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1、石油學(xué)報(bào)(石油加工)2014年8月ACTAPETROLEISINICA(PETROLEUMPROCESSINGSECTION)第3O卷第4期文章編號(hào)：1001-8719(2014)04—0644—06神華煤直接液化循環(huán)溶劑的催化加氫高山松。，張德祥，李克健，白雪梅(1．華東理工大學(xué)資源與環(huán)境工程學(xué)院，上海2002372．煤炭直接液化國(guó)家工程實(shí)驗(yàn)室，上海201108)摘要：采用百萬(wàn)噸級(jí)神華煤直接液化示范裝置加氫穩(wěn)定單元進(jìn)料為加氫原料，在處理量300mL加氫實(shí)驗(yàn)裝置上考察了反應(yīng)溫度對(duì)煤直接液化循環(huán)溶劑性質(zhì)的影響，并采用0．5L攪拌式高壓釜研究了煤在不同加氫
2、深度循環(huán)溶劑中的液化效果結(jié)果表明，隨著溶劑加氫反應(yīng)溫度的升高，循環(huán)溶劑的硫、氮含量逐漸降低，氫／碳原子比增加；加氫反應(yīng)溫度由34o~c升至38o0C時(shí)，循環(huán)溶劑的芳碳率()不斷減小，供氫指數(shù)(PDQI)逐漸增大，供氫能力增強(qiáng)。采用380℃加氫反應(yīng)的循環(huán)溶劑進(jìn)行煤液化時(shí)，煤的轉(zhuǎn)化率和油收率均達(dá)到最大值，分別為88．64和57．63。當(dāng)溶劑加氫反應(yīng)溫度達(dá)到390~C時(shí)，循環(huán)溶劑的供氫指數(shù)出現(xiàn)降低，芳碳率增加，供氫能力減弱，煤在此溶劑中加氫液化的轉(zhuǎn)化率和油收率均有所降低，分別為88．22％和55．17％。關(guān)鍵詞：煤液化；上灣煤；循環(huán)溶劑；溶劑加氫；供氫性中圖
3、分類號(hào)：TQ529．1文獻(xiàn)標(biāo)識(shí)碼：Adoi：10．3969issn．10018719．2014．04．010CatalyticHydrotreatingofRecycleSolventforShenhuaCoalLiquefactionGAOShansong，ZHANGDexiang，LIKejian，BAIXuemei。(1．SchoolofResourcesandEnvironmentalEngineering，EastChinaUniversityofScienceandTechnology，Shanghai200237，China2．Natio
4、nalEngineeringLaboratoryforDirectCoalLiquefaction，Shanghai201108，China)Abstract：ThefeedofShenhuadirectcoalliquefactionsolventhydrotreatmentunitwasusedasthehydrotreatmentfeedstock．Thehydrotreatmentoftherecyclesolventwascarriedoutinthe300mLfixedbedreactorunderahydrogenpressureof13
5、．7MPa．Theeffectofreactiontemperatureonthehydrogendonorpropertiesofrecyclesolventwasstudied．Thehydrogenatedrecycleoilwasusedascoalliquefactiondonorsolventandevaluatedwiththecoalliquefactionexperimentsinthe0．5Lstirringautoclave．Theresultsshowedthatthesulfurandnitrogencontentsofthe
6、recyclesolventdecreasedandtheH／Catomicratioofthesolventincreasedwiththeincreaseofreactiontemperature．Thehydrogen—donatingabilityofthehydrogenatedsolventwasimprovedasthereactiontemperatureincreasedfrom340to38O℃．Whentherecyclesolventhydrogenatedat38O℃wasusedascoa1liquefactionsolve
7、nt，88．64ofthecoa1conversionand57．630Aofoilyieldwereobtained，respectively．Whenthehydrogenationreactiontemperaturereached390oC，thehydrogen—donatingabilityofthedonorsolventdeclined．Keywords：coalliquefaction；Shangwancoal；recyclesolvent；catalytichydrotreating；hydrogen—donating煤直接液化是在
8、高溫、高壓、臨氫、溶劑和催影響該反應(yīng)的因素很多，除煤質(zhì)、催化劑和工藝參化劑存在下的煤加氫裂解生
