• 作者： Shih, Yen-Shiang; Kuo, Sheng-Lung; Cheng, Ching-Wen
• 中文摘要： 本文經由電化學之方法,提供一個新的方向,使硫化氫直接轉化為氫氣及硫磺。由有機萃取劑(Toluene)之加入鹼硫離子水溶液電化學反應中,造成多相系統之萃取式電化學反應,使此反應得以繼續操作。文中首先建立此種多相硫離子萃取電化學反應模式,藉修正Scheibel type萃取器,設計合適之平行流(flow-by)及垂直流(flow-through)反應器,由動力分析,定義出硫離子在反應中之有效質傳係數(Keff),在雷諾數(Re)大於2*10/sup 4/,Keff約為(4-20)*10/ sup 4/cm/sec間且由操作條件控制下,可得50-70%之產率,提供一可行、連續性之萃取式電化學反應器。
• 英文摘要： There opens a new route for the direct conversion of hydrogen sulfide to hydrogen and sulfur electrochemical method. A continuous multiple-phase extractive-electrochemical system was applied in sulfide ion electrochemical reaction by using organic solvent to extract the adhered sulfur on the electrode surface. This paper establishes a model of the multiple-phase sulfide ion reaction system by employing a modified Scheibel-type extractor to test the flow-by and flow-through reaction systems. An effective mass transfer coefficient (K/sub eff/) was defined to describe the kinetic phenomena of this complicated extractive electrochemical system. Experimentally, for the designated reactors, the calculated effective mass transfer coefficients were(4-20)*10/sup 4/cm/sec under operating conditions with Reynolds number greater than 2*10/sup 4/. The recovered yield of sulfur from the semi-batch system could reach 50-70% depending on the operating conditions. These results prove the feasibility of using flow-by or flow-through reactor to carry out the extractive electrochemical reaction of sulfide ion solution.
• 中文關鍵字： 硫化物氧化; 硫磺回收; 萃取反應器; 電化學反應設計; 有效質傳係數
• 英文關鍵字： Sulfide Oxidation; Sulfur Recovery; Extractive Reactors; Electrochemical Reactor Design; Effective Mass Transfer Coefficient