Journal Pre-proof Solar Thermochemical Conversion of Carbonaceous Materials into Syngas by Co- Gasification Mohamed R. Gomaa, Ramadan J. Mustafa, Nesrien Al-Dmour PII: S0959-6526(19)34055-7 DOI: https://doi.org/10.1016/j.jclepro.2019.119185 Reference: JCLP 119185 To appear in: Journal of Cleaner Production Received Date: 06 June 2019 Accepted Date: 04 November 2019 Please cite this article as: Mohamed R. Gomaa, Ramadan J. Mustafa, Nesrien Al-Dmour, Solar Thermochemical Conversion of Carbonaceous Materials into Syngas by Co-Gasification, Journal of (2019), Cleaner Production https://doi.org/10.1016/j.jclepro.2019.119185 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2019 Published by Elsevier.