ETANOLDAN ETILEN ISHLAB CHIQARISH UCHUN SERIY ASOSIDAGI KATALIZATOR
Keywords:
Kalit so'zlar: etilen; etanol; seriy; katalizator; elektron mikroskopiya usuliAbstract
Annotatsiya. Ce/-Al 2 O 3 va Ce-La/-Al 2 O 3 katalizatorlari elektron
mikroskopiyasi va ammiakning termodasturlashtirilgan desorbsiyasi yordamida
o'rganildi. Ularning faolligi etanolni suvsizlantirishda sinovdan o'tkazildi. Eng yuqori
faollik Ce-La/γ-Al 2 O 3 katalizatorida kuzatildi. Optimal jarayon sharoitida (reaktsiya
harorati 400 o C, fazoviy tezlik 6000 soat -1 va etanol konsentratsiyasi 19,7 g/m 3 )
etanolning konversiyasi 94% ni tashkil etdi va etilen hosildorligi 82% ga yetdi. Ce/-
Al 2 O 3 katalizatorini lantan bilan modifikatsiya qilgandan so'ng, katalizatorning
dispersiyasi oshgani, kislotali markazlar soni ortganligi va 2 nm kichik zarrachalar
konsentratsiyasi mavjudligi aniqlandi. Bu o'zgarishlar katalizatorning katalitik
faolligiga ijobiy ta'sir ko'rsatishi aniqlandi.
References
Adabiyotlar
1 Marina O.S., Marcelo D., da Cunha P. Simulation of integrated first and
second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods // Journal of Industrial Microbiology and
Biotechnology. ˗ 2011. ˗ Vol.38. ˗ P.955-966.
2 Dolgikh L.Yu., Pyatnitskii Yu.I., Reshetnikov S.I., Deinega I.V. Effect of
crystalline modification of the support on the reduction and catalytic in the steam
reforming of bioethanol // Theoretical and Experimental Chemistry. ˗ 2011. ˗ Vol.47.
˗ P.324˗330.
3 Kunz M. Bioethanol: experiences from running plants, optimization and
prospects // Biocatalysis and Biotransformation. – 2008. – Vol.26. – P.128-132.
4 Бутенко А.Н., Юрченко А.А. Блинков Н.А. Состав твердого
адсорбента для получения альтернативной топливной композиции //
Технологический Аудит и Резервы Производства. – 2013. – № 4/2(12). – С.25-27.
5 Досумов К., Ергазиева Г.Е. Получение углеводородов
каталитической конверсией биоэтанола // Тезисы Международного конгресса
«Биомасса: топливо и энергия». – Москва, 2012. – С.30.
6 Tretyakov V.F., Lermontov A.S., Makarfi Yu.I., Yakimova M.S.
Synthesis of motor fuels from bioethanol // Chemistry and Technology of Fuels and
Oils. – 2008. – Vol.44, Is.6. – P.409-414.
7 Siwale L., Kolesnikov A., Kristof L. Combustion and emission
characteristics of n-butanol // Fuel. – 2013. – Vol.107. – P.409418.
8 Bukhanko N., Samikannu A., Larsson W. Continuous gas-phase synthesis
of 1-ethyl chloride from ethyl alcohol and hydrochloric acid over Al2O3-based
catalysts: The "Green" route // ACS Sustainable Chemistry and Engineering. – 2013.
– Vol.1, Is.8. – P.883-893.
9 Caravaca A., De Lucas-Consuegra A., Calcerrada A.B., Lobato J.,
Valverde J.L., Dorado F. From biomass to pure hydrogen: electrochemical reforming
of bio-ethanol in a PEM electrolyser // Applied Catalysis B: Environmental. – 2013. –
Vol.134135. – P.302-309.
10 Pino L., Vita A., Laganà M., Recupero V. Hydrogen from biogas: catalytic
tri-reforming process with Ni/LaCe-O mixed oxides // Applied Catalysis B:
Environmental. – 2014. – Vol.148–149. – P.91–105.
