A low-carbon hydrocarbon fluidized bed aromatization device and its application

A carbon-hydrocarbon fluidized bed and aromatization reactor technology, which is applied in organic chemistry, hydrocarbon production from oxygen-containing organic compounds, and condensation hydrocarbon production with dehydrogenated hydrocarbons, etc., can solve problems such as poor economy and achieve production Low cost, reduced circulation, and the effect of facilitating the balanced utilization of heat

Active Publication Date: 2018-09-28
HUADIAN COAL IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw material of this invention is C3, C4, does not include C2, does not further aromatize and convert olefins into aromatics with high added value, and the economy is relatively poor

Method used

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  • A low-carbon hydrocarbon fluidized bed aromatization device and its application
  • A low-carbon hydrocarbon fluidized bed aromatization device and its application
  • A low-carbon hydrocarbon fluidized bed aromatization device and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] ZSM-5 molecular sieve, kaolin, and aluminum sol are formulated into a mixed slurry, and composite particles are obtained by spray granulation. The prepared composite particles are roasted in a horse boiling furnace at a specific temperature. The active metal mixed solution and the calcined composite particles are stirred, impregnated and dried, and then calcined at a specific temperature for several hours to obtain the final catalyst, which is a special catalyst for aromatization.

Embodiment 2

[0034] Weigh 880 g of the catalyst obtained in Example 1 and put it into the fluidized bed aromatization reactor 2 .

[0035] The mixed low-carbon hydrocarbons 12 with the composition and content shown in Table 1 enter the fluidized bed aromatization reactor 2 after being preheated by the raw material preheating furnace 1 to undergo aromatization reaction, and are separated by the aromatic hydrocarbon gas-liquid separator 3 to obtain The liquid phase is the aromatic product 16, and the obtained gas phase enters the pressure swing adsorption separator 4, where the hydrogen gas 14 is separated by adsorption, and the rest of the gas phase enters the absorption tower 5, and after being absorbed by the absorbent 13, it is divided into two paths, the top and the bottom. It is divided into two paths again, and the path containing only methane passes through the methane conversion reactor 6 and the methanol synthesis tower 7 to obtain a mixture containing methanol and non-condensable g...

Embodiment 3

[0039] The reaction temperature of whole device is 475 ℃, and others are all identical with embodiment 2.

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Abstract

The invention belongs to the technical field of producing arene from low-carbon hydrocarbon, and particularly relates to a low-carbon hydrocarbon fluidized bed aromatization device and application. The device is composed of a fluidized bed aromatization reactor, an arene gas-liquid separator, a methane conversion reactor, a methyl alcohol synthetic reactor, a gas-liquid separator, a methyl alcohol vaporizer and a dehydrogenation reactor. According to the aromatization method, production cost is low, aromatization conversion rate can reach 99.9%, and circulation is reduced.

Description

technical field [0001] The invention belongs to the technical field of producing aromatics from low-carbon hydrocarbons, and in particular relates to a low-carbon hydrocarbon fluidized-bed aromatization device and its application. Background technique [0002] At present, my country's petrochemical FCC, thermal cracking, delayed coking and other processes produce a large amount of cracked dry gas, and most of the cracked dry gas is used as fuel gas and civil liquefied gas after separation, which has low utilization value, pollutes the environment, and causes damage to resources. Great waste. With the improvement of oil refining capacity, the output of cracked dry gas is also increasing year by year; the rapid development of coal chemical technology, while producing the target product, is also accompanied by some refinery gas, and with the increase of the number of cycles in the system, the amount of dry gas Gradually increasing, inhibiting the progress of the main reaction, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/20C07C2/76C07C15/00
CPCC07C1/20C07C2/76C07C15/00Y02P30/20Y02P30/40
Inventor 罗腾发黄琳胡阳阳崔宇刘勋军黄晓凡惠兴育汤效平李涛王彤高长平梁彦鸿管春峰丁焕德
Owner HUADIAN COAL IND GRP
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