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Unsaturated hydrocarbon hydrogenation catalyst, preparation method and applications thereof

A hydrogenation catalyst, unsaturated technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as incompatibility, improve distribution, reduce The effect of activation temperature and broadening of comprehensive utilization

Active Publication Date: 2011-10-19
THE NORTHWEST RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] None of the above catalysts are suitable for enriching CO and H 2 Full hydrogenation of ethylene, propylene, butene and other unsaturated hydrocarbons in various industrial tail gases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The weight percentage content of nickel oxide in the unsaturated hydrocarbon hydrogenation catalyst of the present embodiment is 8.0%, the weight percentage content of other metal oxides is 5.6%, the weight percentage content of auxiliary agent is 3.0%, and the balance is carrier; Metal oxides are cobalt oxide (3.6%) and iron oxide (2.0%), additives are magnesium oxide (2.4%) and lanthanum oxide (0.6%), and the carrier has a specific surface area of ​​130m 2 / g, a strip-shaped alumina carrier with a pore volume of 0.3mL / g.

[0031] Its preparation method is:

[0032] (1) Pretreatment of the carrier: at a temperature of 40°C, the specific surface area is 130m 2 / g, the bar-shaped aluminum oxide carrier with a pore volume of 0.3mL / g is soaked in dilute nitric acid or acetic acid with a mass concentration of 3% for 2.5h, and then the soaked carrier is washed to neutral with deionized water , and then dried in an oven at a temperature of 120°C;

[0033] (2) Preparation o...

Embodiment 2

[0037]The unsaturated hydrocarbon hydrogenation catalyst of this embodiment is the same as that of embodiment 1, wherein the difference is that other metal oxides are one or three of molybdenum oxide, cobalt oxide and iron oxide, or molybdenum oxide and cobalt oxide , or molybdenum oxide and iron oxide; additives are magnesium oxide and cerium oxide, or lanthanum oxide and cerium oxide, or magnesium oxide, lanthanum oxide and cerium oxide; the carrier used is titanium dioxide or titanium-aluminum composite oxide.

[0038] Its preparation method is with embodiment 1.

[0039] After the unsaturated hydrocarbon catalyst of this example was heat-resistant at 500°C for 3.5 hours, the hydrogenation activity, specific surface area and pore volume of the catalyst before and after heat resistance did not change significantly. target, tube pressure 40KV, tube flow 80mA) to analyze and measure the catalyst before and after heat resistance, the crystal phase of the catalyst has no obvious...

Embodiment 3

[0041] The weight percent content of nickel oxide in the unsaturated hydrocarbon hydrogenation catalyst of this embodiment is 10.0%, the weight percent content of other metal oxides is 1.0%, the weight percent content of auxiliary agent is 1.0%, and the balance is carrier; The metal oxide is molybdenum oxide, the additives are lanthanum oxide (0.5%) and cerium oxide (0.5%), and the carrier has a specific surface area of ​​280m 2 / g, granular titanium-aluminum composite oxide carrier with a pore volume of 0.6mL / g.

[0042] Its preparation method is:

[0043] (1) Pretreatment of the carrier: at a temperature of 30°C, the specific surface area is 280m 2 / g, the granular titanium-aluminum composite oxide carrier with a pore volume of 0.6mL / g is soaked in dilute nitric acid or acetic acid with a mass concentration of 2% for 3h, and then the soaked carrier is washed to neutral with deionized water, Then place the temperature in an oven at 110°C for drying;

[0044] (2) Preparatio...

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Abstract

The invention discloses an unsaturated hydrocarbon hydrogenation catalyst which comprises a carrier, an active component and an additive; the active component is a mixture of nickel oxides and other metal oxides; the additive is at least two out of magnesia oxide, lanthanum oxide and ceria; counted by weight percentage, the unsaturated hydrocarbon hydrogenation catalyst comprises 5-15% of nickel oxides, 1-10% of other metal oxides, 1-10% of additive and remaining quantity of carrier; and the metal oxide is one or more oxides out of molybdenum oxide, cobalt oxide and ferric oxide. The invention also discloses a preparation method and applications of the unsaturated hydrocarbon hydrogenation catalyst. The unsaturated hydrocarbon hydrogenation catalyst has the advantages of high hydrogenation precision, strong side effect resistance, good thermal stability, long service life and the like, can be used for processing tail gas in indirect coal oil production industrial and can be also used for processing unsaturated hydrocarbon in synthesis gas.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to an unsaturated hydrocarbon hydrogenation catalyst and its preparation method and application. Background technique [0002] In the process of indirect coal liquefaction, in addition to the production of oil, a part of the gas containing CO and OH will also be produced. 4 、H 2 , CO 2 and industrial tail gas such as unsaturated hydrocarbons. In addition, calcium carbide furnace gas, acetylene tail gas and coke oven gas also contain a certain amount of unsaturated hydrocarbons. Using it to produce methanol or synthetic ammonia, etc., not only comprehensively utilizes natural resources, but also reduces production costs, and is an ideal raw material route. [0003] Since industrial tail gas often contains a small amount of ethylene, propylene and butene, etc., it will affect the life of the catalyst in the subsequent process and product quality, so it needs to be re...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J23/887C07C9/06C07C9/08C07C9/10C07C5/03
Inventor 李速延周晓奇刘恩莉王志左满宏徐敏燕高超
Owner THE NORTHWEST RES INST OF CHEM IND
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