GENERATION OF H2 GAS FROM SOLID BASED POLYMER WASTES MECHANICALLY MILLED WITH Ni AND Ca
This paper discusses a process developed to produce high purity hydrogen gas from solid based hydrocarbons or polymers such as plastic wastes or biomass in a two-step process at temperatures below 600 ?. Polyethylene -CH2-n (PE), polyvinyl chloride -CH2-CHCl-n (PVC), Polystyrene -CH2-CH(C6H5)-n, Poly(vinyl alcohol) -CH(OH)CHr-n, cellulose C6(H2O)5 as sample hydrocarbon based compounds were first prepared by milling with Ni(OH)2 or Ni-doped LDH to provide Ni as catalyst for C-C bond rupture and Ca(OH)2 or CaO to provide Ca for CO2 or CO adsorption. In the second stage, the milled products were heated in He/Ar gas environments and product gases generated between 400-700 ? were evaluated for optimum conditions of hydrogen generation.Results for all samples investigated showed that the addition of Ni and Ca to the samples and sufficient milling allowed high gas generation mainly composed of H2 and CH4, CO, CO2 during heating at temperatures from 400-600 ?. Carbon oxides (CO2, CO) were fixed as CaCO3 and hydrogen gas with purity >95％ and CO/CO2 concentrations <0.5％ were achieved. The process offers a novel approach to treat solid waste hydrocarbon based polymer by transforming it into hydrogen.
William Tongamp Qiwu Zhang Atsushi Shibayama Fumio Saito
Faculty of Engineering & Resource Science, Akita University 1-1 Tegata-Gakuen machi, Akita 010-8502, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University2-1-1, Katahira,Aob
国际会议
成都
英文
129-133
2009-10-11（万方平台首次上网日期，不代表论文的发表时间）