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Combined hydrogenation method

A catalytic hydrogenation and jet fuel technology, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment, can solve the problems of low-concentration hydrogen loss, low temperature, unfavorable device heat utilization, etc., and achieve the change of gas-liquid The effect of balancing coefficient, increasing feed temperature, and improving deodorization effect

Inactive Publication Date: 2013-01-09
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, in this combined hydrogenation method, a large part of the hydrogen discharged from the hydrogenation unit is dissolved in the hydrogenated oil, resulting in the loss of low-concentration hydrogen; Conducive to the rational use of device heat

Method used

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  • Combined hydrogenation method

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Embodiment

[0021] The method and effect of the present invention will be further described below through the combined process of straight-run jet fuel hydrogenation deodorization device and diesel fraction hydrotreating.

[0022] See Table 1-1 for the straight-run jet fuel raw materials used, and Table 1-2 for the diesel raw materials. The catalyst is FH-UDS hydrotreating catalyst developed and produced by Fushun Petrochemical Research Institute (see Table 1-3 for main property indicators).

[0023] Table 1-1 Main properties of straight-run jet fuel raw materials.

[0024] Oil properties Straight run jet fuel raw material Density(20℃) / g.cm -3 0.7876 Distillation range / ℃ IBP / EBP 146 / 231 Sulfur / μg.g -1 1258 PhD test Mercaptan sulfur / μg.g -1 99.7

[0025] Table 1-2 Main properties of diesel raw materials.

[0026] project Diesel feedstock Density, g / cm 3 0.8486 Distillation range (ASTM D86), ℃ Distillation ...

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Abstract

The invention discloses a combined hydrogenation method. In the method, a straight run distillation jet fuel hydrogenation deodorization device and at least one set of hydrocarbon raw material catalytic hydrogenation device are adopted. Effluent of the hydrocarbon raw material catalytic hydrogenation device is gas-liquid separated through a thermal high-pressure separator, a cold high-pressure separator, a cold low-pressure separator and a thermal low-pressure separator, gas-phase substance flow separated through the thermal low-pressure separator and the cold low-pressure separator is mixed with straight-run jet fuel raw materials and passes through a catalytic bed under the condition of jet fuel hydrogenation deodorization, and reaction effluent is gas-liquid separated. A liquid phase is gas stripped or distilled to obtain refined jet fuel, and a gas phase is used as supplement hydrogen of the hydrocarbon raw material catalytic hydrogenation device. By means of the method, a hydrogen extraction device can be omitted, or the scale of the hydrogen extraction device is reduced, and simultaneously the heat of the device is used reasonably, a deodorization effect of the jet fuel is improved, and therefore investment and operation cost of the device are reduced, and benefit of enterprises is increased.

Description

technical field [0001] The invention relates to a comprehensive hydrogenation technology combining different hydrogenation devices, in particular to a comprehensive hydrogenation technology method combining an aviation coal hydrodemercaptan device and other hydrogenation devices. Background technique [0002] Hydrofining, hydrocracking and other process units discharge hydrogen with a concentration of 50% to 90% (the hydrogen concentration is calculated by volume, the same below) during the production process, and the quantity ranges from 20Nm 3 / t raw material ~100Nm 3 / t raw materials, those with high concentration can be directly used as industrial hydrogen in various hydrogenation processes, but those with low concentration need to be purified by physical methods before use. Since 1920, a variety of hydrogen enrichment methods have been developed in the world. The earliest industrial application is the cryogenic separation method, which is still used for the enrichment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00
Inventor 崔哲石友良曾榕辉吴子明王仲义
Owner CHINA PETROLEUM & CHEM CORP
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