Beijing Huashi United Energy Technology and Development Co., Ltd.

Chuntao Li

Lin Li

Ke Lin

Lixin Guo

A cold-wall reactor for suspension-bed hydrogenation includes a reactor body including a reaction product outlet, cold hydrogen gas inlet and feed inlet. The reactor body includes a housing, surfacing layer and thermal insulation liner. An inner lining cylinder is fixedly arranged inside the reactor body with an outlet connected with the reaction product outlet. A side wall of the inner lining cylinder and an inner side wall of the reactor body define a cavity serving as a first circulation channel. A second circulation channel is arranged on the inner lining cylinder side wall. The inner lining cylinder communicates with the first circulation channel through the second circulation channel. In suspension-bed hydrogenation, material temperature is more uniform, reaction efficiency is improved, materials coking is reduced, thermal insulation liner issues are prevented, and the temperature of the outer wall of the reactor body is lower than the temperature of the medium.

Cold-wall reactor for suspension-bed hydrogenation

A suspended-bed hydrogenation catalyst and a regeneration method are disclosed. A composite support comprises a semi-coke pore-expanding material, a molecular sieve and a spent catalytic cracking catalyst. The hydrogenation catalyst for heavy oil is obtained through mixing the semi-coke pore-expanding material, the molecular sieve and the spent catalytic cracking catalyst, followed by molding, calcining and activating, and then loading an active metal oxide to the composite support. According to the composite support, a macropore, mesopore and micropore uniformly-distributed structure is formed, so that full contact between all ingredients in the heavy oil and active ingredients in a hydrogenation process is facilitated, and the conversion ratio of the heavy oil is increased. The hydrogenation catalyst integrates adsorption, cracking and hydrogenation properties. According to a regeneration method, the loading performance of an active-metal-loaded support in a spent hydrogenation catalyst cannot be destroyed.

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Beijing, China

Chuntao Li