Preparation method of methanol synthesis catalyst
A technology for synthesizing methanol and catalysts, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve problems affecting the quality of catalyst products, uneven mixing of lubricants, and large material loss, etc., to achieve easy Achieve automation, improve labor productivity, and increase labor intensity
Active Publication Date: 2013-07-17
CHINA PETROCHEMICAL CORP +1
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Problems solved by technology
The main problems of this manufacturing process technology are: washing slurry by pouring method, high water consumption, high cost, easy to run out of material, resulting in large material loss and environmental pollution; adding lubricant after particle calcination, uneven lubricant mixing leads to slivers Many, difficult to shape, and ultimately affect the quality of the catalyst product; solid materials are handled manually during the production process, which is labor-intensive, low-efficiency, and easily causes dust pollution
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[0013] Use the method of the present invention to produce certain industrial sizing catalyst on pilot plant, and this catalyst main component is copper, zinc, aluminum metal salt, adopts horizontal spiral centrifuge to wash catalyst precursor, and washing effect is shown in Table 1.
[0014] Table 1 Washing effluent Cu 2＋ , Zn 2＋ 、Na 2 O content
[0015]
[0016] Compared with the pouring method, the horizontal spiral centrifugal washing can reduce the number of washings by more than 3 times, save more than 50% of water, and shorten the washing time by 70% under the same washing effect. The catalyst loss in the horizontal spiral centrifugal washing process can be controlled at about 1‰, while the pouring washing method is limited by conditions, and the catalyst loss is uncontrollable and fluctuates greatly.
[0017] Wash the prepared matrix with a horizontal screw centrifuge, beat with aluminum glue, and wash to obtain a filter cake. Before the spray-dried slurry is...
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Abstract
The invention provides a preparation method of a methanol synthesis catalyst, belongs to the technical field of catalysts, and in particular relates to a preparation method of a methanol synthesis catalyst with low bulk density. In the preparation method, a horizontal spiral centrifuge is adopted for washing and filtering, a lubricating agent is added to the spray drying granulation process, and the material is conveyed by means of airflow, which replaces the preparation procedures of the semi-finished material such as slurry washing by a dumping method, addition of the lubricating agent after calcination, manual handling and the like in the existing production process. Therefore, the preparation method has the beneficial effects of reducing the labor intensity, lowering the production cost and improving the continuous production operation degree of the catalyst. Compared with the catalyst obtained by the traditional method, the methanol synthesis catalyst obtained by the preparation method provided by the invention has the advantages of obviously lowered bulk density and improved strength.
Description
technical field [0001] The invention relates to a method for preparing a catalyst for synthesizing methanol, belonging to the technical field of catalysts. Background technique [0002] Methanol is an important organic chemical raw material and a clean alternative fuel. In recent years, driven by demand, breakthroughs have been made in the localization of coal chemical industry technology and equipment, and the demand for methanol in my country has continued to increase, which has promoted the rapid increase in methanol production capacity. In 2010, my country's methanol production capacity has exceeded 38,400kt / a, ranking first in the world in terms of production capacity, output, and consumption. It is estimated that by 2015, the production capacity will reach 50,000kt / a. [0003] The methanol industry has developed into an industry that has an important impact on the national economy, and the economic benefits of methanol enterprises are not only affected by market fact...
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IPC IPC(8): B01J37/00
Inventor 黄金钱陈海波魏士新王琼仇冬殷惠琴毛春鹏
Owner CHINA PETROCHEMICAL CORP