H2S低电耗电解制H2新方法

引言 如何有效地处理有害气体H2S已成为人们十分关注的研究课题.目前主要的处理方法是Claus法和Lo-cat法,这两种方法的基本原理都可表示为:2H2S+O2→2S+2H2O.其中Claus法主要用于处理高含量H2S气体,Lo-cat法则主要用于处理低含量H2S气体.这两种方法在国内外许多炼油厂中都得到应用[1～5].

NEW TECHNIQUE OF LOWER ELECTRICITY CONSUMPTION ELECTROLYSIS PRODUCING H2 FROM HYDROGEN SALFIDE

A new technique of lower electricity consumption electrolysis producing H₂ has been developed, and the factors affecting producing H₂ production were investigated. The results found that under the same electrolysis conditions, H₂ production on the cathode increased with increasing electrolyte solution alkalinity; but decreased with increasing zinc ion concentration in the electrolyte solution. The results also revealed that H₂ production on the cathode fluctuated with increasing electrolysis voltage, and reached a maximum when the voltage was at 0. 6 V. In a certainty range, it would be favorable to reduce the electricity consumption in H₂ production with increasing electrolyte solution alkalinity; but the electricity consumption would be increase when electrolysis voltage was higher. Compared with producing H₂ from H₂O, the electrolysis voltage was lower by about IV, and the electricity consumption of H₂ also decreased by 50% .