Method for preparing copper-based catalyst carrier

A technology of copper-based catalysts and carriers, which is applied in the direction of catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effects of simple preparation process, reduced energy consumption, and short reaction time

Active Publication Date: 2014-09-03
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However in SO3 2- As a reducing agent, it is not satisfactory just by changing the reaction conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 20g of 200-mesh distiller's grains, carbonize with 80g of mixed acid at 20°C for 2 hours, the ratio of concentrated sulfuric acid to concentrated nitric acid is 10:1, wash to pH=7 after carbonization, and activate by chemical method. The activator is KOH, KOH and The mass ratio of distiller's grains is 3:1, the activation temperature is 600°C, the activation time is 1h, washed to pH = 7, washed with 2mol / L dilute hydrochloric acid to pH = 7, and dried in an oven at 100°C to obtain copper-based Catalyst carrier.

Embodiment 2

[0024] Weigh 20g of 300-mesh distiller's grains, carbonize with 160g of mixed acid at 80°C for 12 hours, the ratio of concentrated sulfuric acid to concentrated nitric acid is 20:1, wash to pH=7 after carbonization, and activate by chemical method. The activator is KOH, KOH and The mass ratio of distiller's grains is 4:1, the activation temperature is 800°C, the activation time is 3h, washed to pH = 7, washed with 2mol / L dilute hydrochloric acid to pH = 7, dried in an oven at 110°C to obtain copper-based Catalyst carrier.

Embodiment 3

[0026] Weigh 20g of 250-mesh distiller's grains, carbonize with 100g of mixed acid at 50°C for 126h, the ratio of concentrated sulfuric acid to concentrated nitric acid is 12:1, wash to pH=7 after carbonization, and activate by chemical method. The activator is KOH, KOH and The mass ratio of distiller's grains is 3:1, the activation temperature is 700°C, the activation time is 2h, washed to pH = 7, washed with 2mol / L dilute hydrochloric acid to pH = 7, dried in an oven at 120°C to obtain copper-based Catalyst carrier.

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Abstract

The invention relates to a method for preparing a copper-based catalyst carrier. The method comprises the following steps: taking crushed plant-based raw materials, carbonizing the plant-based raw materials by use of mixed acid at 20-80 DEG C for 2-12 hours so as to obtain a carbonized material; washing the carbonized material with deionized water until the pH value is equal to 7, and activating to obtain the activated carbon; washing the activated carbon with 2mol / L hydrochloric acid until the pH value is equal to 7, placing in a drying oven and drying at 100-120 DEG C to obtain the final product. In the process for preparing the activated carbon disclosed by the invention, a mixed acid charring method is adopted, so that the reaction time is shortened, the production efficiency of an organic silicon monomer is improved, and the method has the advantages of water and energy conservation, reduced energy consumption, simple preparation process, convenience and effectiveness; the obtained carrier has excellent microscopic physical properties and the active ingredients of the catalyst prepared from the carrier have good dispersity and thus the hard agglomeration of the formed powder is avoided.

Description

technical field [0001] The invention relates to a catalyst, in particular to a method for preparing a copper-based catalyst carrier. Background technique [0002] Activated carbon is a kind of adsorption material with highly developed pore structure and large specific surface area. The raw materials for the preparation of activated carbon are mainly divided into two categories: plant and mineral. Plants mainly include: wood, coconut shell, apricot core, etc.; minerals include: coal, petroleum coke, synthetic resin, etc. The general preparation method of activated carbon mainly goes through two steps of carbonization and activation. The purpose of carbonization is to obtain initial voids suitable for activation and carbonized materials with certain mechanical strength. At present, the general carbonization method is to conduct heat treatment under nitrogen protection. Due to the long carbonization time and high carbonization temperature, the energy consumption is very large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08B01J32/00C01B32/312C01B32/324C01B32/336C01B32/342C01B32/348
Inventor 王广建张路平焦冲曹永刚
Owner QINGDAO UNIV OF SCI & TECH
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