Activated carbon prepared from Canadian oil sands coke by CO2 activation: I. Trends in pore development and the effect of pre-oxidation

作者：Karimi Arash; Thinon Olivier; Fournier Joseph; Hill Josephine M^*

来源：Canadian Journal of Chemical Engineering, 2013, 91(9): 1491-1499.

DOI：10.1002/cjce.21774

• oil sands coke
• activated carbon
• physical activation
• pre-oxidation
• pore development

Oil sands coke is a byproduct of oil sands upgrading, which potentially can be used for the production of low cost activated carbons. Activation of oil sands delayed coke was performed by partial CO2-gasification in a tubular fixed bed reactor at 900 degrees C. Pore development during activation initially proceeded almost exclusively by micro-pore formation, and the reaction appeared to follow a shrinking core model. Surface areas up to 646m(2)/g were obtained, and coarser particles reached lower maximum surface areas at lower levels of burn-off than finer particles. Pre-oxidation in air at 270 degrees C resulted in higher maximum surface areas.

• 出版日期2013-9