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Superimposed oil hydrogenation system and method

A hydrogenation system and superimposed oil technology, which is applied in the fields of aromatics hydrorefining, petroleum industry, and hydrocarbon oil treatment, can solve problems such as complex structure and difficult maintenance, and achieve the effect of reducing energy consumption and olefin content

Inactive Publication Date: 2020-02-07
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0004] This application provides a superimposed oil hydrogenation system and method, which can solve the complex structure and difficult maintenance of the tube-and-tube reaction device in the related art, and the liquid separated by the gas-liquid separation tank will entrain part of hydrogen and hydrogen sulfide The problem of equal light components

Method used

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  • Superimposed oil hydrogenation system and method
  • Superimposed oil hydrogenation system and method
  • Superimposed oil hydrogenation system and method

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Embodiment

[0124] The composition of superimposed oil produced by oligomerization of isobutene in a refinery is shown in Table 2. The flow rate of superimposed oil is 10.0 tons / hour, and the annual processing capacity is 84,000 tons.

[0125] Table 2 Composite oil composition

[0126] composition quality score C 8 Olefin

[0127] In order to produce high-quality clean gasoline blending component isooctane oil without olefins, the hydrogenation method and device provided in the examples of this application are used to carry out hydrogenation saturation of the superimposed oil. The main operating conditions are shown in Table 3.

[0128] Table 3 main operating conditions

[0129]

[0130]

[0131] After hydrogenation, the composition of the hydrogenated product, i.e. isooctane oil, is shown in Table 4.

[0132] Table 4 Composition of isooctane oil

[0133] composition mass percentage C 8 alkanes

[0134] It can be seen from Table 4 that after t...

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Abstract

The invention discloses a superimposed oil hydrogenation system and method, and belongs to the technical field of petrochemical engineering. The method includes the steps that superimposed oil is mixed with hydrogen to obtain a first mixed material; the first mixed material is heated and then mixed with circulating hot oil to obtain a second mixed material; the second mixed material is heated andthen subjected to a catalytic hydrogenation reaction to obtain a hydrogenation product; the hydrogenation product is cooled and then separated to obtain a liquid-phase product and a gas-phase product;the gas-phase product is condensed and then separated to obtain hydrogen and an oil-phase product, the hydrogen is used for mixing with the superposition oil, part of the liquid-phase product is usedas the circulating hot oil, and part of the oil-phase product is used as circulating cold oil; and the oil-phase product is mixed with remaining part of the liquid-phase product to obtain a third mixed material, and the third mixed material is stripped to obtain a target hydrogenation product. According to the superimposed oil hydrogenation system and method, olefin in the superimposed oil can besaturated, and thus the olefin content cannot exceed the standard when the olefin is added into ethanol gasoline.

Description

technical field [0001] The present application relates to the field of petrochemical technology, in particular to a method and system for hydrogenation of superimposed oil. Background technique [0002] On September 7, 2017, the State Administration of Quality Supervision and the Standardization Management Committee issued and simultaneously implemented two standards: GB18351 "Ethanol Gasoline for Vehicles (E10)" and GB 22030 "Ethanol Gasoline Blending Component Oil for Vehicles", which clearly defined It is stipulated that in addition to ethanol, the content (mass fraction) of other organic oxygen-containing compounds in ethanol gasoline (E10) (VIB) for vehicles shall not exceed 0.5% and shall not be artificially added; on September 13, 2017, 15 ministries and commissions including the National Development and Reform Commission jointly issued the " The Notice on the Implementation Plan for Expanding the Production of Biofuel Ethanol and Promoting the Use of Ethanol Gasoline...

Claims

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Application Information

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IPC IPC(8): C10G45/30C10G45/02C10G45/44
CPCC10G45/02C10G45/30C10G45/44C10G2300/202
Inventor 刘成军李涛孙方宪吕晓东周璇段宏毅李倞琛张迎李宁
Owner BC P INC CHINA NAT PETROLEUM CORP
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