欢迎来到天天文库
浏览记录
ID:32356134
大小:8.49 MB
页数:83页
时间:2019-02-03
《sapo34及复合膜的制备、表征及其膜反应器性能研究》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、SAPO-34及复合膜的制各、表征及其膜反应器性能研究400nnqand200nillweresuccessfullysynthesized.andtheas—obtainedSAPO一34zeoliteseedsalsoshowedverynarrowsizedistributionandhighcrystallinity.(2)Hi曲qualitySAPO一34zeolitemembraneswerepreparedonporousceramictubularsupportbyconventionalheatingandm
2、icrowaveheating,respectively.WithafeedandpermeatepressureofO.1MPaat973KandusingN2assweepgas.theH2permeanceswere3.5×10‘1mol·Pa_‘·m~·s’1and2.32×10~m01.Pa-1.m-2.s一,andH2/CH4idealselectivitieswere27and45,respectively.Theseparationperformanceofpreparedmembranesalsoshowed
3、longtimestabilitythoughthetemperaturewasashighas973K.(3)SAPO-34/carboncompositemembranesweresuccessfullypreparedonporousceramictubularsupportusingdipcoatingmethod.Atroomtemperatureand0.1MPatras—membranepressuredrop,theH2/CH4andC02/CH4separationselectivitieswereashii
4、ghas1l2and253,respectively.At973K,withoutpressuredropthroughthemembraneandusingN2assweepgas,theH2/CH4idealselectivitywasashighas78,andtheH2permeanceswas8.2×10~m01.Pa-l-m-2.s-1.(4)ConstructionofSAPO一34zeolitemembranereactorandSAPO一34/carbonmembranereacorwasperformed,
5、andmethanedehydro—aromatizationundernon.oxidativeconditionsinmembranereactorswascurriedout.Theresultsshowedthat.inaSAPO.34zeolitemembranereactorandSAP0—34/carbonmembraneat973K,themethaneconversionswere16.8%and17.2%,andthebenzeneyieldswere9.1%and9.3%,respectively.Com
6、paredwithtraditionalfixedbedreactor,themethaneconversionswereincreasedbV33.5%and41.6%,andthebenzeneyieldswereincreasedby46.7%and51.8%,respectively.KeyWords:SAPO一34;Zeolitemembranes;Secondarygrowthmethod;Microwavesynthesis;Membranereactor;Methanedehydro-aromatization
7、—IIl大连理工大学学位论文独创性声明作者郑重声明:所呈交的学位论文,是本人在导师的指导下进行研究工作所取得的成果。尽我所知,除文中已经注明引用内容和致谢的地方外,本论文不包含其他个人或集体已经发表的研究成果,也不包含其他已申请学位或其他用途使用过的成果。与我一同工作的同志对本研究所做的贡献均已在论文中做了明确的说明并表示了谢意。若有不实之处,本人愿意承担相关法律责任。学位论文题目:墨垒里Q二兰垒区复佥膜鲍剑叠!塞焦丞基送厦座墨性鱼量盈究作者签名:—乏蚪一日期:竺孕年旱月上日大连理一I:大学硕:£研究生学位论文大连理工大学学位
8、论文版权使用授权书本人完全了解学校有关学位论文知识产权的规定,在校攻读学位期间论文工作的知识产权属于大连理工大学,允许论文被查阅和借阅。学校有权保留论文并向国家有关部门或机构送交论文的复印件和电子版,可以将本学位论文的全部或部分内容编入有关数据库进行检索,’可以采用影印、缩印
此文档下载收益归作者所有