Syngas Generation Via Electrochemical Conversion Of Mixed Molten Carbonate & Hydroxide

With the development of human society,energy shortage and environmental pollution problems become increasingly prominent,green,safe synthesis of this important chemical raw materials is particularly important.In this paper,the electrochemical conversion of mixed carbonate and monovalent hydroxide as electrolyte was successfully constructed.And the system was subjected to polarization test and cyclic voltammetry test,the product was characterized by gas chromatograph?GC?,infrared spectroscopy?FTIR?,scanning electron microscopy?SEM?and other instruments.The influence of the factors such as electrolyte type,molar ratio of H/C raw material,electrolysis voltage and electrolysis temperature on the content of the product was investigated.And to prepare a high CO content of synthetic gas as the goal,from which the optimal electrolysis conditions were selected out.The results show that: Regulation of electrolyte composition and electrolysis conditions to obtain different H₂/CO synthesis gas,and control of hydrocarbon generation and carbon secondary reaction occurred;The CO content of the product is up to 37.6%,H₂/CO is 1.34,the side reaction is effectively controlled,and the current efficiency is 67.3% at the temperature of 700? and the constant voltage electrolysis of Li_0.85Na_0.61K_0.54CO₃-0.08 Li OH with 3.2V,The successful realization of the use of carbon dioxide resources,to achieve the purpose of energy conservation.