论文部分内容阅读
近日,中国科学院大连化学物理研究所包信和院士团队基于“纳米限域催化”的新概念,创造性地构建了硅化物晶格限域的单中心铁催化剂,成功实现了甲烷在无氧条件下选择活化,一步高效生产乙烯、芳烃和氢气等高值化学品。相关成果发表在5月9日出版的Science杂志上。同时,相关的PCT专利申请已进入美国、俄罗斯、日本、欧洲和中东等国家和地区。迄今为此,天然气的转化利用通常采用二步法:首先,在高温条件下通过混合氧气、二氧化碳或水蒸汽,将天然气中的甲烷分子重整为含一定比
Recently, based on the new concept of “nano-confinement catalysis”, Bao Xinhe’s academic team at the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, creatively constructed a single-site iron catalyst with a silicide lattice confinement and succeeded in achieving a methane- Under the option of activation, one-step efficient production of ethylene, aromatics and hydrogen and other high-value chemicals. Relevant results published in the May 9 Science magazine. At the same time, the relevant PCT patent applications have entered the United States, Russia, Japan, Europe and the Middle East and other countries and regions. To this end, natural gas conversion and utilization usually adopts a two-step method. Firstly, the methane molecules in natural gas are reformed to have a certain ratio by mixing oxygen, carbon dioxide or water vapor under high temperature conditions