Hydrocracking of AATO on Ni/USY and Ni-Co/ USY Zeolite Catalysts

Abstract

A series of Ni and Ni-Co were maintained on a mixed support of USY (ultrastable Y) zeolite and active aluminum oxide. The catalysts were characterized by means of element analysis, BET and XRD. The characterization results suggested that the active metal components were introduced without changing the microstructure. Then catalytic hydrocracking activity was studied using AATO (distillate of coal tar) in a tubular reactor. AATO conversion was 39.40% and 41.37% using the 10%Ni/USY catalyst and 10%Ni-6%Co/USY catalyst, the hightest total selectivity of benzene and xylol was 67.1% in 10%Ni-10%Co/USY catalyst than others under the reaction conditions studied [T=480°C, P=4.5MPa, LHSV=3.0h-1].

Polyacrylonitrile‐based porous polymer spheres and their conversion to N‐doped carbon materials for adsorption and electrocatalysis

“…Traditionally, the metal platinum can efficiently catalyze this conversion; however, high cost of platinum‐based materials limits its wide application 6 . Therefore, alternative catalysts, such as nonnoble metal or metal‐free catalyst, are necessary 7,8 . Among these alternative catalysts, porous nitrogen‐doped carbon materials are emerging 9 …”

“…Regarding the carbon matrix, the conductivity of graphite is higher than that of amorphous carbon. Nitrogen atoms can be introduced into carbon materials as chemical nitrogen and structural nitrogen 7,8,24 . Both NH x (x: 1–2) and NO x (x: 1–2) can be attributed to chemical nitrogen while pyrrolic N, pyridinic N, and quaternary N belong to structural nitrogen.…”