Prediction of fast pyrolysis products yields using lignocellulosic compounds and ash contents
Trubetskaya, Anna Timko, Michael T. Umeki, Kentaro
Trubetskaya, Anna
Timko, Michael T.
Umeki, Kentaro
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Publication Date
2019-10-26
Type
Article
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Citation
Trubetskaya, Anna, Timko, Michael T., & Umeki, Kentaro. (2019). Prediction of fast pyrolysis products yields using lignocellulosic compounds and ash contents. Applied Energy, 257, 113897. doi: 10.1016/j.apenergy.2019.113897
Abstract
The effects of lignocellulosic biomass composition on product yields and distributions were studied under high-temperature pyrolysis conditions (800–1250 C) in a drop tube reactor. Several types of biomass were studied along with xylan, cellulose, and two types of lignin as model feeds. Among the model feeds, soot yields obtained from lignin pyrolysis were greater than those obtained from cellulose or xylan. Cellulose pyrolysis produced mostly gaseous products, along with small amounts of tars. Impregnation of lignin with alkali metals greatly reduced tar and soot formation, simultaneously increasing the hydrogen content of the syngas product. An empirical model predicted with reasonable accuracy trends in the product yields obtained from pyrolysis of whole biomass samples using as input data obtained from model feeds composition data and the pyrolysis temperature. Reaction temperature and ash content both have a strong influences on char yield, whereas gas yields were mostly affected by the reaction temperature.
Publisher
Elsevier
Publisher DOI
10.1016/j.apenergy.2019.113897
Rights
Attribution-NonCommercial-NoDerivs 3.0 Ireland