Petrochina Company Limited

China University of Petroleum

Dalian University of Technology

Petrochemical Research Institute of Cnpc

An Ma

Fei Liu

Chunyi Li

Guowei Wang

Changming Li

Changyu Sun

Xuejun Zhang

Yin Zhang

Feng Du

Jiaxu Liu

Chaohe Yang

Xiaoliang Yuan

Guangjin Chen

Honghong Shan

Pingyi Wu

Yuandong Hou

Xiulin Wang

Xuqiang Guo

Jianfang Zhang

Genlin Niu

Yongshan Tu

Yudong Sun

Zheng Li

Zhongxiang Han

Honglei Sun

Jiarui Piao

Lijun Yan

Hai Xiao

Mei Wang

Xiuyi Li

Qiong Lu

Hongchen Guo

The present invention relates to a selective hydrogenation catalyst for an unsaturated compound. The supported catalyst contains at least one Group VIB non-noble metal oxide and at least one Group VIII non-noble metal oxide deposited on a carrier; and the catalyst has an optimized acid distribution on the surface of the catalyst, and more preferably has an optimized Group VIII/VIB metal ratio and a Group VIII non-noble metal density per unit of catalyst surface area. Using the catalyst of the present invention can have the following advantages: the weight increase of light sulphides in an unsaturated compound or a mixture containing unsaturated compounds, the hydrogenation of a polyunsaturated compound, the isomerization of a monounsaturated compound, high operation flexibility and a significant improvement in the effects of a hydrogenation treatment.

Selective hydrogenation catalyst for unsaturated compound

An apparatus and a method that increase the concentration of recycled hydrogen in the hydrogenation unit are disclosed having a hydration separation unit included between the high-pressure separator and hydrocracking reactor. A part of the recycled hydrogen contacts with the water-in-oil microemulsion to form hydrates from which the light hydrocarbon components are removed. The gas flow entering into the hydration separation unit is present in amount of 20%&#x2dc;100% of the total gas flow coming from the high-pressure separator; the water-in-oil microemulsion, in which the volume ratio of oil and water is 1:1 to 5:1 may increase hydrogen partial pressure in the reactor and thus upgrade the performance of hydrogenation.

Apparatus and method for increasing the concentration of recycled hydrogen in a high pressure hydrogenation reactor

The present invention relates to a catalytic cracking process and a device used in the process in particular, the present invention provides a catalytic cracking process, which comprises which comprises:

Catalytic cracking process and the device used therein

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Beijing, China

An Ma