Pyrolytic　char　as　a　catalyst　carrier　has　been　widely　used　in　tar　removal.　This　paper　aimed　to　develop　a　cost-effective　and　eco-friendly　tar　steam　reforming　approach　by　using　waste　peat　char　supported　Ca　catalysts　in　a　laboratory　dual-stage　reactor.　Tar　model　compound　toluene　was　used　in　steam　reforming　experiment　for　facilitate　fundamental　research.　The　reaction　temperature,　residence　time,　steam-to-carbon　ratio　and　the　molar　ratios　of　H-2,　CO,　CO2　and　CH4　in　the　generated　gas　were　investigated.　Experimental　results　show　that　the　peat　char　supported　Ca　catalysts　had　good　selectivity　for　H-2,　especially　the　catalyst　which　activated　by　KOH　and　CO2.　The　catalyst　demonstrated　better　catalytic　activity　with　a　higher　residence　time　(0.6　s-0.7　s)　and　S/C　ratio　(S/C　＞　2.5).　Under　the　optimized　conditions,　the　toluene　conversion　and　the　mol%　of　H-2　can　reached　94.4%　and　68.5%,　respectively.　Meanwhile,　the　activity　of　the　catalyst　was　proved　by　a　variety　of　performance　tests,　and　the　deactivation　and　mechanism　of　catalysts　were　investigated.　Finally,　these　cost-effective　and　green　peat　char-supported　Ca　catalysts　could　be　used　for　tar　removal.　(C)　2020　Elsevier　Ltd.　All　rights　reserved.