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Process for producing low carbon olefin and arene parallel cogeneration gasoline by using methanol as raw material

A technology of low-carbon olefins and methanol, which is applied in the field of olefins and aromatics to produce alkanes, can solve the problems of slow development of oil substitution strategy and huge investment, and achieve the effect of not harsh construction conditions, low investment, and low emissions

Inactive Publication Date: 2011-08-10
江苏煤化工程研究设计院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these demonstrations have undertaken the technical reserve of coal-based alternative energy for the country, due to the huge investment and intensive technology, only large state-owned enterprises can have the strength and ability to undertake it, which makes the development of my country's oil substitution strategy slow

Method used

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  • Process for producing low carbon olefin and arene parallel cogeneration gasoline by using methanol as raw material
  • Process for producing low carbon olefin and arene parallel cogeneration gasoline by using methanol as raw material
  • Process for producing low carbon olefin and arene parallel cogeneration gasoline by using methanol as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Put 15g of molecular sieve catalyst for methanol alkylation into a methanol alkylation reactor, control the pressure at 0.1-0.5MPa, and the temperature at 180-600°C, make the molar ratio of methanol and water into 2:1, and mix 50- Put 20g of molecular sieve catalyst (preferably 40-30g) for aromatization into the aromatization reactor, and feed 30-40ml of reactants per hour. After the reaction, the single-pass liquid yield in the liquid is greater than 50%, and the total liquid yield is greater than 70%. The content of each component in the liquid is shown in Table 1 below, and the main components in the gas are hydrogen, methane and ethane.

[0016] Table 1

[0017]

Embodiment 2

[0018] Example 2: Put 30g of molecular sieve catalyst for methanol alkylation into methanol alkylation reactor, control temperature 400-500°C, pressure 0-0.5MPa, alcohol-water molar ratio 1:1, liquid space velocity 1-2, react The post gas composition is shown in Table 2 below:

[0019] Table 2

[0020]

[0021] After the above-mentioned gas is separated, the C4 gas enters the reaction bed equipped with MTBE catalyst, the molar ratio of methanol and isobutene is 2:1, and the C4 composition is as follows in Table 3:

[0022] table 3

[0023] Butane, Isobutane

1-butene, 2-butene

Isobutylene

4.5～5.5％

50～53％

39～42

[0024] The reaction temperature is 70-200°C, the pressure is 0.15-1.0MPa, and the gas composition after the reaction is shown in Table 4 below:

[0025] Table 4

[0026] Methanol

C4 component

Isobutylene

24.1％

75.8％

＞0.1％

[0027] Carry out the aromatization reaction of the gas a...

Embodiment 3

[0030] Embodiment 3: regenerate after 500 hours with the molecular sieve catalyst operation of example 1 methanol alkylation, react by example 1, single-pass liquid yield 60.5%, liquid composition (100 hour average data) sees the following table 6:

[0031] Table 6

[0032] benzene

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Abstract

The invention discloses a process for producing low carbon olefin and arene parallel cogeneration gasoline by using methanol as a raw material. In the process, the methanol is used as the raw material and a molecular sieve catalyst is adopted to produce the low carbon olefin and arene parallel cogeneration gasoline by a methanol alkylation reaction and aromatization. In the process, the coal-based methanol is used as the raw material and can replace the conventional petroleum raw material to cogenerate a basis organic chemical raw material, and thus, the dependence degree of the conventional petrochemical industry on the petroleum can be reduced. Meanwhile, the process is also beneficial for reducing the foreign dependence degree of national petroleum, the strategic safety of energy and resources is improved, the production process of the process has low discharge, low pollution and low energy consumption, the requirements on green and environment protection are met, and the process has the advantages of low production cost and strong market competitiveness.

Description

technical field [0001] The invention belongs to the technical field of chemical production, and relates to a kind of high-efficiency carbon utilization rate, adopting more efficient catalytic reaction engineering means and methods, utilizing molecular design and modern engineering technology to implement low-carbon technology integration innovation to replace petrochemical technology The process, specifically relates to a process for producing alkanes, olefins and aromatics using methanol as a raw material. Background technique [0002] At present, in the post-petroleum era where global petroleum resources can no longer fully meet the rapid economic development, non-petroleum methanol to low-carbon olefins technology has emerged as the times require. MTO, MTP, NMTP, DMTO, and JMTO all have major breakthroughs. For the sake of national energy security, the National Development and Reform Commission has successively approved the demonstration of coal-to-oil direct method and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C07C11/08C07C11/06C07C15/08C07C11/04C07C1/20C07C15/06C07C15/04
CPCY02P30/20Y02P30/40
Inventor 方德巍刘述全洪正鹏庞治刘光明郭新宇周渊刘二明
Owner 江苏煤化工程研究设计院有限公司
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