Unlock instant, AI-driven research and patent intelligence for your innovation.

Olefin etherification catalyst and its preparation and use

A technology of catalyst and olefin ether, which is applied in ether preparation, physical/chemical process catalyst, unsaturated compound addition to prepare ether, etc. It can solve the problems of poor heat resistance, achieve simple preparation method, avoid separation difficulties, and reduce deactivation The effect of the rate

Active Publication Date: 2013-04-24
PETROCHINA CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This catalyst has the advantages of good stability, long life and high activity, but the carrier is still a cation exchange resin with poor heat resistance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of catalyst with catalyst zirconium content of 0.57%:

[0021] (1) Weigh 241.16 grams of Zr(NO 3 ) 4 ·5H 2 O and distilled water are made into a 10% aqueous solution; distilled water and ammonia water are made into a 20-50% ammonia solution by volume;

[0022] (2) Under continuous heating and stirring, Zr(NO 3 ) 4 ·5H 2 O aqueous solution and 8902.78 grams of silicon macrospheres are added to the reactor, and ammonia solution is added dropwise to the reactor to produce precipitation, and the temperature is controlled at 30-70°C to completely form the precipitation;

[0023] (3) After the precipitation is complete, the precipitate is repeatedly washed with deionized water until neutral, and then dried at 100-110° C. for 8-10 hours.

[0024] (4) immerse concentration again and be the ammonium sulfate solution of 50% (mass %), the time is 20-30 minutes until the solution can cover the solid matter.

[0025] (5) After taking out, dry at 100-110°C for 8-10...

Embodiment 2-5

[0028] It has the same steps as in Example 1, except that the raw material silicon macrospheres and zirconium nitrate added by the catalyst are different. The amounts of starting materials and the reaction results are listed in the table below.

[0029]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an olefin etherification catalyst and its preparation and use. The olefin etherification catalyst is prepared form big silicon balls as carriers and ZrO2 as an active component, wherein based on the weight of the big silicon ball as carriers, the content of zirconium in the active component is in a range of 0.3 to 0.7 wt%. The olefin etherification catalyst has the advantages of simple processes, high catalytic activity, good selectivity and high tertiary amyl methyl ether yield of 98.9%.

Description

Technical field: [0001] The invention relates to an olefin etherification catalyst and its preparation and application. Background technique: [0002] Methyl tert-amyl ether (TAME) is an excellent additive to increase the octane number of gasoline, and it is also an important part of new formula gasoline. TAME has the greatest environmental protection effect. It can convert some volatile C5 olefins in gasoline into steam Ether with very low pressure and clean combustion, the main synthesis route is to use catalytic cracking and pyrolysis of C in gasoline 5 The distillate is subjected to etherification reaction with methanol, and the key to the depth of the etherification reaction lies in the catalyst. A kind of etherification reaction catalyst is described in CN1348941, is to take acidic cation exchange resin as carrier, active component Pt, Ni, Pd, Co, Cu and co-catalyst are carried on the carrier, be used for etherification reaction and also play a role It has the functi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06C07C43/04C07C41/06
Inventor 石大川刘丽明赵英翠肖建业
Owner PETROCHINA CO LTD