Help coal chemical industry green developmen
According to the Chinese Academy of Sciences, the research was carried out by Professor Pan Xiulian and the team of Academician Xinhe Bao at the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences in collaboration with the research team of the University of Science and Technology of China.
"Catalytic reaction is the process of converting raw materials (reactants) into products (target products), accelerated by a catalyst. We want the reactants to be converted as much as possible (high conversion) and as precisely as possible to the target products we need, with fewer by-products (high selectivity)." In most cases, however, the conversion rate of the reactant and the selectivity of the target product tend to trade off, Pan said. To achieve both high conversion rate and high selectivity has always been the direction of catalytic research.
According to reports, in 2016, Pan Xiulian, Bao Xin and their team successfully created the OXZEO catalytic system in the process of studying the direct conversion of coal-based syngas into low carbon olefin. When the carbon monoxide conversion rate was 17%, the selectivity of low carbon olefin reached 80% for the first time in the world, breaking the theoretical limit of the selectivity of 58% of the classical Fischer-Tropsch technology route in this field. It also has the advantages of low water consumption and low carbon emissions.
Since then, the research team has developed a new generation of OXZEO biffunctional catalyst with dedicated research and continuous innovation. Under the condition of maintaining the low carbon olefin selectivity greater than 80% (up to 83%), the one-way conversion rate of carbon monoxide reaches up to 85%, and the low carbon olefin yield reaches 48%, which is the best international level.
"In the future, this technology will be further combined with green hydrogen prepared from renewable energy sources to develop China's original low-consumption, low carbon emission new coal chemical system, helping to ensure the national energy, resource security and the realization of the 'double carbon' goal." Write and speak.
