Toluene　(TOL)　and　chlorobenzene　(CB),　as　typical　representatives　of　VOCs　and　CVOCs,　respectively,　widely　exist　in　various　industries.　The　synergistic　degradation　experiment　of　TOL　and　CB　was　carried　out　in　NTP　reactor,　and　compared　with　the　treatment　of　TOL　or　CB.　Meanwhile,　the　effects　of　the　mixture　concentration　ratio,　gas　velocity　and　the　catalyst　(0.4　Ru-1.0　Ce　/TiO2/cordierite)　on　the　degradation　of　TOL　and　CB　were　also　investigated.　The　experimental　results　suggested　that　the　45.6%　of　degradation　efficiency　and　14.4%　of　CO2　selectivity　of　TOL　was　higher　than　that　of　39.6%　and　11.5%　of　CB　at　14　kV.　Compared　with　the　NTP　alone,　the　degradation　efficiency　of　TOL　was　increased　by　20.8%　in　the　mixture　systems,　while　CB　was　inhibited　and　decreased　by　21.3%.　The　kinetic　analysis　also　proved　this　phenomenon.　The　concentration　ratio　of　TOL　and　CB　had　little　effect　on　the　degradation　efficiency　and　CO2　selectivity.　Higher　gas　velocity　reduced　the　degradation　efficiency　and　CO2　selectivity　of　the　mixture.　Meanwhile,　the　degradation　efficiency　and　CO2　selectivity　were　greatly　improved　through　the　catalyst.　Furthermore,　the　ozone　concentration　near　0　mg　m-3　at　22　kV,　and　the　results　of　ozone　demonstrated　that　the　formation　and　degradation　of　ozone　were　not　only　related　to　the　temperature　of　the　reaction　system,　but　also　related　to　the　type,　concentration　and　gas　velocity　of　pollutants.　Finally,　the　possible　degradation　pathways　of　two　aromatic　VOCs　in　the　process　of　plasma　degradation　were　proposed　and　discussed.　　©　2022　Elsevier　Ltd.