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Catalytic conversion method for biological oil and fat

A catalytic conversion method and bio-oil technology, which are applied in the field of catalytic conversion of bio-oil, can solve problems such as unreported olefin yield, and achieve the effects of sustainable economic development, high low-carbon olefin yield, and promotion of substitution

Active Publication Date: 2012-05-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the simulation calculation results, when a soybean oil is used as raw material, the reaction temperature is 565°C, the weight ratio of catalyst to raw oil is 10, and the mass ratio of steam to raw material is 0.1, the boiling point of the method is less than or equal to the total amount of C4 products. The productive rate is 50.8% by weight, and the productive rate of C2~C5 olefins has not been reported

Method used

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  • Catalytic conversion method for biological oil and fat
  • Catalytic conversion method for biological oil and fat
  • Catalytic conversion method for biological oil and fat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This example illustrates: adopting the method provided by the present invention, the result of the catalytic conversion of bio-oil in the riser reactor.

[0032] The composition of the catalyst used in Example 1 is as follows: based on the total weight of the catalyst, the content of the zeolite with the MFI structure and the modified beta zeolite are respectively 20% by weight, 10% by weight, and 20% by weight al 2 o 3 , 50% kaolin by weight. Among them, β zeolite is modified by phosphorus and Zn (P 2 o 5 and ZnO weight content were 1.5% and 1.6%).

[0033] The experiments were carried out on a medium-sized riser setup for continuous reaction-regeneration operation with an internal diameter of 16 mm and a height of 6 m.

[0034] The bio-oil raw material used in this example is palm oil, and the experiment adopts a single-pass operation mode. The regenerated catalyst with a temperature of about 700°C enters the bottom of the reaction section of the riser through t...

Embodiment 2

[0043] This example illustrates: adopting the method provided by the present invention, the catalytic conversion result of bio-oil in riser+fluidized bed reactor.

[0044] The composition of the catalyst used in Example 2 is as follows: based on the total weight of the catalyst, the content of the zeolite with MFI structure and the modified beta zeolite are respectively 10% by weight, 20% by weight, and 20% by weight Al 2 o 3 , 50% kaolin by weight. Among them, β zeolite is modified by phosphorus and Fe (P 2 o 5 and Fe 2 o 3 The weight content is respectively 2.0% and 1.8%).

[0045] The experiment was carried out on a medium-sized riser + fluidized bed unit with continuous reaction-regeneration operation. Wherein the inner diameter of the riser is 16 millimeters, and the height is 6 meters. Above the outlet of the riser is a fluidized bed, and the inner diameter of the fluidized bed is 64 millimeters, and the height is 0.3 meters.

[0046] The bio-oil raw material use...

Embodiment 3

[0049] This example illustrates: adopting the method provided by the present invention, the result of the catalytic conversion of bio-oil in the riser reactor.

[0050] The composition of the catalyst used in Example 3 is as follows: based on the total weight of the catalyst, the content of the zeolite with MFI structure and the modified beta zeolite are respectively 20% by weight, 10% by weight, and 20% by weight al 2 o 3 , 50% kaolin by weight. Among them, β zeolite was modified by phosphorus and Cu (P 2 o 5 and CuO weight content were 1.5% and 1.5%).

[0051] The bio-oil raw material used in this example is lard. The reaction device and main experimental steps used in the experiment are the same as those in Example 1. The main operating conditions and results are listed in Table 3.

[0052] As can be seen from Table 3, in the method of the present invention, the total yield of the C4 product with a boiling point of less than or equal to 55.78% by weight; wherein the yi...

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Abstract

A method for catalytically transforming bio-oil comprises the following steps: preheating bio-oil materials, injecting into a catalytic transformation reactor, contacting and reacting with a catalyst containing modified beta-zeolite, separating the reacted oil gas from the catalyst with carbon deposition, separating the reacted oil gas to obtain the target product containing low-carbon alkenes, processing the catalyst with carbon deposition by stripping and regenerating, and adding into the reactor for recycling. Compared with the prior art, the method can achieve higher yield of low-carbon alkenes. When selecting lard as the material and using riser and fluidized bed reactor, the method can obtain a product with a boiling point less than or equal to C4, wherein the total yield of the product is up to 61.43 wt percent, and the yields of ethylene, propylene and butylene are respectively 4.18wt percent, 23.11wt percent and 14.34wt percent.

Description

technical field [0001] The invention belongs to a method for catalytic conversion of bio-oil, more specifically, a method for preparing C2-C4 low-carbon olefins through catalytic conversion of bio-oil under the action of a catalyst. Background technique [0002] The main chemical components of biological oils such as animal and vegetable oils are triglycerides formed by higher fatty acids and free higher fatty acids. They mainly contain carbon, hydrogen, oxygen and traces of sulfur and nitrogen. sexual energy. At the same time, due to the continuous improvement of agricultural production technology, the output of bio-oil has increased rapidly, and the production cost has also dropped sharply thereupon. Take the production of vegetable oil through genetically modified technology as an example, its sales price is basically equivalent to that of fossil crude oil. With the massive consumption of fossil crude oil resources and decreasing reserves in recent years, the use of ren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00
Inventor 龙军李正谢朝钢朱根权汪燮卿舒兴田罗一斌杨义华
Owner CHINA PETROLEUM & CHEM CORP
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