<正>By the end of November 2015 the first in China 40 kt/a butadiene tailgas hydotreating unit has been operating smoothly for 4.5 months at the Maoming Petroch
Catalytic hydrogenation is an appropriate method for the improvement of C9 petroleum resin(C9PR) quality. In this study, the Ni2P/SiO2(containing 10% of Ni) catalys
A well core-shell composite of Y@meso-Al with a mesoporous alumina shell and a Y zeolite core was synthesized. The mesoporous alumina shell has a wormhole-like