煙煤氧化及產(chǎn)物煤酸異構化制對苯二甲酸研究.pdf

1、大連理工大學碩士學位論文煙煤氧化及產(chǎn)物煤酸異構化制對苯二甲酸研究姓名：關珺申請學位級別：碩士專業(yè)：化學工藝指導教師：張秋民20020612煙煤氧化及產(chǎn)物煤陂異構化制對苯二‘P艘研究AbstractThisinvestigationisabouttheinfluenceoffattyacidusedasthepromoterontheproductofbituminouscoaloxidationbyoxygenandalkalineso

2、lutionactinginanautoclaveIt’sprovedthattheyieldofcoalacids(CA)canbeimprovedbyaddingacetieacidorpropanoicacidTheactivitiesofthetwokindsofpromoterareaboutthesame。buttheinfluencesondifferentkindsofcoalaredifferentFormeagerc

3、oaloxidationinK2COmediumwith15％aceticacidaspromotertheyieldofCAincreasesfrom27O％(daf)to353％(daf)Forgascoaloxidationundersameconditions。theyieldofCAincreasesfrom213％(daf)to233％(daf)Similarresultswereobtainedwhenpromoterwa

4、saddedintoKOHmediumThemorehelpfuleffectofpromoteristhatitcanimprovethecontentofBPCAinCAsharplYWithorwithoutthepromoterthechangesintheYieldsofCAwiththereactionratioofalkalitocoal，temperature，reactiontimeissimilar7fheisome

5、rizationoftheensembleka]isaltofCA們thCdCO，ascatalystandinC02inaminireactor(25mi)hasbeeninvestigatedThemainfactorsinvestigatedarethecontentofcata]yst，initialpressureofC02reactiontemperatureandreactiontimeItisfoundthattheBP

6、CAinCAcanbeconvertedintoTPAandthecrudeTPA(pureness90％)couldbeobtainedafterseparatingisomerazatedproductThebetterconditionsofka]isaltofCAisomerazatingare：reactiontemperature，430～450℃：jnitialpressureofC02，4OMpa；contentofca

7、talyst，4％：reactiontime，2hTheoptimumconditionsofisomerizatingbykalisaltofCAandkalisaltofbenzenecarboxylicacidaresimilartothatofkalisaltofCAisomerazationonlYTheyieldofcrudeTPAtoCAisabout34％inthecaseofCAisomerizatingItequal

8、sto75％ofthetheoreticalyieldtoBPCATheyieldofcrudeTPAreachesupto68％whenkalisaltofCAandsaltofbenzenecarboxylicacidisomerizatingunderthebestconditionsTheyieldofTPAtoCAisupto70％afterdeductingthetheoreticalyieldofBAdisproporti