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Method by catalyzing and hydrogenating animal and vegetable oil to produce high-quality diesel

A technology for catalytic hydrogenation of animal and vegetable fats and oils, which is applied in the fields of hydrogenation treatment process, preparation of liquid hydrocarbon mixture, petroleum industry, etc. It can solve the problems of raw material limitation, no freezing point of hydrogenation products, etc., and achieve the reduction of oxygen content, Strong resistance to water and the effect of extending the operating cycle

Active Publication Date: 2014-07-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no solution to the high freezing point of hydrogenation products has been proposed, and there are also certain restrictions on raw materials
[0017] U.S. Patent US20060186020, European Patent EP1693432, and Brazil’s Hydrobrass are all blending vegetable oil on a diesel hydrotreating unit to improve the properties of diesel products, and do not involve separate processing technologies

Method used

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  • Method by catalyzing and hydrogenating animal and vegetable oil to produce high-quality diesel
  • Method by catalyzing and hydrogenating animal and vegetable oil to produce high-quality diesel
  • Method by catalyzing and hydrogenating animal and vegetable oil to produce high-quality diesel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] use figure 1 In the process flow shown, the raw material entering the hydro-upgrading unit includes not only the hydrotreated diesel fraction, but also the upgraded raw material outside the unit-catalytic cracking diesel.

[0047] The properties of the catalyst are listed in Table 1, wherein the hydrotreating catalyst FZC-41A is a supported oxidation state catalyst, which needs to be reduced with hydrogen before use to obtain a supported reduced metal catalyst, and the reduction of the catalyst is based on general knowledge in the field.

[0048] The animal and vegetable oil raw material used in the test is soybean oil. The properties of soybean oil and modified raw materials outside the device are listed in Table 2 and Table 3. The test conditions and test results are listed in Table 4-Table 6.

Embodiment 2

[0050] use figure 1 The process shown is different in that the raw material entering the hydro-upgrading unit does not include catalytic cracking diesel.

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Abstract

The invention discloses a method by catalyzing and hydrogenating animal and vegetable oil to produce high-quality diesel. Animal and vegetable oil is subjected to hydrodeoxygenation and olefin saturation reaction with the existence of hydrogen and catalyst, gas and generated water are separated from effluents of hydrogenation reaction, gas, diesel fraction and incompletely-converted fraction are obtained by distilling the liquid, the incompletely-converted fraction is circulated back to a hydrogenation treatment reactor, the diesel fraction enters a hydrogenation modified reactor after being mixed with an optional modified raw material to be subjected to the modified reaction with the existence of hydrogen and modified catalyst, and gas products, naphtha and diesel fraction are obtained through the separation and distilling. Compared with the prior art, the hydrogenation reaction, hydrogenation modified reaction and / or pour point depression reaction of the animal and vegetable oil can be carried out under a relatively tempered technique condition, and the method has the advantages such as wide range of raw materials, high quality of products, high yield of diesel and fewer byproducts.

Description

technical field [0001] The invention relates to a method for producing high-quality diesel oil by reacting animal and vegetable oils and fats in the presence of hydrogen and a catalyst, more specifically, a method for producing high-quality diesel oil through catalytic hydrogenation of animal and vegetable oils. Background technique [0002] Petroleum is the "blood" of industrial development. With the development of the economy, the demand for various petroleum products, especially motor fuel, is increasing year by year, requiring the world's crude oil extraction and petroleum refining capacity to increase year by year. However, petroleum is a non-renewable resource, and the sustainable exploitation time is limited. Coal is also an important source of energy, and its sustainable mining time is longer than that of oil, but its quantity is still limited, and it is also a non-renewable resource. Due to the limitation of the annual extraction of oil resources and other politica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00C10G67/02
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 张学辉曾榕辉黄新露刘涛关明华石友良孙士可崔哲李士才
Owner CHINA PETROLEUM & CHEM CORP
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