Supplementary gas/oil fraction and circulating gas/oil fraction
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I would like to ask the experienced colleagues: in ammonia synthesis, what are the differences in the functions, installation locations, and technical requirements of the make-up gas oil fractions and the recycle gas oil fractions? As a newcomer to this field, I appreciate any guidance from you all. Thank you
Its function is naturally to remove the oil that leaks from the compressor into the process gas; after all, many turbine oils or lubricants are synthetic oils that contain carbon as well as small amounts of other elements. Under the high temperature and pressure conditions in the synthesis tower, these substances can easily decompose to form carbon oxides, which are toxic to the synthesis catalysts. Therefore, degreasing is necessary. The specific location varies depending on the process design; generally, centrifugal compressors are equipped with a separation tank only at the outlet of the circulation section. The oil requirements for reciprocating compressors may be higher.
The gas-oil separator is used to remove the oil and water brought in by the compressor, as well as the copper melt from the copper washing unit; it is located at the inlet of the ammonia synthesis system； The oil fraction in the circulating gas is located before the synthesis tower and after the circulator, thereby preventing oil contamination from entering the synthesis tower and damaging the catalyst; after all, most circulators require lubricating oil
I think the main things are to increase the net value of the product and boost production. Maybe my explanation is a bit vague, as our company specializes in dealing with oils and amines.....=. =