If by "soaps" you mean alkali salts of fatty acids as product of electrohydrolysis process then you should note the further Kolbe electrolysis of carboxylic acid salt to the corresponding alkane:
2RCOO:-Na + ---> R-R + 2CO2 + 2NaOH + H2
But i dont know how this method works with long chain fatty acids for example with stearic salt the product should be C32 alkane...