Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс:
http://elar.urfu.ru/handle/10995/75763
Название: | Aqueous vapour substitution for hydrogen in the process of pyrolysis |
Авторы: | Demidenko, M. Magaril, R. Magaril, E. |
Дата публикации: | 2014 |
Издатель: | WITPress |
Библиографическое описание: | Demidenko M. Aqueous vapour substitution for hydrogen in the process of pyrolysis / M. Demidenko, R. Magaril, E. Magaril // WIT Transactions on Ecology and the Environment. — 2014. — Vol. 190 VOLUME 2. — P. 855-860. |
Аннотация: | In order to decrease hydrocarbons fractional pressure in the process of ethylene pyrolysis, 0.5-1.5 kilograms of aqueous vapour is added to each kilo of feedstock. In the pyrolysis of hydrocarbon feed, a considerable part of the process' power consumption is connected with water vaporization; heating up of the diluent to 800°C and more with the subsequent condensation. The aim of this work is to reduce specific energy consumption and improve selectivity to ethylene of pyrolysis process. The same hydrocarbons fractional pressure can be created as during diluting by aqueous vapour if we use hydrogen as a diluent with its mass 9 times less. It was found that if hydrogen is purged to the furnace inlet under different feedstock temperatures prior to the pyrolitic reaction, hydrogen will become a homogeneous catalyst for the subsequent radical-chain reactions. The depth of the reaction (according to Korzun and Magaril in Thermal processes of refining 2008) will be greater, under otherwise equal conditions, than without hydrogen. Specific heat energy consumption for the production of ethylene, as well as for the amount of ethylene and propylene, with aqueous vapour substitution to hydrogen decreases. When replacing the vapour for a considerably smaller amount of hydrogen, the latter is involved in a radical chain process, providing greater selectivity for ethylene production, thereby increasing the yield of ethylene at 15% relative. As a result, ethylene production costs are significantly reduced. © 2014 WIT Press. |
Ключевые слова: | ENERGY COST REDUCTION ETHYLENE HOMOGENEOUS CATALYSIS PROCESS SELECTIVITY PYROLYSIS CATALYST CONDENSATION DILUTION ETHYLENE HYDROGEN PYROLYSIS REACTION KINETICS SUBSTITUTION VAPORIZATION |
URI: | http://elar.urfu.ru/handle/10995/75763 |
Условия доступа: | info:eu-repo/semantics/openAccess |
Конференция/семинар: | 1st International Conference on Energy Production and Management in the 21st Century: The Quest for Sustainable Energy |
Дата конференции/семинара: | 23 April 2014 through 25 April 2014 |
Идентификатор SCOPUS: | 84897839726 |
Идентификатор PURE: | 379611 |
ISSN: | 1743-3541 |
DOI: | 10.2495/EQ140792 |
Сведения о поддержке: | International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environment |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
---|---|---|---|---|
10.2495-eq140792.pdf | 315,75 kB | Adobe PDF | Просмотреть/Открыть |
Все ресурсы в архиве электронных ресурсов защищены авторским правом, все права сохранены.