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Process for producing methanol-to-hydrocarbon-based fuel (MTHF)

A technology of hydrocarbon-based fuel and production process, which is applied in the direction of fuel, liquid carbon-containing fuel, petroleum industry, etc., can solve problems such as complex preparation process, and achieve the effect of promoting mutual solubility of alcohol and oil and improving product yield.

Inactive Publication Date: 2012-03-28
冯保运 +10
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of the fuel provided by the invention is excellent, but the preparation process is relatively complicated

Method used

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  • Process for producing methanol-to-hydrocarbon-based fuel (MTHF)
  • Process for producing methanol-to-hydrocarbon-based fuel (MTHF)
  • Process for producing methanol-to-hydrocarbon-based fuel (MTHF)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step (1) methanol gasification

[0057] Using refined methanol that meets the GB338 standard as the raw material, the raw methanol is boosted to 0.83MPa, then enters the preheater to preheat to 85°C, and then enters the gasification tower for gasification. The temperature of the obtained gaseous methanol is 126°C and the pressure is 0.80MPa.

[0058] The preparation of step (2) dimethyl ether

[0059] The gasified methanol obtained in step (1) is heated to 270°C through the inlet and outlet heat exchangers of the dimethyl ether reactor, and then it enters the top of the catalyst bed in the dimethyl ether reactor, from top to bottom The dehydration condensation reaction is carried out by setting three chilled catalyst beds. The catalyst used in the reaction is the CNM-3 catalyst developed by the Southwest Chemical Industry Research Institute and has been commercially produced. The reaction pressure is 0.8MPa, the hot spot temperature is 380°C, and the Speed ​​is 2.0h ...

Embodiment 2

[0073] Step (1) gasification of methanol, step (3) preparation of hydrocarbon components, step (4) cooling of hydrocarbonated products, and step (5) product separation are the same as in Example 1.

[0074] In the preparation of step (2) dimethyl ether, the vaporized methanol obtained in step (1) is heated to 250°C through the inlet and outlet heat exchangers of the dimethyl ether reactor, and then it enters the dimethyl ether reaction The top of the catalyst bed in the vessel passes through the three chilled catalyst beds from top to bottom to carry out the dehydration condensation reaction. The catalyst used in the reaction is the CNM-3 catalyst developed by the Southwest Chemical Industry Research Institute and has been commercially produced. The pressure is 0.7MPa, the hot spot temperature is 360°C, and the space velocity is 1.5h -1 , to obtain a reaction product mainly composed of dimethyl ether, which flows out from the bottom of the catalyst bed.

[0075] The above ste...

Embodiment 3

[0078] Step (1) gasification of methanol, step (3) preparation of hydrocarbon components, step (4) cooling of hydrocarbonated products, and step (5) product separation are the same as in Example 1.

[0079] In the preparation of step (2) dimethyl ether, the vaporized methanol obtained in step (1) is heated to 260°C through the inlet and outlet heat exchangers of the dimethyl ether reactor, and then it enters the dimethyl ether reaction The top of the catalyst bed in the vessel passes through the three chilled catalyst beds from top to bottom to carry out the dehydration condensation reaction. The catalyst used in the reaction is the CNM-3 catalyst developed by the Southwest Chemical Industry Research Institute and has been commercially produced. The pressure is 0.75MPa, the hot spot temperature is 370℃, and the space velocity is 1.75h -1 , to obtain a reaction product mainly composed of dimethyl ether, which flows out from the bottom of the catalyst bed.

[0080] The above st...

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Abstract

The invention relates to a process for producing a methanol-to-hydrocarbon-based fuel (MTHF), and belongs to the technical field of clean energy production processes. The hydrocarbon-based fuel is prepared by etherification and alkylation reaction of methanol, and a closed-path production process of the MTHF is innovatively realized. Compared with the prior art, the hydrocarbon-based fuel production process has the advantages of simplicity in equipment, low economic cost, short flow, safety in operation, environment friendliness, no pollution and high product yield; deep processing treatment such as hydrogenation, isomerization, fractionation and the like is not needed for the obtained product, and the product reaches the discharge standard of G (European) and G (European) IV clean gasoline, so the process belongs to a clean energy production process; and a solution is provided for the great subject of inevitable environmental pollution in chemical production so far, a good path is provided for solving the current energy crisis, and the process is suitable for large-scale industrialized popularization and application.

Description

technical field [0001] The invention relates to a production process of methanol-to-hydrocarbon-based fuel (MTHF), belonging to the technical field of clean energy production process. Background technique [0002] With the rapid development of the economy, the energy crisis and environmental pollution are becoming more and more serious. Among them, oil, the most important energy, is reserved or competed by various countries. At the same time, a large number of scientific researches are also carried out on alternative oil energy, such as solar energy and wind energy. The development and utilization of energy such as biomass energy and biomass energy, in order to achieve the same effect as gasoline, diesel and other petroleum products, and to effectively protect the environment, but in the actual application process, due to technical maturity, geological climate, regional economy and other conditions It is difficult to achieve the three-dimensional realization of all-round val...

Claims

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Application Information

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IPC IPC(8): C10G3/00C10L1/02C10L1/185C10L1/182
CPCY02P30/20
Inventor 冯保运
Owner 冯保运
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