Hydrogenation combined process

A combined process and hydrogen technology, applied in the fields of hydrotreating process, petroleum industry, hydrocarbon oil treatment, etc., can solve problems that have not been reported yet, and achieve the effects of saving device investment, reducing wear and reducing solid content

Inactive Publication Date: 2012-07-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, there is no report on the hydrogenation technology that uses both ebullating bed hydrogenation and suspension bed hydrogenation technology to treat heavy and residual oil.

Method used

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Embodiment Construction

[0031] Such as figure 1 As shown, when the heavy metal content of the heavy and residual oil in the refinery is less than 800 μg / g, the raw oil 10 is divided into two parts: one part is heated by the raw oil heating furnace 7, mixed with hydrogen heated by the hydrogen heating furnace 6, and then enters The ebullating bed reactor 1 is equipped with a catalyst adding system 24 and a catalyst discharging system 25 inside the ebullating bed reactor 1. After the other part is mixed with the suspension bed catalyst 23, it is heated by the raw material oil heating furnace 8 and then heated by the hydrogen heating furnace 6. The final hydrogen is mixed and then enters the suspended bed reactor 2.

[0032] The pressure of the ebullated bed reactor 1 is 8-20 MPa (gauge pressure), the temperature is 350-550° C., and the hydrogen-oil volume ratio is 500-1500. The pressure of the suspended bed reactor 2 is 8-20MPa (gauge pressure), the temperature is 350-550°C, and the volume ratio of hy...

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Abstract

The invention discloses a hydrogenation combined process, which includes: raw oil is divided into two parts, one part is heated and mixed with hydrogen and enters a fluidized bed reactor, the other part is mixed with a suspension bed catalyst, heated and then mixed with the hydrogen to enter a suspension bed reactor, reaction products of the fluidized bed reactor and reaction products of the suspension bed reactor enter a separating system to be separated, separated hydrogen serves as recycle hydrogen to be reused, separated light oil is discharged from a device, all separated heavy oil is discharged from the device, or a part of the heavy oil is circulated to the suspension bed reactor, and the other part of the heavy oil is discharged from the oil. The hydrogenation combined process can process high asphaltene, colloid, sulfur, high residual carbon, high metal heavy oil and high metal residual oil, and has the advantages of being simple in technological process, flexible to operate, strong in raw material adaptability, long in device operating cycle, low in investment and operating cost and the like.

Description

technical field [0001] The invention belongs to a combined hydrogenation process in the field of petrochemical industry. Specifically, the invention relates to a combined process of ebullating bed hydrogenation and suspension bed hydrogenation. Background technique [0002] With the trend of crude oil becoming heavier and inferior, the deep processing technology of heavy and residual oil with high asphaltene, colloid, sulfur, nitrogen, high carbon residue and high metal has become the focus and difficulty of petroleum resource utilization and development . At present, the most widely used and mature residual oil hydrogenation technology in industry is fixed-bed residual oil hydrogenation, but this technology has relatively strict requirements on raw material metals and carbon residues (such as heavy metal content less than 200 μg / g). For low-quality (high-sulfur, high-carbon, high-metal) residual oil, fixed-bed hydrogenation will encounter problems such as coking of the cat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00
Inventor 李立权程国良
Owner CHINA PETROLEUM & CHEM CORP
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