PMID- 23707909 OWN - NLM STAT- MEDLINE DCOM- 20140114 LR - 20151119 IS - 1873-2976 (Electronic) IS - 0960-8524 (Linking) VI - 140 DP - 2013 Jul TI - Synthesis gas production through biomass direct chemical looping conversion with natural hematite as an oxygen carrier. PG - 138-45 LID - S0960-8524(13)00669-X [pii] LID - 10.1016/j.biortech.2013.04.055 [doi] AB - Biomass direct chemical looping (BDCL) conversion with natural hematite as an oxygen carrier was conducted in a fluidized bed reactor under argon atmosphere focusing on investigation the cyclic performance of oxygen carrier. The presence of oxygen carrier can evidently promote the biomass conversion. The gas yield and carbon conversion increased from 0.75 Nm(3)/kg and 62.23% of biomass pyrolysis to 1.06 Nm(3)/kg and 87.63% of BDCL, respectively. The components of the gas product in BDCL were close to those in biomass pyrolysis as the cyclic number increased. The gas yield and carbon conversion decreased from 1.06 Nm(3)/kg and 87.63% at 1st cycle to 0.93 Nm(3)/kg and 77.18% at 20th cycle, respectively, due to the attrition and structural changes of oxygen carrier. X-ray diffraction (XRD) analysis showed that the reduction extent of oxygen carrier increased with the cycles. Scanning electron microscope (SEM) and pore structural analysis displayed that agglomeration was observed with the cycles. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Huang, Zhen AU - Huang Z AD - Key Laboratory of Renewable Energy and Gas Hydrate of Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, CAS, Guangzhou 510640, China. FAU - He, Fang AU - He F FAU - Feng, Yipeng AU - Feng Y FAU - Zhao, Kun AU - Zhao K FAU - Zheng, Anqing AU - Zheng A FAU - Chang, Sheng AU - Chang S FAU - Li, Haibin AU - Li H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130422 PL - England TA - Bioresour Technol JT - Bioresource technology JID - 9889523 RN - 0 (Ferric Compounds) RN - 0 (Gases) RN - 1K09F3G675 (ferric oxide) RN - S88TT14065 (Oxygen) SB - IM MH - *Biomass MH - Biotechnology/*methods MH - Ferric Compounds/*pharmacology MH - Gases/*metabolism MH - Microscopy, Electron, Scanning MH - Oxygen/*pharmacology MH - Porosity MH - Temperature MH - X-Ray Diffraction EDAT- 2013/05/28 06:00 MHDA- 2014/01/15 06:00 CRDT- 2013/05/28 06:00 PHST- 2013/01/29 00:00 [received] PHST- 2013/04/15 00:00 [revised] PHST- 2013/04/15 00:00 [accepted] PHST- 2013/05/28 06:00 [entrez] PHST- 2013/05/28 06:00 [pubmed] PHST- 2014/01/15 06:00 [medline] AID - S0960-8524(13)00669-X [pii] AID - 10.1016/j.biortech.2013.04.055 [doi] PST - ppublish SO - Bioresour Technol. 2013 Jul;140:138-45. doi: 10.1016/j.biortech.2013.04.055. Epub 2013 Apr 22.