title: Thermogravimetric and kinetic study of Pinyon pine in the various gases.
abstract: As a renewable resource, Pinyon pine can be converted into bio-oil, gas, and char through pyrolysis. It is known that recycling of the non-condensable gases, which are produced by fast pyrolysis, can increase liquid yield and decrease char yield. In this study, pyrolysis characteristics and kinetics of Pinyon pine were investigated in TGA using simulated non-condensable gases (N2, H2/N2, H2/CO2, and He/CO/H2). The apparent activation energy of Pinyon pine increased from 43.9 to 160.3kJ mol(-1) with increasing pyrolysis conversion from 5% to 95% in pure nitrogen, and reaction order was 1.35. When hydrogen (H2) and carbon monoxide (CO) mixtures were used as simulated gases, the maximum degradation temperature and activation energy decreased by 4-11°C and 6.1-10.2kJ/mol, respectively. The results show that recycling of non-condensable gases could positively influence the fast pyrolysis of biomass.
authors: Department of Chemical Engineering, Kangwon National University, 346, Joongang-ro, Samcheok, Gangwon-do 363-883, Republic of Korea. Electronic address: sskim2008@kangwon.ac.kr.
authors: Seung-Soo
authors: SS
authors: Kim
authors: Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
authors: Alok
authors: A
authors: Shenoy
authors: Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA. Electronic address: foster.agblevor@usu.edu.
authors: Foster A
authors: FA
authors: Agblevor
mesh_terms: D018533:Biomass; D005740:Gases / Q000494:pharmacology*; D007700:Kinetics; D028223:Pinus / Q000187:drug effects*; D013816:Thermodynamics; D013818:Thermogravimetry / Q000379:methods*
chemical_list: D005740:Gases
keywords: Biomass; Pinyon pine; Pyrolysis; Simulated gas; Thermogravimetric analysis