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Catalyst for fatty monoolefin hydrogenation saturation, and its preparing method and use

A catalyst and monoolefin technology, applied in the direction of addition of unsaturated hydrocarbons to hydrocarbons, etc., can solve the problems of poor catalyst strength and other problems, and achieve the effect of low octane number reduction rate and less side reactions

Inactive Publication Date: 2005-10-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In U.S. Patent U.S.P 6037510, Al 2 o 3 , SiO 2 , ZrO 2 It is a catalyst with a mixed carrier containing more than 50% NiO. The catalyst preparation method adopts coprecipitation method, and the catalyst strength is poor. It is used for hydrogenation and saturation of aliphatic monoolefins.

Method used

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  • Catalyst for fatty monoolefin hydrogenation saturation, and its preparing method and use
  • Catalyst for fatty monoolefin hydrogenation saturation, and its preparing method and use
  • Catalyst for fatty monoolefin hydrogenation saturation, and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 3.0g of strontium carbonate and add appropriate amount of water, add citric acid to dissolve, impregnate on 100g of alumina carrier containing 2.0% of silicon dioxide, age for more than 2 hours, dry, and roast at 350°C for 4 hours to obtain the carrier.

[0022] Add 14.5g of molybdenum trioxide and 4.3mL of phosphoric acid into an appropriate amount of water, heat to boil, then slowly add 8.2g of nickel carbonate and 10.5g of nickel nitrate, dissolve and impregnate on 100g of alumina carrier, age for more than 8 hours, and dry , Calcined at 450°C for 4 hours to obtain the finished catalyst A.

Embodiment 2

[0024] Take 3.0g of strontium carbonate and add appropriate amount of water, add citric acid to dissolve, impregnate on 100g of alumina carrier, age for more than 2 hours, dry, and roast at 450°C for 4 hours to obtain the carrier.

[0025] Add 20.5g of ammonium molybdate and 4.3mL of phosphoric acid into an appropriate amount of water, heat to boil, then slowly add 26.5g of nickel nitrate, 2.7g of potassium carbonate, and then add 6.2ml of nitric acid, dissolve and impregnate on 100g of alumina carrier, and age More than 8 hours, drying, and roasting at 400° C. for 4 hours to obtain the finished catalyst B.

Embodiment 3

[0027] Take 11.0g lithium carbonate, add appropriate amount of water, add citric acid to dissolve, impregnate 100g alumina carrier, age for more than 2 hours, dry, and roast at 500°C for 4 hours to obtain the carrier.

[0028] Add 18.8g of molybdenum trioxide and 4.9mL of phosphoric acid into an appropriate amount of water, heat to boil, then slowly add 9.2g of nickel carbonate, 16.5g of nickel nitrate, 2.7g of potassium carbonate, dissolve, then add 3.0g of boric acid, dissolve and impregnate to 100g On the alumina carrier, aging for more than 8 hours, drying, and calcination at 500° C. for 4 hours, the finished catalyst C was obtained.

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Abstract

The catalyst for aliphatic mono-olefine hydrosaturation catalyst is formed from active component and carrier, in which active component comprises (wt%) Mo2O3 5-20%, NiO 4-15% and X1 1-5%, in which X1 is one or several kinds selected from B, P and Si, besides, it also can include adjuvant X2, the weight percentage content of X2 is 0-5%, and its carrier is active alumina. Said catalyst is applicable to hydrosaturation of C4-C20 fatty olefines, specially applicable to hydrosaturation of light olefines, such as ethylene, propylene and butylene oligomer gasoline to produce gasoline with high octane value. Its hydrogenation condition includes: temp. is 180-300 deg.C, pressure is 1.5-4.0 MPa, liquid hourly space velocity is 1.0-5.0 h(-1) and mole ratio of hydrogen and olefine is 1.5-2.5.

Description

technical field [0001] The present invention relates to a kind of catalyst that is used for aliphatic monoolefin hydrogenation saturation, is suitable for C 4 ~C 20 Hydrogenation of aliphatic olefins is especially suitable for hydrogenation of gasoline from oligomerization of light olefins such as ethylene, propylene, and butene. Background technique [0002] With the increasingly stringent environmental protection regulations, it is required to reduce the saturated vapor pressure of gasoline, reduce olefins, sulfur content, benzene, and aromatic compounds, increase the octane number, and move towards clean gasoline. Steam cracking, FCC, SC and other processes produce a large number of by-products of light hydrocarbons such as butene, ethylene, propylene, pentene, and oligomerization of light hydrocarbons to produce C 4 ~C 20 Aliphatic olefins are prone to polymerization, and gums are formed during storage. After hydrogenation and saturation, they can be used as high-qual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C2/08
Inventor 李斯琴梁顺琴刘根生钱颖
Owner PETROCHINA CO LTD
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