Simple Preparation of Spherical Activated Carbon with Mesoporous Structure from Phenolic Resol and Associated Catalytic Performance in Isobutane Dehydrogenation
Transactions of Tianjin University, ISSN: 1995-8196, Vol: 24, Issue: 4, Page: 351-360
2018
- 6Citations
- 5Captures
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Article Description
This study provides a detailed report on the synthesis of spherical activated carbon with mesoporous structure using a soluble low molecular weight phenolic resol precursor through an ammonium alginate assisted sol–gel method. The effects of calcinating temperature and the addition of CaCO as a pore-enlarging agent on texture structure and catalytic performance in isobutane dehydrogenation to isobutene were investigated. Characterization of N sorption, mechanical strength tests, and optical photographs confirmed that the obtained carbon materials had high mechanical strength, a good degree of sphericity, and a large surface area. Introducing CaCO as a pore-enlarging agent during the preparation process promoted the formation of a mesoporous structure of carbon spheres and evidently increased the surface area and oxygen content, which can improve isobutane conversion and isobutene selectivity of these carbon spheres. The conversion of isobutane reached up to 28% for this spherical activated carbon, and the selectivity of isobutene reached up to 96%. Isobutane conversion increased with an increase in calcination temperature due to an increase in the oxygen content, whereas the selectivity of isobutene decreased due to the slight decrease in the specific surface area.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85045916560&origin=inward; http://dx.doi.org/10.1007/s12209-018-0144-8; http://link.springer.com/10.1007/s12209-018-0144-8; http://link.springer.com/content/pdf/10.1007/s12209-018-0144-8.pdf; http://link.springer.com/article/10.1007/s12209-018-0144-8/fulltext.html; https://dx.doi.org/10.1007/s12209-018-0144-8; https://link.springer.com/article/10.1007/s12209-018-0144-8
Springer Science and Business Media LLC
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