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Study of Dimethyl Sulfoxide Microemulsion Circulation Desulfurization

Author: WuXiaoYan
Tutor: YuBingJie
School: Yanshan University
Course: Environmental Engineering
Keywords: FGD Dimethyl sulfoxide Microemulsion Emulsifier Formaldehyde absorption - Pararosaniline spectrophotometry Desulfurization cycle
CLC: X701.3
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


In this paper, the absorption of sulfur dioxide dimethyl sulfoxide microemulsion process analysis . Prepared by a number of different systems Schulman dimethyl sulfoxide microemulsion , screening a suitable emulsifier ratio . Microemulsions by measuring the desulfurization efficiency under different conditions to study the cycle desulfurization performance . SO 2 concentration of formaldehyde absorption - Pararosaniline spectrophotometry (HJ482-2009) detected . The diesel oil phase , dimethylsulfoxide (DMSO) the water phase ( oil phase aqueous phase ratio of 1:9), Span80 and isoamyl alcohol ( volume ratio of about 1:1 ) as the emulsifier microemulsion , under this system the maximum mass fraction of DMSO 74.09% . The experimental results showed that: the preparation of dimethyl sulfoxide microemulsion SO 2 have a good absorption. When the temperature is 30 oC absorption absorption efficiency above 99% . During the introduction of large volumes of air in the case , desulfurization products (NH 4 ) 2 SO 3 is oxidized into stable (NH4) 2 SO 4 , will not cause secondary pollution. In the recycled microemulsion containing dimethyl sulfoxide , H 2 O and ammonia absorption solution , with Mn 2 solution instead of H 2 O added , can increase the cycle time of the absorbing liquid layering speed. When SO 2 and the air flow rate ratio of 1:7 , microemulsions and H 2 O volume ratio of 1:1, Mn 2 solution concentration of 0.05 mol / L, the amount of 0.5 mL of ammonia when doing loop experiments , cycle 5 min, with the number of cycles increases, the absorption efficiency gradually stabilized , reaching 98%. Product was concentrated to obtain the purified ammonium sulfate product. The excellent effect of loop processing , to the energy , efficiency purposes .

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Exhaust gas processing and utilization > Desulfurization and desulfurization
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