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ID:35140272
大小:2.15 MB
页数:55页
时间:2019-03-20
《试析提高劣质原料油转化深度fcc催化剂的研制与工业化开发》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、天津大学硕士学位论文提高劣质原料油转化深度FCC催化剂的研制与工业化开发姓名:陈军申请学位级别:硕士专业:化学工程指导教师:马智;秦松20090101摘要随着世界原油日趋重质化和劣质化,各国炼厂都大力发展掺炼或全炼重油和渣油的流化催化裂化(FCC)技术,以拓宽FCC原料油来源,满足全球市场对轻质油品的需求,最大限度提高经济效益。通过提高裂化催化剂中活性大孔催化材料含量,改善了催化剂裂解重油分子的活性,增强了催化剂的重油转化能力,提高了总液收,改善了抗金属污染性能;通过在FCC催化剂的基质制各过程中添加金属氧化物,在提高催化剂的活性稳定性
2、的同时进一步增强了催化剂的抗重金属污染能力;在以上技术创新的基础上,开发了FCC催化剂的新型基质制备技术,研究开发了新型重油催化剂。催化剂的制备重复性良好,理化性能均能满足裂化催化剂的各项要求。中型提升管评价表明:与对比降烯烃催化剂相比,在相同镍、钒污染条件下,汽油烯烃降低0.98个百分点,汽油辛烷值相当,重油转化能力提高3.5个百分点,总液收提高2.51个百分点,达到了设计要求,显示了良好的应用前景。关键词:催化裂化,催化剂,重金属,工业化ABSTRACTWiththefactthatworldcrudeoildaybydaydete
3、riorationandinferior-rization,refineryofeverycountrydevelopingenergeticallyfluidizationcatalyticcracking(FCC)technologyforadulterateorpureheavyoilandresidualoiltobroadentheFCCrawoilsource,satisfytheneed,highlimitimprovementofeconomicresultsthatthewholeworldmarketplacetas
4、testolightqualityoil.Byimprovingcontentofbigholesmaterial,thecatalystactivityofcrackingheavyoilmoleculeisenhanced,theabilityofchangingheavyiolisadvanced,thetotalliquidyieldisincreased,thefunctionofresistmetalcontaminatesisimproved.ByaddingametallicoxideintheprocessofFCCc
5、atalystmatrixpreparation,improvingthecatalystactivityandstabilityatthesametimehavingstrengthenedcatalystfurtherresistingabilitytoheavymetalcontaminates.Onallabovetechnologicalinnovationbasis,thetechnologyhavingdevelopedFCCcatalystnewmatrixpreparation,thenewdedicatedFCCca
6、talystisdeveloped.Therepetitivenessofcatalystpreperationisfine,thecatalystphysicsandchemistrycharactersatisfycallfor.Theevaluationonliftpipecatalyticcrackingdeviceindicate:comparedwithreductionolifencatalystundertheidenticalnickelandvanadiumcontaminatecondition,thegasoli
7、neolefinreduces0.98percentagepoint,thegasolineoctanenumberiswell-balanced,theabilityofchangingheavyiolimprove3.5percentagepoint,thetotalliquidyieldincrease2.51percentagepoint,thenewcatalystreachdesigncallforanddemonstratethefineapplicationprospectKEYWORDS:catalyticcracki
8、ng,catalyst,heavymetal,industrialization独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作和取得的研究成果,除了文中特别加以标注和致谢之处外,论文中不
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