Pyrolysis of Rapeseed Oil Press Cake and Steam Gasification of Solid Residues

被引:8
作者
Nowicki, Lech [1 ]
Siuta, Dorota [1 ]
Markowski, Maciej [2 ]
机构
[1] Lodz Univ Technol, Fac Proc & Environm Engn, Wolczanska 213, PL-90924 Lodz, Poland
[2] EKO SERWIS SC, Wierzbowa 48, PL-90133 Lodz, Poland
关键词
steam gasification; kinetics; rapeseed oil press cake; synthesis gas; TGA-MS analysis; pyrolysis; FIXED-BED REACTOR; GAS-PRODUCTION; BIOMASS GASIFICATION; CHAR; COMBUSTION; DECOMPOSITION; CATALYSTS; KINETICS; YIELD; SLOW;
D O I
10.3390/en13174472
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A deoiled rapeseed press cake (RPC) was pyrolyzed by heating at a slow heating rate to 1000 degrees C in a fixed bed reactor, and the produced char was then gasified to obtain data for the kinetic modeling of the process. The gasification experiments were performed in a thermogravimetric analyzer (TGA) under steam/argon mixtures at different temperatures (750, 800 and 850 degrees C) and steam mole fractions (0.17 and 0.45). The three most commonly used gas-solid kinetic models, the random pore model, the volumetric model and the shrinking core model were used to describe the conversion of char during steam gasification. The objective of the kinetic study was to determine the kinetic parameters and to assess the ability of the models to predict the RPC conversion during steam gasification. A TGA-MS analysis was applied to assess the composition of the product gas. The main steam gasification product of the RPC was hydrogen (approximately 60 mol % of the total product). The volumetric model was able to accurately predict the behavior of the RPC char gasification with steam at temperatures of 750-850 degrees C and steam concentrations less than 0.45 mole fraction. The activation energy and the reaction order with respect to steam were equal to 166 kJ/mol and 0.5, respectively, and were typical values for the gasification of biomass chars with steam
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页数:12
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