scholarly journals HHV Predicting Correlations for Torrefied Biomass Using Proximate and Ultimate Analyses

2017 ◽  
Vol 4 (4) ◽  
pp. 7 ◽  
Author(s):  
Daya Nhuchhen ◽  
Muhammad Afzal
Keyword(s):  
Torrefied Biomass ◽  
Proximate And Ultimate Analyses

scholarly journals Correlations to Predict Elemental Compositions and Heating Value of Torrefied Biomass

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2443 ◽  
Author(s):  
Mahmudul Hasan ◽  
Yousef Haseli ◽  
Ernur Karadogan
Keyword(s):  
Carbon Content ◽  
Hydrogen Content ◽  
Woody Biomass ◽  
Coefficient Of Determination ◽  
Mass Yield ◽  
Solid Mass ◽  
Empirical Correlations ◽  
Heating Value ◽  
Torrefied Biomass ◽  
Data Points

Measurements reported in the literature on ultimate analysis of various types of torrefied woody biomass, comprising 152 data points, have been compiled and empirical correlations are developed to predict the carbon content, hydrogen content, and heating value of a torrefied wood as a function of solid mass yield. The range of torrefaction temperature, residence time and solid yield of the collected data is 200–300 °C, 5–60 min and 58–97%, respectively. Two correlations are proposed for carbon content with a coefficient of determination ( R 2 ) of 81.52% and 89.86%, two for hydrogen content with R 2 of 79.01% and 88.45%, and one for higher heating value with R 2 of 92.80%. The root mean square error (RMSE) values of the proposed correlations are 0.037, 0.028, 0.059, 0.043 and 0.023, respectively. The predictability of the proposed relations is examined with an additional set of experimental data and compared with the existing correlations in the literature. The new correlations can be used as a useful tool when designing torrefaction plants, furnaces, or gasifiers operating on torrefied wood.

scholarly journals Torrefied Biomass Pellets—Comparing Grindability in Different Laboratory Mills

Energies ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 794 ◽  
Author(s):  
Jan Khalsa ◽  
Diana Leistner ◽  
Nadja Weller ◽  
Leilani Darvell ◽  
Ben Dooley
Keyword(s):  
Torrefied Biomass

Carbon, sulfur and nitrogen oxide emissions from combustion of pulverized raw and torrefied biomass

Fuel ◽  
2017 ◽  
Vol 188 ◽  
pp. 310-323 ◽  
Author(s):  
Xiaohan Ren ◽  
Rui Sun ◽  
Xiaoxiao Meng ◽  
Nikita Vorobiev ◽  
Martin Schiemann ◽  
...  
Keyword(s):  
Nitrogen Oxide ◽  
Nitrogen Oxide Emissions ◽  
Torrefied Biomass

scholarly journals Torrefaction of Almond and Walnut Byproducts

2021 ◽  
Vol 9 ◽  
Author(s):  
Zach McCaffrey ◽  
Lennard Torres ◽  
Bor-Sen Chiou ◽  
Saulo Rocha Ferreira ◽  
Luiz Eduardo Silva ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Moisture Absorption ◽  
Calorific Value ◽  
Dynamic Vapor Sorption ◽  
Energy Applications ◽  
Thermochemical Process ◽  
Heat Treated ◽  
The Us ◽  
Torrefied Biomass ◽  
Different Temperatures

While the US nut industry is growing, markets for nut by-products, particularly nutshells and tree prunings, have not kept pace. Torrefaction is a thermochemical process used to improve physicochemical properties of biomass for energy and other applications. The goal of the paper was to characterize the effects of a range of torrefaction conditions on the properties of nut by-product feedstock. The process consists of thermal treatment of biomass at a temperature between 200 and 300°C in the absence of oxygen, where final material properties of the torrefied biomass depend on the temperature, heating rate, and residence time. In general, torrefied biomass exhibits higher hydrophobicity and calorific value with reduced moisture absorption compared to untreated biomass, making it an ideal fuel source for energy applications compared to raw biomass. In this study, almond shells of soft, semi-soft, and hardshell varieties, as well as walnut shells and almond wood, were torrefied at two different temperatures (230 and 290°C) and three different residence times (20, 40, and 60 min) in order to characterize the physicochemical properties. The thermal behavior of raw and heat-treated biomass was investigated by TGA analysis, elemental analysis, pH, helium pycnometry, FTIR spectroscopy, and dynamic vapor sorption analysis.

scholarly journals Flame characteristics of pulverized torrefied-biomass combusted with high-temperature air

2013 ◽  
Vol 160 (11) ◽  
pp. 2585-2594 ◽  
Author(s):  
Jun Li ◽  
Enrico Biagini ◽  
Weihong Yang ◽  
Leonardo Tognotti ◽  
Wlodzimierz Blasiak
Keyword(s):  
High Temperature ◽  
Torrefied Biomass
Sign in / Sign up

Export Citation Format

Share Document