Sulfur dioxide absorption and desorption
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How can a mixed gas containing sulfur dioxide, sulfur trioxide, and methane absorb sulfur dioxide, and then use the absorption liquid to desorb the sulfur dioxide?
Solutions that can absorb and desorb SO2 currently mainly include sodium hydroxide, liquid ammonia and "ionic liquid" from Chengdu Huaxi Chemical Industry. It is recommended to use "ionic liquid" to absorb SO2. This technology can obtain high-purity SO2 (more than 99%)
Only the traditional "acid process" can be used“
Can the second floor provide information about ionic liquids, transfer fees and other relevant information?
The absorption (analytical) liquid we use when producing national standard liquid sulfur dioxide is sodium citrate buffer solution, but high sulfur trioxide content is not acceptable. Can you tell us your specific gas content?
Can you tell me the composition of the buffer solution mentioned above? Thank you.
Acid method is enough, with one-stage re-spraying and re-blocking device, the absorption rate can reach more than 90%
The key is to clarify the conditions and the relative components of your raw material gas! Let me tell you, the mature sodium citrate process absorbs SO2. The first step is to absorb and remove SO3 gas by sulfuric acid washing, and then use a high-efficiency mist removal device to remove H2SO4 acid mist (>99%), then absorb it with 150g/l sodium citrate solution, and then use steam to heat, analyze, dry and compress the SO2 gas to produce liquid SO2. The craft is simple to say, but difficult and complicated to do!
Regarding the removal and recovery of SO2 in flue gas by ionic liquids, please refer to my information. http://bbs.hcbbs.com/thread-87258-1-1.html If you have any questions, please contact me.
Please tell everyone the patent number and application number "About the removal and recovery of SO2 in flue gas with ionic liquids"? ? :lol for learning * :lol
Organic cationic and inorganic anionic complex amine aqueous solutions
Which absorption method has the lowest operating cost when the requirements for analyzing sulfur dioxide concentration are not high? Mainly steam