Method of producing ethanolamine from liquid ammonia

A technology of ethanolamine and liquid ammonia, applied in chemical instruments and methods, preparation of organic compounds, preparation of amino hydroxyl compounds, etc., can solve the problems of many by-products, high equipment investment, low safety, etc., and achieve product purity and easy separation , the reaction temperature is controllable, and the effect of avoiding safety accidents and equipment failures
CN104557571AActive Publication Date: 2015-04-29CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2015-04-29

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Abstract

The invention relates to a method of producing ethanolamine from liquid ammonia and mainly aims to solve the technical problems of a large amount of byproducts, low security, high investment in equipment and high energy consumption in the prior art. According to the technical scheme, ethylene oxide and fresh liquid ammonia are respectively added into a tubular fixed-bed reactor by a feeding pump, the product of reaction is added into an adiabatic fixed-bed reactor, and the tubular fixed-bed reactor and the adiabatic fixed-bed reactor are both filled with a binder-free ZSM-5 zeolite molecular sieve catalyst so as to catalyze ammoniation to generate ammonia-containing ethanolamine. By adopting the technical scheme, the problems can be well solved. The method provided by the invention can be applied to the industrial production of ethanolamine.
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Description

Technical field

[0001] The invention relates to the field of ethanolamine production. Specifically, it relates to a method for producing ethanolamine using liquid ammonia (anhydrous) and ethylene oxide as raw materials under the catalysis of a binder-free ZSM-5 zeolite molecular sieve catalyst. Background technique

[0002] In recent years, ethanolamine has played an increasingly important role in secondary oil recovery, gas purification, and pharmaceutical intermediates. As an important downstream product of ethylene oxide (EO), the average annual growth rate of global demand for ethanolamine will remain at 4-5% in the next 5 to 10 years, and the growth rate of domestic ethanolamine market demand will exceed this average growth rate. Therefore, EO-catalyzed ammoniation to synthesize ethanolamine and its downstream products have broad development space and technological development value in the future petrochemical industry. At present, the relevant foreign companies engage...

Claims

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