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Methanation method of heavy hydrocarbon

A technology for heavy hydrocarbons and methane, applied in the petrochemical field, can solve the problems of large hydrogen consumption and high hydrogen source cost, and achieve the effect of reducing the value of residual carbon, reducing emissions and reducing the cost of refineries

Active Publication Date: 2015-12-23
SINOPEC ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first object of the present invention is to provide a method for adding methane to heavy hydrocarbons. The method for adding methane to heavy hydrocarbons overcomes the problems of large hydrogen consumption and high cost of hydrogen sources in the existing hydrogenation technology, and is also a new method. Appropriate pathways for comprehensive utilization of methane

Method used

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Examples

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Effect test

Embodiment 1

[0032] A method for adding methane to heavy hydrocarbons:

[0033] The raw material is Kuwait atmospheric residue, the reactor is a fixed bed, and the reaction conditions are as follows:

[0034] The reaction temperature is 450°C, the reaction pressure is 15Mpa, and the feed volume space velocity is 1.5h -1 , the volume ratio of methane to heavy hydrocarbons is 400, and the volume ratio of methane activation catalyst to hydrogenation catalyst is 1:200.

[0035] The hydrogenation catalyst is an atmospheric residue hydrogenation catalyst produced by Sinopec Fushun Petrochemical Research Institute. The methane activation catalyst carrier is alumina, the active component is molybdenum, and the mass percentage of the active component in the methane activation catalyst is 2%,

[0036] The properties of the Kuwaiti atmospheric residue are as follows:

[0037] Table 1 Kuwait Atmospheric Residue Property Data Table

[0038] raw material name

Embodiment 2

[0040] A method for adding methane to heavy hydrocarbons:

[0041] Using the same method as in Example 1, the difference is that the reaction temperature is 300°C, the reaction pressure is 2Mpa, and the feed volume space velocity is 0.5h -1 , the volume ratio of methane to heavy hydrocarbons is 300, the volume ratio of methane activation catalyst to hydrogenation catalyst is 1:10, the carrier of methane activation catalyst is silicon oxide, the active component is nickel, and the active component content is methane activation catalyst 1% of mass.

Embodiment 3

[0043] A method for adding methane to heavy hydrocarbons:

[0044]Using the same method as in Example 1, the difference is that the reaction temperature is 700°C, the reaction pressure is 28Mpa, and the feed volume space velocity is 4.5h -1 , the volume ratio of methane to heavy hydrocarbons is 5500, the volume ratio of methane activation catalyst to hydrogenation catalyst is 1:200, the carrier of methane activation catalyst is HZSM-5 molecular sieve, the active component is iron, and the active component content is methane Activate 25% of the mass of the catalyst.

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Abstract

The invention provides a methanation method of heavy hydrocarbon, and belongs to the technical field of petroleum chemical engineering. Under the conditions of methanation of heavy hydrocarbon, heavy hydrocarbons and methane are simultaneously filled into a heavy hydrocarbon methanation reactor, then the mixture is contacted with a methane activation catalyst and a hydrogenation catalyst in sequence; under the effect of the methane activation catalyst, the methane is cut into CH3. and H., a hydrogen source is provided for the post hydrogenation reactions, and the directional assembly of CH3. and H. can be realized. The provided methanation method of heavy hydrocarbon can provide hydrogen for hydrogenation reactions, at the same time, can remove most of impurity atoms such as sulfur, oxygen, nitrogen, metals, and the like in heavy oil, and reduces the carbon residue. Moreover, the directional assembly of CH3. can convert heavy oil into light oil products, and increase the H / C ratio.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to a method for adding methane to heavy hydrocarbons. Background technique [0002] In recent years, with the development of the petroleum industry and the continuous exploitation of petroleum resources, the trend of crude oil extracted in the world is becoming heavier, and the amount of sulfur-containing and high-sulfur crude oil, acid-containing and high-acid crude oil, and crude oil with high metal content is increasing , especially with the development and maturity of heavy and extra heavy crude oil mining and processing technology, this trend will become more obvious. In the consumption structure of petroleum products, the demand for light oil products and middle distillates is increasing year by year, the demand for heavy fuel oil is gradually decreasing, and the contradiction between supply and demand of conventional crude oil is becoming increasingly tense. In 2013, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G49/20
Inventor 宋业恒李康王龙延郝代军
Owner SINOPEC ENG GRP CO LTD
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