Development of a Biphasic Electroreactor with a Wet Scrubbing System for the Removal of Gaseous Benzene
| Autor: | Muthuraman Govindan, Il-Shik Moon, Jae Wook Jang, Hyun-Ho Moon, Sang Joon Chung |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Wet scrubber
Aqueous solution Chromatography Chemistry Silicones Sodium Dodecyl Sulfate Benzene Sulfuric acid Equipment Design General Chemistry General Medicine Carbon Dioxide Silicone oil chemistry.chemical_compound Volume (thermodynamics) Electrochemistry Feasibility Studies Gases Absorption (chemistry) Data scrubbing |
| Zdroj: | ACS Combinatorial Science. 15:439-446 |
| ISSN: | 2156-8944 2156-8952 |
| Popis: | An efficient, continuous flow electroreactor system comprising a scrubbing column (for absorption) and a biphasic electroreactor (for degradation) was developed to treat gas streams containing benzene. Initial benzene absorption studies using a continuous flow bubble column containing absorbents like 40% sulfuric acid, 10% silicone oil (3, 5, 10 cSt), or 100% silicone oil showed that 100% silicone oil is the most suitable. A biphasic batch electroreactor based on 50 mL of silicone oil and 100 mL of activated Co(III) (activated electrochemically) in 40% sulfuric acid demonstrated that indirect oxidation of benzene is possible by Co(III). Combined experiments on the wet scrubbing column and biphasic electroreactor (BP-ER) were performed to determine the feasibility of benzene removal, which is reside in the silicone oil medium. In semidynamic scrubbing with BP-ER experiments using an aqueous electroreactor volume of 2 L, and an inlet gas flow and a gaseous benzene concentration were 10 Lmin(-1) and 100 ppm, respectively, benzene removal efficiency is 75% in sustainable way. The trend of CO2 evolution is well correlated with benzene recovery in the BP-ER. The addition of sodiumdodecyl sulfate (SDS) enhanced the recovery of silicone oil without affecting benzene removal. This process is promising for the treatment of high concentrations of gaseous benzene. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|