2017-7-10 Purification Technology Edition Daily Question (True/False)

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This post was last edited by hai8487 on 2017-7-11 09:45. 1. Low-temperature methanol washing: Under normal circumstances, it can be approximated that the solubility of gases is directly proportional to pressure and inversely proportional to temperature. The solubility of gases is related to the properties of the gases themselves as well as those of the solvent. Using methanol as a solvent, the solubility of hydrogen sulfide gas is about 6 times higher than that of carbon dioxide; as a result, much less solvent is required for washing and absorption. At low temperatures, acidic gases have a solubility hundreds of times higher than that of CO and H2, which enables selective absorption. ( ) 2. K04201 is a recycle gas compressor, used to compress and recover the crude flash vapor H2 and CO from the methanol wash rich liquid and feed it back into the process system. （） Right, right. Note: Answers to this question are valid within two days! ! ! In 2017, in the field of coal chemical industry: “My Technical Upgrades” http://bbs.hcbbs.com/thread-1786290-1-1.html. In the petrochemical sector: The “Creative Ideas for Energy Savings” campaign (the second phase is currently in full swing) http://bbs.hcbbs.com/thread-1666758-1-1.html