Abstract:
Objective The advantages and disadvantages of reduction absorption and oxidation absorption tail gas treatment processes in the application process of natural gas purification plants were clarified.
Methods The adaptability of the two exhaust gas treatment processes was clarified by comparing the process principle and flow, key operation control and main process parameters, the impact on sulfur recovery and sewage treatment devices, energy consumption and material consumption.
Results Through comparative analysis, it can be concluded that the process flow of Cansolv tail gas treatment is more concise, and the desulfurization solvent has obvious absorption performance advantages, which also has adverse effects such as DS desulfurization solvent purification, equipment corrosion protection, and SO2-containing sewage treatment.
Conclusions Based on the advantages of high efficiency of desulfurization solution, the Cansolv process has lower comprehensive energy consumption, material cost, land occupation and investment than the Scott process, and has better applicability.
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