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1、石油學(xué)報(bào)(石油加工)2013年2月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECT10N)第29卷第1期文章編號：1001—8719(2013)01—0069—06Cao／Zno固體堿催化制備生物柴油及催化劑的表征靳福全，劉秉愛，李曉紅，李冰，楊紅(1．太原工業(yè)學(xué)院化學(xué)與化工系，山西太原030008；2．山西北方興安化學(xué)工業(yè)有限公司，山西太原030008)摘要：用浸漬法制備了Ca(Ac)／ZnO，再將其通過高溫焙燒制得CaO／ZnO。用正交實(shí)驗(yàn)法考察了浸漬液的質(zhì)量分?jǐn)?shù)、焙燒溫度及焙燒時(shí)間對CaO／ZnO催化活性的影響。以優(yōu)化條件制備的CaO／ZnO為催化劑，
2、考察了蓖麻油與甲醇的催化酯交換反應(yīng)。采用TG-DTG、XRD、BET表征了優(yōu)化條件下制得的Ca(Ac)／ZnO和CaO／ZnO。結(jié)果表明，適宜的CaO／ZnO催化劑制備條件為浸漬液質(zhì)量分?jǐn)?shù)0．20、焙燒溫度973K、焙燒時(shí)間3h。當(dāng)醇／油摩爾比9、催化劑／油質(zhì)量比0．03、反應(yīng)溫度338K、反應(yīng)時(shí)間4．5h時(shí)，蓖麻油轉(zhuǎn)化率可達(dá)99．7。Ca(Ac)／ZnO的TDTG曲線在690K和1020K有2個(gè)明顯的失重峰；Ca0／zn0和ZnO具有相同的晶相結(jié)構(gòu)，表明CaO在ZnO表面呈高度分散狀態(tài)；CaO／zn0比表面積為6．10m。／g，平均孔半徑為2．59am。關(guān)鍵詞：ZnO；CaO；催化；生物柴油
3、中圖分類號：TK6；TQ645文獻(xiàn)標(biāo)識碼：Adoi：10．3969／j．issn．1001—8719．2013．01．012SynthesisofBiodieselCatalyzedbySolidBaseCaO／ZnOandCharacterizationofCaO／ZnOJINFuquan，LIUBing’ai，LIXiaohong，LIBing，YANGHong(1．DepartmentofChemistryandChemicalEngineering，TaiyuanInstituteofTechnology，Taiyuan030008，China；2．ShanxiNorthXing’an
4、ChemicalIndustryCo．LTD，Taiyuan030008，China)Abstract：Ca(Ac)2／ZnOwaspreparedbyimpregnationandwithwhichCaO／ZnOwasmadebyhightemperaturecalcination．Effectsofimpregnatingsolutionmassfraction，calcinationtemperatureandcalcinationtimeonthecatalyticactivityofCaO／ZnOwereinvestigatedthroughorthogonalexperiments
5、．ThetransesterificationofcastoroilwithmethanolwasstudiedbyusingCaO／ZnOasacatalyst，preparedundertheoptimalconditions．Ca(Ac)2／ZnOandCaO／ZnOpreparedatoptimalconditionswerecharacterizedbyTG—DTG，XRD，BET．TheresultsshowedthatthesuitablepreparationconditionsofCaO／ZnOwasimpregnatingsolutionmassfraction0．2，ca
6、lcinationtemperature973Kandcalcinationtime3h．Undertheconditionsofalcohol／oilmolarratio9，catalyst／oilmassratio0．03，reactiontemperature338Kandreactiontime4．5h，castoroilconversioncouldreach99．7．Thereweretwodistinctweightlesspeaksat690Kand1020KinTG—DTGcurvesOfCa(Ac)2／ZnO．CaO／ZnOandZnOhadthesamecrystalli
7、nestructure，displayingCaObeingutterlydispersedonZnO．ThesurfaceareaofCaO／ZnOwas6．10m／ganditsaverageporeradiuswas2．59nm．Keywords：zincoxide；calciumoxide；catalysis；biodiesel生物柴油是指由植物油脂、動(dòng)物脂肪、微藻、油脂加工下腳料及餐飲廢
