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A kind of synthetic oil production method and a kind of synthetic oil production system

A production method and synthetic oil technology, applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, sustainable manufacturing/processing, etc., can solve the problems affecting the industrialization process of F-T synthesis process, low utilization rate of carbon atoms, high energy consumption, etc.

Active Publication Date: 2021-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main problems of above-mentioned technology are: 1, energy consumption is high, carbon atom utilization rate is low; 2, carbon dioxide emission is 5-6 times of traditional petroleum route; chain growth according to exponentially decreasing molar distribution), and is subject to the large amount of methane and carbon dioxide generated by the strong exothermic reaction, the overall energy efficiency of the process is low, which seriously affects the industrialization process of the F-T synthesis process
The large amount of cooling water and sewage discharged from the coal gasification process make the water consumption remain high

Method used

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  • A kind of synthetic oil production method and a kind of synthetic oil production system
  • A kind of synthetic oil production method and a kind of synthetic oil production system
  • A kind of synthetic oil production method and a kind of synthetic oil production system

Examples

Experimental program
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Effect test

preparation example 1

[0148] (1) Preparation of carrier

[0149] Dissolve zirconium nitrate pentahydrate in 75g deionized water to make a modified zirconium solution, add 100.0g gamma-Al to the modified zirconium solution 2 o 3 (Its property parameter is listed in table 1), in 25 ℃ saturated impregnation 2 hours. Then, the impregnated mixture was placed in an oven, and dried in an air atmosphere at 120° C. and normal pressure (1 standard atmospheric pressure, the same below) for 5 hours. The dried material was calcined in an air atmosphere at 400° C. for 3 hours to obtain a carrier. The prepared carrier was analyzed by X-ray fluorescence spectrometry, and it was determined that the content of Zr was 6% by weight based on the total amount of the carrier and in terms of elements.

[0150] (2) Preparation of catalyst precursor

[0151] Add ferric ammonium citrate to 17 mL of deionized water, heat, stir and mix in a water bath at 50°C to obtain an impregnation solution. Add 24 g of carrier to the ...

preparation example 2

[0157] Adopt the same method as preparation example 1 to prepare catalyst and prepare synthetic oil, the difference is, in step (1), gamma-Al 2 o 3 After roasting at 980°C for 2 hours, add it to the dipping solution. Among them, the roasted product was subjected to X-ray diffraction analysis, and it was determined that the θ-Al 2 o 3 , and its properties are listed in Table 1.

preparation example 3

[0159] Adopt the method identical with preparation example 1 to prepare catalyst and prepare synthetic oil, difference is, do not carry out step (1), gamma-Al 2 o 3 Directly used in step (2) to prepare catalyst precursor.

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Abstract

The invention discloses a production method and production system of synthetic oil. The preparation method comprises contacting methane with water under steam reforming reaction conditions to obtain steam reformed into gas; , methane is contacted with carbon dioxide to obtain dry weight integrated gas; water vapor recombined gas and dry weight integrated gas are mixed to prepare the feed for Fischer-Tropsch synthesis reaction, and the feed for Fischer-Tropsch synthesis reaction is produced The synthetic oil is contacted with the Fischer-Tropsch synthesis catalyst at the reaction temperature to obtain a Fischer-Tropsch synthesis product stream, the methane and carbon dioxide in the Fischer-Tropsch synthesis product stream are separated, and the methane is sent to the steam reforming step and / or the dry reforming step , sending carbon dioxide to the dry reforming step. According to the production method of the synthetic oil of the present invention, the energy consumption of the system and the emission of greenhouse gases (such as carbon dioxide) can be effectively reduced.

Description

technical field [0001] The invention relates to a method for producing synthetic oil, and also relates to a system for producing synthetic oil. Background technique [0002] my country's energy resources are rich in coal, rich in natural gas, and short of oil resources. The indirect conversion of coal or natural gas into clean and efficient liquid fuels through Fischer-Tropsch (F-T) synthesis is an important aspect of rational use of resources, which can alleviate the contradiction between my country's oil supply and demand. main technical approach. Coal-to-syngas direct-to-clean oil process first converts coal or natural gas into syngas (CO and H 2 ), and then directly make liquid fuel through F-T synthesis. The most important advantage of synthetic oil produced by F-T synthesis is that it does not contain non-ideal components such as sulfur, nitrogen and aromatics, and is a clean fuel that fully meets the strict requirements of modern engines and increasingly stringent en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G2/00
CPCC10G2/32Y02P30/00
Inventor 晋超吴玉张荣俊侯朝鹏孙霞阎振楠夏国富李明丰
Owner CHINA PETROLEUM & CHEM CORP