Generator and method for preparing nitrous oxide by degrading ammonium nitrate in wet way

Abstract

The invention provides a generator and method for preparing nitrous oxide by degrading ammonium nitrate in a wet way, and relates to the technical field of chemical equipment. The generator is characterized in that a heating controller, a cooling controller and a quenching controller are correspondingly used for controlling the work of a heating assembly, a material cooling heat exchanger and a quenching heat exchanger; the heating assembly, the material cooling heat exchanger and the quenching heat exchanger are coordinative to work to achieve the purpose of accurately controlling the reaction temperature, and thus the phenomenon of excessively high temperature in a kettle in the reaction process is avoided. The method is applicable to the generator, and the circumstance of excessively high temperature caused by heat dissipating is prevented.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a generator and a method for preparing nitrous oxide by wet decomposition of ammonium nitrate. Background technique [0002] In recent years, with the rapid development of my country's VLSI, chip industry, flat panel display, photovoltaic power generation and other industries, the market demand for electronic gases has increased significantly, and the localization of electronic special gases has become the general trend. my country has made gratifying progress in localization, and it is inevitable that domestic high-purity electronic special gas will change the monopoly market pattern of international gas companies. [0003] Electronic grade nitrous oxide (purity above 99.9999%) is mainly used for gas for atomic absorption spectroscopy, balance gas for semiconductor manufacturing, oxidation, chemical vapor deposition, and standard gas. In recent years, a large amount ...

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Problems solved by technology

The production process of ammonium nitrate dry decomposition is a general process at present, but the decomposition temperature of ammonium nitrate in this process is not easy to control, and the safety guarantee of the ammonium nitrate decomposer is poor; the industrial tail gas recovery process is complicated due to the tail gas components, and the purification process is difficult, and the construction investment and production cost is too high

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