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Catalyst for the production of mtbe from a refinery carbon four fraction

A refinery carbon 4, catalyst technology, applied in molecular sieve catalyst, physical/chemical process catalyst, organic chemistry and other directions, can solve the problems of low catalytic activity, poor reusability, etc., to improve the load rate, reduce cost input, shorten preparation effect of time

Active Publication Date: 2017-05-24
ANHUI HAIDE PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction of isobutene and methanol to prepare MTBE requires the use of catalysts, while ordinary catalysts have the disadvantages of low catalytic activity and poor reusability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of refinery carbon four fraction produces MTBE catalyst, and preparation method is as follows:

[0023] (1) Evenly disperse 12g of platinum powder and 4g of citric acid in 50g of deionized water to make an impregnation solution;

[0024] (2) Dry 85g of ZSM-5 molecular sieve at 70-80°C for 12h, then add it to the impregnating solution prepared in step (1), mix well, ultrasonicate at 35-45°C for 15min, Microwave treatment for 25 minutes;

[0025] (3) Filter the solution treated in step (2), dry the filter residue at 100-110°C for 3 hours, then grind the filter residue finely, add 8g of alumina, mix well, add a small amount of deionized water for kneading, and then put the material into Extruded in the extruder, the molded catalyst was dried at 100-110°C for 3 hours, and finally calcined at 450°C for 3 hours and 650°C for 5 hours to obtain the target catalyst.

Embodiment 2

[0027] A kind of refinery carbon four fraction produces MTBE catalyst, and preparation method is as follows:

[0028] (1) 13g of platinum powder and 5g of tartaric acid are evenly dispersed in 55g of deionized water to make an impregnation solution;

[0029] (2) Dry 90g of ZSM-5 molecular sieve at 70-80°C for 12h, then add it to the impregnating solution prepared in step (1), mix well, ultrasonicate at 35-45°C for 15min, Microwave treatment for 25 minutes;

[0030] (3) Filter the solution treated in step (2), dry the filter residue at 100-110°C for 3 hours, then grind the filter residue finely, add 9g of alumina, mix well, add a small amount of deionized water for kneading, and then put the material into Extruded in the extruder, the molded catalyst was dried at 100-110°C for 3 hours, and finally calcined at 450°C for 3 hours and 650°C for 5 hours to obtain the target catalyst.

Embodiment 3

[0032] A kind of refinery carbon four fraction produces MTBE catalyst, and preparation method is as follows:

[0033] (1) 15g of nickel powder and 6g of citric acid are evenly dispersed in 60g of deionized water to make an impregnation solution;

[0034] (2) Dry 95g of ZSM-5 molecular sieve at 70-80°C for 12h, then add it to the impregnating solution prepared in step (1), mix well, ultrasonicate at 35-45°C for 15min, Microwave treatment for 25 minutes;

[0035] (3) Filter the solution treated in step (2), dry the filter residue at 100-110°C for 3 hours, then grind the filter residue finely, add 10g of alumina, mix well, add a small amount of deionized water for kneading, and then put the material into Extruded in the extruder, the molded catalyst was dried at 100-110°C for 3 hours, and finally calcined at 450°C for 3 hours and 650°C for 5 hours to obtain the target catalyst.

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PUM

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Abstract

The invention discloses a catalyst for producing MTBE (Methyl Tert-Butyl Ether) by virtue of C4 fractions in a refinery plant, and relates to the technical field of catalyst synthesis. A ZSM-5 zeolite molecular sieve serves as a carrier, platinum or nickel serves as an active ingredient, alumina, titanium dioxide, zinc oxide or zirconia serves as an adhesive, citric acid, tartaric acid, hydrochloric acid, oxalic acid, lactic acid or trichloroacetic acid serves as a competitive adsorbent, and the catalyst is prepared by an ultrasonic-microwave impregnation method. According to the catalyst, by the microporous structure of the ZSM-5 zeolite molecular sieve, the load ratio of the active ingredient can be increased, and the obtained catalyst has high selective catalytic performance; the ultrasonic-microwave impregnation method is used, so that the load ratio of the active ingredient can be increased, and time for preparing the catalyst is shortened.

Description

[0001] Technical field: [0002] The invention relates to the technical field of catalyst synthesis, in particular to a catalyst for producing MTBE from carbon four fractions in a refinery. [0003] Background technique: [0004] At present, carbon tetrahydrocarbons are mainly used as industrial and civil fuels. But in recent years, due to the continuous rise of crude oil prices, the economics of selling this resource as a common fuel is worth considering. According to reports, my country's utilization rate of carbon four fractions is 16%, which is far lower than that of foreign countries. Since my country's West-to-East Gas Pipeline was officially opened in 2004, more than ten provinces and cities across the country have started to use natural gas, so that part of the C4 fraction originally used as fuel has been replaced by natural gas, creating a new environment for the effective use of C4 resources. conditions. Therefore, it is of great significance to expand the chemical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/44B01J29/46C07C43/04C07C41/06
Inventor 黄帮义
Owner ANHUI HAIDE PETROCHEM
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