Preparation of refined bio-oil by catalytic transformation of vapors derived from vacuum pyrolysis of rape straw over modified HZSM-5

Yixi Cai, Yongsheng Fan, Xiaohua Li, Lei Chen and Jiajun Wang

Energy, 2016, vol. 102, issue C, 95-105

Abstract: This work aimed to develop an in-situ upgrading process for production of refined bio-oil from primary biomass pyrolysis vapors. The phosphorus, zinc and titanium modified HZSM-5 were developed and first employed in the process. The yield of refined bio-oil was in the range of 17.85–19.97% along with low oxygen content (18.06–20.04%), high pH value (4.96–5.02), low dynamic viscosity (5.85–6.02 mm2/s), high HHV (higher heating value) (32.70–33.98 MJ/kg) and high hydrocarbon content. However, the composition of hydrocarbon varied with modified elements, so the catalytic mechanism of modified HZSM-5 was discussed. Simultaneously, anti-coking performance of modified catalyst was investigated to evaluate sustainability of the process. This work demonstrated that the refined bio-oil produced in this study basically met the technical requirements of combustion in power machinery, which provided a useful way to utilize renewable lignocellulose biomass. Though anti-coking capability of modified HZSM-5 was enhanced, coke deposition still hindered the continuous production of refined bio-oil to a certain extent.

Keywords: Rape straw; Vacuum pyrolysis; In-situ upgrading; Refined bio-oil; Modified HZSM-5 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544216301025
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:102:y:2016:i:c:p:95-105

DOI: 10.1016/j.energy.2016.02.051

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().