Mixed butane component selective hydrogenation catalyst and preparation method

A hydrogenation catalyst and a technology for mixing C4, which are used in catalyst activation/preparation, hydrocarbon production by hydrogenation, chemical instruments and methods, etc., can solve the problems of low yield, insufficient removal depth, and large loss of monobutene, etc. The effect of improving the removal depth, taking into account the activity and selectivity, and long life

Active Publication Date: 2019-05-17
华谊高新纯化技术(大连)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Palladium system catalysts have the characteristics of low operating temperature and few side reactions, but there are problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] a. Weigh 1000g CeCl 3 and 1000gZrCl 4 , prepare a 2L aqueous solution and an ammonia solution with a mass concentration of 0.33% to generate CeO by co-precipitation 2 -ZrO 2 mixture, washed CeO 2 -ZrO 2 until the mixture is free of Cl - 1150g CeO was made by drying at 120°C for 5h 2 -ZrO 2 mixture;

[0015] b. Take 400gCeO 2 -ZrO 2 , 500gγAl 2 o 3 and 100g of attapulgite, mixed evenly with a mixer and then extruded into 1 / 16" strips with an extruder, dried with water mist for 12 hours, and used N 2 The protection program heats up to 350°C and roasts to make a catalyst support carrier;

[0016] c. With 2.52gPdCl 2 , 34.36gMnCl 2 , 2ml of concentrated hydrochloric acid with a mass concentration of 37%, and 200ml of deionized water are heated and dissolved to make a mixed solution;

[0017] d. Take 500g of the catalyst support carrier prepared above, dip it in an equal volume mixed solution, let it stand for 1h, soak it with 500ml of glucose (reducing cataly...

Embodiment 2

[0033] a. Weigh 50gCeCl 3 and 80gZrCl 4 , prepare a 500ml aqueous solution and an ammonia solution with a mass concentration of 0.33% to generate CeO by co-precipitation 2 -ZrO 2 mixture, washed CeO 2 -ZrO 2 until the mixture is free of Cl - Dry at 120°C for 5 hours to make CeO 2 -ZrO 2 mixture;

[0034] b. Take 40gCeO 2 -ZrO 2 Mixture, 50gγAl 2 o 3 and 10g of attapulgite were mixed evenly and made into a 1.2mm spherical shape with a sugar coating machine, and dried after 24 hours of water mist preservation. 2 The protection program heats up to 500°C and roasts to make a catalyst support carrier;

[0035] c. With 0.35gPdCl 2 , 11.45gMnCl2, 0.5ml mass concentration 37% concentrated hydrochloric acid, 300ml deionized water are heated and dissolved to make a mixed solution;

[0036] d. Take 100g of the support carrier prepared above, soak it in an equal volume of mixed solution, let it stand for 2 hours, soak it with 1L of glucose (reducing catalyst) with a mass con...

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PUM

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Abstract

The invention discloses a mixed butane component selective hydrogenation catalyst and a preparation method. The mixed butane component selective hydrogenation catalyst comprises active components anda supporting carrier, wherein the active components are palladium and manganese, and the supporting carrier is a mixture of gammaAl2O3, CeO2-ZrO2 and attapulgite; the palladium accounts for 0.08-1.5%of the supporting carrier; the manganese accounts for 3-5% of the supporting carrier; and the mass ratio of the gammaAl2O3 to the CeO2-ZrO2 to the attapulgite is (50-60):(30-40):(10-20). The specificsurface area of the supporting carrier is 120-180 m<2>/g; the activity and selectivity of the catalyst are effectively taken into account; and the active ingredients Pd and Mn mutually act, so that the removal depth of butadiene, butane alkyne and vinyl acetylene is favorably improved and the yield of single butene is improved. Before the mixed butane component selective hydrogenation catalyst isused, activation is not required; the mechanical strength is high; and dusting is unlikely to happen. The mixed butane component selective hydrogenation catalyst has the advantages of convenience in use, long service life and the like and can be widely applied to large-scale industrial production.

Description

technical field [0001] The invention relates to a catalyst and a preparation method, in particular to a mixed carbon four-component selective hydrogenation catalyst capable of effectively increasing the yield of monobutene and a preparation method. Background technique [0002] Mixed carbon four is the general term for alkanes, monoolefins and diolefins, mainly derived from the torch gas containing vinyl acetylene produced by petroleum olefin cracking, coal chemical industry and carbon four extraction devices. Petroleum olefin cracking units mainly produce ethylene, and co-produce propylene and C4 fraction at the same time. The C4 fraction mainly produces MTBE and monobutene; coal chemical industry uses coal to produce methanol, and methanol produces olefins, ethylene and propylene, and at the same time produces some carbon Four products, its carbon four is used to produce products such as MTBE, monobutene and 2PH; while most of the torch gas containing vinyl acetylene is ev...

Claims

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Application Information

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IPC IPC(8): B01J23/656B01J37/03B01J37/02B01J23/10B01J35/10C07C5/05C07C11/08
Inventor 侯鹏李文强刘超杨瑞云赵艳东皮山丹张文刚
Owner 华谊高新纯化技术(大连)有限公司
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