Issues with the two-wash process configuration

2017-07-16View Original

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“Liquid nitrogen washing must be carried out at a low temperature of around -190 degrees, and it is required that the gas entering the liquid nitrogen washing device be completely dry. Since low-temperature methanol washing also serves to dry the gas and reduces its temperature to -50 to -70 degrees, the drying section and pre-cooling section of a liquid nitrogen washing unit are unnecessary. It saves on investment and simplifies operations, thereby reducing power consumption during the freezing process. ”What are the reasons why the energy allocation for the two washing processes in actual ammonia synthesis processes is not arranged in this way?

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Issues with the two-wash process configuration

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