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Process characteristics and products of olive kernel high temperature steam gasification (HTSG)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.ORCID iD: 0000-0002-1837-5439
2009 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 100, no 8, 2444-2451 p.Article in journal (Refereed) Published
Abstract [en]

Exploitation of olive kernel for bioenergy production, with respect to the green house gases (GHGs) mitigation, is the main aim of this work. In this study, olive kernels were used as a solid biofuel, and high temperature steam gasification (HTSG) was investigated, in the fixed bed unit at KTH Sweden, with regard to hydrogen maximization in the produced gasification gas. Experiments were carried out in a temperature range of 750-1050 degrees C, with steam as the gasifying agent. The behaviour of olive kernels, under residence times from 120 up to 960 s, has been studied. At 1050 degrees C, a medium to high calorific value gas was obtained (LHVgas = 13.62 MJ/Nm(3)). while an acquired H-2/CO molar ratio equal to four proved that olive kernel HTSG gasification could be an effective technology for a hydrogen-rich gas production (similar to 40%vv H-2 in the produced gasification gas at 1050 degrees C). The produced char contained 79%ww of fixed carbon, low chlorine and sulphur content, which enables it for further re-use for energetic purposes. Tar content in the produced gas at 750 degrees C was 124.07 g/Nm(3), while a 1050 degrees C at 79.64% reduction was observed and reached the value of 25.26 g/Nm(3).

Place, publisher, year, edition, pages
2009. Vol. 100, no 8, 2444-2451 p.
Keyword [en]
High, Temperature, Steam, Gasification, Tar, hydrogen-rich gas, biomass air, agricultural residues, energy-production, syngas production, fluidized-bed, tar, catalysts, technologies, gasifier
URN: urn:nbn:se:kth:diva-18194DOI: 10.1016/j.biortech.2008.11.021ISI: 000263582100019ScopusID: 2-s2.0-58549095419OAI: diva2:336240
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-20Bibliographically approved

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