Bio-oil upgraded by catalytic co-pyrolysis of sawdust with tyre. (1st January 2014)

• Record Type: Journal Article
• Authors: Cao, Qing; Zhou, Cunming; Zhong, Cungui; Jin, Li'e
• Is Part Of: International journal of oil, gas and coal technology. Volume 8:Number 2(2014)
• Page Start: 235
• Page End: 250
• Publication Date: 2014-01-01
• Subjects: sawdust -- catalysis -- co-pyrolysis -- tyre -- bio-oil -- upgrade; Petroleum as fuel -- Periodicals; Gas as fuel -- Periodicals; Coal -- Periodicals; Biomass energy -- Periodicals; Hydrogen as fuel -- Periodicals; 662.6
• Languages: English
• ISSNs: 1753-3309

Abstract

We have investigated the improvement in the quality of bio-oils by catalytic co-pyrolysis of sawdust and tyre mixture in an integrated reactor. The vapours from co-pyrolysis are allowed to pass through a desulfurising layer composed of zinc oxide and then through the catalytic layer consisting of silver (Ag), palladium (Pd), molybdenum (Mo), or vanadium (V) supported over SBA-15 or HZSM-5. The bio-oils produced by the condensation of vapours are systematically analysed using an elemental analyser, calorimeter, gel permeation chromatograph, densimeter, viscometer, and thermal analyser. Results indicate that the quality of bio-oils can be effectively improved by using Ag/SBA-15 and Pd/SBA-15. The typical bio-oil (SSS40) produced by co-pyrolysis of the mixture containing 40 wt.% sawdust and 60 wt.% tyre with Ag/SBA-15 catalyst have properties similar to that of the diesel fuel no. 0 #. On the other hand, the molecular weight distribution of the upgraded bio-oils obtained from the mixture of 40 wt.% saw dust and 60 wt.% waste tyre with Ag/HZSM-5 as catalyst is close to that of commercial diesel fuel no. 0#. Based on the results, we have also proposed the kinetics associated with the combustion of typical upgraded bio-oil.