Hydrogen combined optimized utilization technology of hydrogenation apparatus

A technology of joint optimization and hydrogenation unit, applied in the fields of hydrotreating process, petroleum industry, processing of hydrocarbon oil, etc., can solve the problems of high equipment maintenance cost and equipment operation cost, large one-time investment, and many unit equipment, etc. The effect of reducing the amount and loss of lubricating oil of the unit, reducing the total investment, and reducing the amount and loss of lubricating oil

Active Publication Date: 2012-04-04
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing problems are that there are many equipments such as the circulating hydrogen compressor and the supplementary hydrogen compressor of the hydrogenation unit, the one-time investment is large, the energy consumption is high, the maintenance cost of the equipment and the operation cost of the equipment are high.

Method used

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  • Hydrogen combined optimized utilization technology of hydrogenation apparatus
  • Hydrogen combined optimized utilization technology of hydrogenation apparatus
  • Hydrogen combined optimized utilization technology of hydrogenation apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 2 As shown, a hydrogenation unit hydrogen joint optimal utilization process, for the hydrogen pressure from the hydrogen pipeline network is higher than the system pressure of the first reaction unit and the second reaction unit, between the hydrogen pipeline network and the first reaction unit 1 can be The supplementary hydrogen compressor is canceled, and the hydrogen from the hydrogen pipeline network 10 directly enters the first reaction unit 1 to carry out catalytic hydrogenation reaction with the raw material oil, and the remaining hydrogen enters the first cold high-resolution unit 3 for gas-liquid separation and is used as the second reaction unit 2 The supplementary hydrogen and the circulating hydrogen of the second cold high-resolution unit 4 are combined and processed by the hydrogen circulation unit 5, and then enter the second reaction unit 2 to carry out catalytic hydrogenation reaction with the raw material oil, and the remaining hydrogen ...

Embodiment 2

[0039] Such as image 3 As shown in Fig. 1, a joint optimized utilization process of hydrogen in a hydrogenation unit, when the pressure of hydrogen from the hydrogen pipeline network is lower than the system pressure of the first reaction unit and the second reaction unit, a hydrogen pipeline is set between the hydrogen pipeline network and the first reaction unit 1 There is a supplementary hydrogen compressor 61. The hydrogen from the supplementary hydrogen compressor 61 first passes through the first reaction unit 1 to carry out catalytic hydrogenation reaction with the raw material oil, and the remaining hydrogen enters the first cold high-resolution unit 3 for gas-liquid separation as the second reaction The supplementary hydrogen of unit 2 and the circulating hydrogen of the second cold high-resolution unit 4 are combined and processed by the hydrogen circulation unit 5, and then enter the second reaction unit 2 to carry out catalytic hydrogenation reaction with the raw m...

Embodiment 3

[0043] Such as Figure 4 As shown in the figure, a hydrogenation unit hydrogen combined optimal utilization process, when the hydrogen supply capacity of the first supplementary hydrogen unit 61 is greater than the hydrogen consumption of the first reaction unit 2, the first supplementary hydrogen unit 61 is divided into the first reaction unit 1 In addition to supplying hydrogen, hydrogen is also supplied to the second reaction unit 2 . The excess hydrogen from the first supplementary hydrogen unit 61 first passes through the first reaction unit 1 to carry out catalytic hydrogenation reaction with the raw material oil. After the reaction, the remaining hydrogen enters the first cold high-separation unit 3 for gas-liquid separation and then is separated with the second cold high-separation unit 3. The circulating hydrogen in unit 2 is processed by the hydrogen circulation unit and enters the second reaction unit 2 together with the hydrogen from the first supplementary hydroge...

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Abstract

The invention discloses a hydrogen combined optimized utilization technology of a hydrogenation apparatus. Excessive hydrogen from a hydrogen pipe net passes through a first reaction unit and conducts a catalysis hydrogenation reaction with raw oil; residual hydrogen enters a first cold-high pressure separating unit for gas-liquid separation, then mixes with cycling hydrogen from a second cold-high pressure separating unit, is treated by a hydrogen cycle unit and enters to a second reaction unit to conduct a catalysis hydrogenation reaction with raw oil; residual hydrogen enters into the second cold-high pressure separating unit for gas-liquid separation, merges with residual hydrogen from the first cold-high pressure separating unit, is treated by the hydrogen cycle unit and returns to the second reaction unit. According to the technology of the invention, two sets of hydrogenation apparatuses can share a new hydrogen machine or a hydrogen cycle compressor and part of pipes, so as to reduce equipment quantity and energy consumption of the new hydrogen compressor and the cycle hydrogen compressor, and realize small investment and low cost.

Description

technical field [0001] The invention relates to a hydrogen utilization process of a hydrogenation unit, in particular to a hydrogen joint optimization utilization process of a hydrogenation unit. Background technique [0002] The hydrogenation unit in the petrochemical industry mainly uses raw oil and hydrogen to carry out oil hydrogenation reaction under certain temperature and pressure conditions with the help of the hydrogenation catalyst in the hydrogenation reactor. The hydrogenation unit is mainly divided into two types according to the function: the hydrofinishing unit and the hydrocracking unit. The hydrofinishing unit is mainly a device for the purpose of hydrogenating raw oil to remove impurities, and the sulfur, nitrogen, oxides in the oil And heavy metals are converted into corresponding hydrocarbons and easy-to-remove H 2 S, NH 3 、H 2 O is removed, and the metals are trapped in the catalyst, while the olefins and aromatics in the oil are hydrogenated and satu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/04
Inventor 杨文德关志鹏钟东文杨庆伟陈远文谭达刚李坤黄晓文邓泽其
Owner CHINA PETROLEUM & CHEM CORP
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