Other

China Petroleum Chemical Corporation

Fushun Research Institute of Petroleum and Petrochemicals, Sinopec Corp.

Zhaoming Han

Tao Liu

Xiangchen Fang

Ronghui Zeng

Rong Guo

Xuehui Zhang

Mei Jin

Pai Peng

Youliang Shi

Lijing Jiang

Baoping Han

Benzhe Li

Jihua Liu

Chong Peng

Shike Sun

The present invention relates to a wet start-up method for hydrogenation unit, an energy-saving hydrogenation process, and a hydrogenation apparatus. The method involves heating a start-up activating oil to a specific temperature and flowing the heated oil through a bed of hydrogenation catalyst bed, so that the temperature at the catalyst bed layer is increased to 180&#xb1;10&#xb0; C. or above by means of heat exchange and the reaction heat generated from activation in the start-up method.

Wet start-up method for hydrogenation unit, energy-saving hydrogenation process and hydrogenation apparatus

The present invention discloses a process for hydroconverting a heavy hydrocarbon chargestock, wherein said chargestock oil is first contacted with a highly active homogeneous hydrogenation catalyst to effect the hydrogenation reaction so that macromolecular radicals of the residue (the precursor of coke) form as less as possible, thereby decreasing the output of coke in the hydrocracking of the residue; when the reaction proceeds to a certain extent, a solid powder is added to adsorb the macromolecular radicals of the residue formed during the reaction and lower their reaction activity, thereby preventing them from further condensing to coke and/or depositing due to polymerization. The synergetic action of the two sorts of substances makes it possible to produce substantively no coke or less coke during the hydrogenation of residue in a suspension bed and prolong the operation lifetime of the unit.

Process for hydroconverting a heavy hydrocarbon chargestock

Growing community of inventors

Liaoning, China

Zhaoming Han