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Hydrogenation process for reducing catalyst skimming

A process method and catalyst technology, applied in the fields of hydrotreating process, petroleum industry, hydrocarbon oil treatment, etc., can solve problems such as complex operation, achieve the effects of improving economic benefits, ensuring production safety, and simple methods

Active Publication Date: 2015-02-18
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Hydrogenation process for reducing catalyst skimming

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Embodiment 1

[0038] FHRS-1 (hydrogenation silicon scavenger), FZC-102B (hydrogenation protection agent) and FH-40C (main hydrorefining catalyst) developed and produced by Fushun Petrochemical Research Institute are used. according to figure 1 As shown in the schematic structure, the reactor is equipped with two catalyst beds, the first catalyst bed is filled with FHRS-1, and the long center pipe on the gas-liquid distribution plate extends downward to the middle partition of the fouling basket of the catalyst bed. The second catalyst bed is filled with FZC-102B and FH-40C. The properties of raw oil are shown in Table 1, and the process conditions and product properties after 100 days of operation are shown in Table 2.

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Abstract

The invention provides a hydrogenation process for reducing catalyst skimming. According to the invention, a fixed bed reactor is used; 2 to 5 beds are arranged in the fixed bed reactor; a top bed is provided with a scale depositing basket penetrating the top bed; the middle part and the bottom of the scale depositing basket are respectively provided with a separator plate; each separator plate is welded with an overflow pipe; and a pressure rupture disk is hermetically mounted on the top of each overflow pipe. When the upper part / lower part of the catalyst beds 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 process 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 beds can be fully utilized, the pressure drop in the 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 hydrogenation process method for reducing catalyst skimming, which belongs 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 downstream units,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/02C10G65/04
Inventor 王喜彬刘建宇曾榕辉刘忠信孙万付
Owner CHINA PETROLEUM & CHEM CORP
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