Using　black　liquor　(BL)　of　paper　pulp　plant　as　catalyst,　the　steam　gasification　kinetics　of　four　high　metamorphosed　anthracites　were　investigated　by　isothermal　thermo-gravimetric　analysis　under　ambient　pressure.　The　relationships　of　coal　conversion　(x)　versus　reaction　time　(t)　were　obtained　from　750°C　to　950°C　under　reaction　control.　The　shrinking　core　model　was　modified　by　catalyst　effective　factor.　The　modification　shrinking　core　model　and　the　modification　volumetric　model　were　used　to　well　correlate　the　relationship　between　x　and　t.　Therefore,　the　reaction　rate　constants,　the　reaction　activation　energy　(Ea)　and　the　pre-ex-ponential　factor　were　obtained.　The　Ea,　ranging　from　112.838　kJ/mol-204.566　kJ/mol　was　estimated　by　this　study.　Compared　with　the　k,　of　Na2CO3,　those　of　BL　were　higher　except　for　Yongan　Jiashai　coal　which　has　the　highest　ash　concentration.