A team from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, along with a colleague from the BP Dalian Energy Innovation Laboratory, developed a dual-layer catalyst for the production of gasoline-range hydrocarbons from syngas. A paper on their work is published in the journal Fuel.
They obtained 62% CO conversion and 66% gasoline-range content in hydrocarbon products over the dual layer catalyst system, which comprised a DME-synthesis catalyst (CZAA) and a palladium-modified HZSM-5 (PdZSM-5).
The results suggested that the product hydrocarbon distribution was mainly determined by PdZSM-5, and the modification of Pd on HZSM-5 favors the formation of isoparaffin products at operated conditions.
The results also showed that the existence of inert layer in CZAA/PdZSM-5 was beneficial to the formation of C5–C11 hydrocarbons. Separating CZAA and PdZSM-5 decreased the formation of byproduct CO2.
Chun Wang, Dazhi Zhang, Chuanyan Fang, Qingjie Ge, Hengyong Xu (2014) “Synthesis of gasoline from syngas in a dual layer catalyst system,” Fuel, Volume 134, Pages 11-16 doi: 10.1016/j.fuel.2014.05.045