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Effects of Small Amounts of Nitrogen Compounds in Feedstock on Performance of Hydrocracking Catalyst
Vacuum gas oil Hydrocracking Poisoning Ammonia Carbazole
2009/8/4
Poisoning by very small amounts of nitrogen compounds was investigated for the catalysts for two types of hydrocracking processes. Nitrogen-free vacuum gas oil was used as feedstock with carbazole an...
Control of Macropore Structure of Hydrocracking Catalyst by Silica-alumina Particle Size and Influence on Hydrocracking Activity and Middle Distillate Selectivity
Hydrocracking Diffusivity Macropore structure Particle size Middle distillate selectivity
2009/7/28
Hydrocracking (HC) catalysts consisting mainly of silica-alumina and a small amount of ultra stable Y type (USY) zeolite were prepared with silica-alumina powders of different mean particle sizes, an...
Titanium Modified USY Zeolite-based Catalysts for Hydrocracking Residual Oil (Part 3) Preparation and Activity Test of Catalysts Based on Realuminated USY
Hydrocracking Realuminated USY zeolite Titanium modification
2009/7/24
A high Si/Al ratio USY zeolite with high mesoporosity was used as the starting material for hydrocracking catalysts for residual oil to improve the catalytic selectivity for middle distillate fractio...
Titanium Modified USY Zeolite-based Catalysts for Hydrocracking of Residual Oil (Part 2) Development of Catalysts for Fixed Bed Reactors
Hydrocracking Titanium modification USY zeolite Residual oil Mesopore
2009/7/24
The present study tried to develop hydrocracking catalysts for commercial hydrotreating plants to treat residual oil based on the molybdenum-supported Ti-modified zeolite (MTZ) described in Part 1 of...
Titanium Modified USY Zeolite-based Catalysts for Hydrocracking Residual Oil（Part1）Preparation and Activity Test of Molybdenum Supported Catalysts
Hydrocracking Titanium modification USY zeolite Residual oil Mesopore
2009/7/23
New USY zeolite-based hydrocracking catalysts were developed to meet the increasing demand for producing clean middle distillates from residual oil. Titanium modified USY zeolite was prepared by trea...
Hydrocracking of Vacuum Residual Oil（Part3）Combination of Hydrothermal Cracking and Hydrocracking
Hydrocracking Hydrothermal cracking Vacuum residue Bottom cycle Spent catalyst
2009/7/23
An integrated hydrocracking process using a combination of hydrothermal cracking and hydrocracking was proposed and tested using a micro-autoclave. In the first hydrothermal cracking stage, Arab heav...