Gas-liquid distributor capable of reducing catalyst skimming and hydrogenation process

Abstract

The invention provides a gas-liquid distributor capable of reducing catalyst skimming and a hydrogenation process. According to the invention, a scale depositing basket penetrating a whole catalyst bed is employed; the middle part and the bottom of the scale depositing basket are respectively provided with a separator plate; an overflow pipe is welded on the separator plate on the bottom, a pressure rupture disk is mounted on the top of the overflow pipe, and the bottom of the overflow pipe penetrates the separator plate to be communicated with the subjacent catalyst bed; the top of an overflow pipe on the middle part penetrates a gas-liquid distribution disc. When the upper part / lower part of the catalyst bed has a great pressure drop, the pressure rupture disk on the top of the overflow pipe at the upper part / lower part ruptures under the action of pressure difference, and a gas-liquid material flow can continue flowing downwardly to participate in a hydrogenation reaction. According to the method provided by the invention, great improvement of a conventional apparatus is not needed, long-period running of the apparatus can be realized with small investment, a catalyst in the whole bed can be fully utilized, the pressure drop in a reactor can be reduced at the same time, production safety is guaranteed, and economic benefits are increased.

Description

technical field [0001] The invention relates to a gas-liquid distributor for reducing catalyst skimming and a hydrogenation process, belonging to the technical field of petrochemical industry. Background technique [0002] In recent years, due to the increasing scarcity of petroleum resources worldwide and the increasing demand for energy in various countries, people have paid more and more attention to the utilization of residual oil. As a kind of decarbonization technology, residual oil coking process has the advantages of low investment and low operating cost, so it has been widely developed. [0003] Coking distillate oil (coking naphtha, coking diesel oil, coking wax oil) has high olefin content, high content of sulfur, nitrogen, silicon and other heteroatoms, and poor stability. It cannot be used directly as a product, or even directly as a feed for downstream devices. In order to make the coker distillate meet the end product standard or meet the feed requirements of...

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Problems solved by technology

But this method needs to add a reactor, and the operation is complicated

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