• 迪宝催化剂

    迪宝催化剂

  • 迪宝催化剂

    迪宝催化剂

  • 迪宝

    迪宝

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News Detail

Improved method of Low-temperature Shift Catalyst

Classification:
Catalyst News
Release time:
2021/10/11 14:04
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Low-temperature Shift Catalyst is used in the synthesis of ammonia and hydrogen industry, in the process where carbon monoxide and water react to produce hydrogen and carbon dioxide. As far as the current situation is concerned, most industries in most countries use copper-based carbon monoxide catalysts, and most of the preparation methods of the catalysts are prepared by using a copper nitrate solution and a precipitating agent, but there are still impurities in the production process. Or the temperature is difficult to control. In order to further improve the purity of the catalyst and improve the production quality, the improvement method of Low-temperature Shift Catalyst is discussed.

Low-temperature Shift Catalyst

The novel copper-based carbon monoxide shift catalyst and its preparation process belong to the technical field of inorganic chemical industry, and specifically relates to a copper-zinc-aluminum carbon monoxide shift catalyst. There are usually two types of existing carbon monoxide shift catalysts, namely, iron-based carbon monoxide high-temperature shift catalyst and Low-temperature Shift Catalyst.

In the extraction process of the catalyst, many conditions are required, and many conditions are restricted, which leads to the problems of impurities and low purity in the refined catalyst, which affects the function of the catalyst and is not suitable for application. For example, in the synthesis and extraction of copper-zinc-aluminum catalysts, it is easy to form aluminum hydroxide gel. The catalyst proposed in the US patent using copper and zinc precipitation and extraction will not have gels, but the precipitation is greatly affected by temperature. , It is not easy to control temperature conditions. In addition, the catalyst produced in this way is only suitable for low-temperature shifting, and has poor activity under low vapor-to-gas ratio conditions, and the presence of Na ions during the production process increases the amount of washing water and the burden of environmental treatment. Chemical production It has brought considerable pressure to environmental pollution. Therefore, in the process of improving the catalyst, the production of harmful pollutants should be avoided as much as possible to reduce environmental pollution. This is also one of the purposes of improving the catalyst.

In the chemical reaction, the catalyst greatly reduces the time of the chemical reaction and improves the production efficiency. Today, with the large-scale industrial development, the demand for the catalyst has also been greatly increased, so the amount of catalyst raw materials has also greatly increased. The catalysts are mostly minerals, and as a non-renewable resource, the amount of ore is large, but the quantity is small. After decades of excavation and mining, the storage of copper-based catalysts is becoming less and less, and the supply exceeds demand, and the price of copper is also followed. Increase. The less impurity the catalyst has, the greater the effect, and the higher the purity of the catalyst, the higher the cost. From this point of view, the price of copper will gradually increase. In order to meet the needs of the market and improve the development of science and technology, it needs to be accelerated. Discussed the improvement plan of Low-temperature Shift Catalyst in order to reduce the cost of the catalyst.
 

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