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Method for hydroprocessing of renewable raw materials

A technology of hydrogenation treatment and regeneration of raw materials, which is applied in the direction of biofuel, fatty acid hydrogenation, fuel, etc., can solve the problems of uncontrollable ratio and high hydrogen consumption, and achieve the effect of reducing hydrogen consumption and improving freezing point

Inactive Publication Date: 2017-01-04
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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Problems solved by technology

[0005] However, the existing technology has the problem of high hydrogen consumption and the inability to control the proportion of alkanes with different carbon numbers in the hydrogenation product.

Method used

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  • Method for hydroprocessing of renewable raw materials
  • Method for hydroprocessing of renewable raw materials

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Effect test

Embodiment 1

[0037] The raw material oil is palm oil, and its properties are shown in Table 1. Using the method provided by the invention, after palm oil is fully mixed with hydrogen and water, it enters the hydroprocessing reactor and reacts with the hydroprocessing catalyst in the sulfide state to obtain the hydroprocessing reaction product. Wherein, based on palm oil, the mass content of water entering the hydroprocessing reactor is 8%. Before the palm oil enters the hydroprocessing reactor, dimethyl disulfide is mixed. The concentration is 0.1% by weight. After the hydroprocessing reaction product is separated from gas and liquid, part of its liquid phase hydrocarbon products is recycled back to the inlet of the hydroprocessing reactor, and the remaining part is led out of the device.

[0038] The hydrogenation reaction conditions are shown in Table 2, and the product distribution and properties are shown in Table 3.

Embodiment 2

[0040] Algae oil is used as the raw material oil, and its properties are shown in Table 1. Using the method provided by the invention, after the waste catering oil is fully mixed with hydrogen and water, it enters the hydrotreating reactor and reacts with the hydrotreating catalyst in the sulfide state to obtain hydrotreating reaction product. Wherein, based on waste catering oil, the mass content of water entering the hydroprocessing reactor is 7%. As a standard, the sulfur concentration is 0.1% by weight. After the hydroprocessing reaction product is separated from gas and liquid, part of its liquid phase hydrocarbon products is recycled back to the inlet of the hydroprocessing reactor, and the remaining part is led out of the device.

[0041] The hydrogenation reaction conditions are shown in Table 2, and the product distribution and properties are shown in Table 3.

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Abstract

Provided is a method for hydroprocessing of renewable raw materials. After being mixed with hydrogen and water, vegetable oil and / or animal fat contact(s) with a vulcanized hydroprocessing catalyst to react to obtain a hydroprocessing reaction product, the hydroprocessing reaction product undergoes gas-liquid separation to obtain a liquid phase hydrocarbon product, gas phase material flow and water, and part of liquid phase hydrocarbon product performs circulation to a hydroprocessing reactor inlet. By adoption of the method, hydrogen consumption can be reduced, the obtained hydroprocessing reaction product contains part of isomerized alkane, and a condensation point of biodiesel can be improved obviously.

Description

technical field [0001] The invention relates to a method for processing renewable raw materials in the presence of hydrogen. Background technique [0002] With the tightening of traditional fossil energy supply and increasing pressure to reduce carbon dioxide emissions, the development of renewable and clean alternative energy has become a global consensus. Due to its renewable and green nature, bioenergy has received special attention in recent years and is considered to be one of the most ideal ways to solve the global energy crisis. [0003] As the demand for jet fuel continues to increase, the technology to prepare jet fuel from renewable raw materials is gaining more and more attention. These renewable raw materials include, but are not limited to, vegetable oils (soybean oil, rapeseed oil, palm oil, jatropha oil, tallow oil), animal fats (lard, tallow, fish oil), acidified oils, various fatty acids and acidified oils. [0004] At present, there are many studies on t...

Claims

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Application Information

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IPC IPC(8): C11C3/12C10L1/02
CPCY02E50/10
Inventor 王鲁强郭庆洲渠红亮高晓冬高杰李洪宝夏国富
Owner CHINA PETROLEUM & CHEM CORP
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