chain alkenes(especially the linear α-olefins). In this review, we will summary the key insights obtained from the literature on the dehydrogenation of light alkanes based on supported metal catalysts and the dehydrogenation of alkanes with homogeneous molecular catalysts and then discuss how to translate these lessons into the development of efficient catalysts and processes for the dehydrogenation of long-chain alkanes into long-chain alkenes.
