 Promotion of O 2 on the co‐pyrolysis of CHF 3 and CH 4 for VDF synthesisWenfeng Han, Yanyan Song, Wucan Liu, Luteng Yang, Haodong Tang, Shucheng Wang, Zhixing Wu and Jianjun Zhang Greenhouse Gases: Science and Technology, 2017, vol. 7, issue 5, 891-902 Abstract: Co‐pyrolysis of CHF 3 and CH 4 in the presence of O 2 was investigated in a tubular reactor at temperatures between 700 and 860°C, atmospheric pressure, and residence time of 1.64 s. Under reaction conditions studied, introduction of O 2 in the CHF 3 and CH 4 feed significantly improves the conversion of CH 4 , and while conversion of CHF 3 almost stays unchanged. In the absence of O 2 , CH 4 is activated by chain reactions which are initiated by the surface of the reactor. Following the introduction of O 2 , a series of additional chain reactions (reactions of CH 4 with O 2 , O•, •HO 2 and •OH radicals) generate more •CH 3 radicals which are one of the key species for the formation of target product, CH 2 =CF 2 . Therefore, formation rate of CH 2 =CF 2 is doubled under optimal reaction conditions. The suitable O 2 /CH 4 feed ratio is suggested to be 0.06 for the formation of CH 2 =CF 2 . In addition, introduction of O 2 in the feed decreases the formation of major byproduct C 2 F 4 and C 2 HF 3 significantly. After O 2 is introduced, as more H• radicals are produced, improved formation rate of C 2 H 3 F results. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd. Date: 2017 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:wly:greenh:v:7:y:2017:i:5:p:891-902 Access Statistics for this article More articles in Greenhouse Gases: Science and Technology from Blackwell Publishing |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.