The effect of torrefaction on the chemistry of fast-pyrolysis bio-oil

Meng, Jiajia; Park, Junyeong; Tilotta, David C.; Park, Sunkyu

doi:10.1016/j.biortech.2012.01.159

Cited by 188 publications

(126 citation statements)

References 26 publications

Supporting

Mentioning

114

Contrasting

Order By: Relevance

“…Such feedstock has the ability to produce a concentrated good quality bio-oil through a fast pyrolysis process (Meng et al, 2012). Prando et al (2013) studied a combined heat and power (CHP) system using the torrefied biomass in the gasification process.…”

Section: The Application Of the Torrefied Biomassmentioning

confidence: 99%

A Comprehensive Review on Biomass Torrefaction

Nhuchhen¹,

Basu²,

Acharya³

2014

IJREB

160

143

View full text Add to dashboard Cite

Biomass is a versatile energy resource that could be used as a sustainable energy resource in solid, liquid and gaseous form of energy sources. Torrefaction is an emerging thermal biomass pretreatment method that has an ability to reduce the major limitations of biomass such as heterogeneity, lower bulk density, lower energy density, hygroscopic behavior, and fibrous nature. Torrefaction, aiming to produce high quality solid biomass products, is carried out at 200-300 °C in an inert environment at an atmospheric pressure. The removal of volatiles through different decomposition reactions is the basic principle behind the torrefaction process. Torrefaction upgrades biomass quality and alters the combustion behavior, which can be efficiently used in the co-firing power plant. This paper presents a comprehensive review on torrefaction of biomass and their characteristics. Despite of the number of advantages, torrefaction is motivated mainly for thermochemical conversion process because of its ability to increase hydrophobicity, grindability and energy density of biomass. In addition to this, torrefied biomass could be used to replace coal in the metallurgical process, and promoted as an alternative of charcoal.

show abstract

Section: The Application Of the Torrefied Biomassmentioning

confidence: 99%

A Comprehensive Review on Biomass Torrefaction

Nhuchhen¹,

Basu²,

Acharya³

2014

IJREB

160

143

View full text Add to dashboard Cite

show abstract

“…Torrefaction is an important pretreatment for SOMR for purposes of producing more qualified fuel that can be stored without degradation. Also it is known that torrefaction provides more efficient gasification (Prins et al 2006c) and pyrolysis (Meng et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Torrefaction of Solid Olive Mill Residue

Cellatoğlu

İlkan

2015

BioResources

View full text Add to dashboard Cite

Solid olive mill residue (SOMR), a lignocellulosic material obtained from olive oil extraction, is a potential attractive source of biomass for energy generation. Although SOMR can be directly combusted, a pretreatment can reduce the oxygen and moisture contents of raw SOMR for efficient energy generation. Torrefaction is a promising thermal pretreatment method for improving fuel characteristics of raw SOMR. In this study, torrefaction characteristics of SOMR were investigated at three different torrefaction temperatures and holding times. Ultimate and proximate analysis results of torrefied SOMR were compared with dried SOMR. Results indicate that an increased torrefaction temperature and holding time can lead to a more qualified solid fuel with higher carbon content, increased higher heating value (HHV), and reduced oxygen content. Further, increased HHV and removal of volatiles are indicators of more energy-dense solid fuel obtained from SOMR. Experimental results revealed that moderately severe torrefaction conditions with holding times not exceeding 30 minutes are suitable for torrefaction of SOMR.

show abstract

“…A schematic of the lab-scale fluid-bed reactor is shown in Figure 1 (Meng et al, 2012). The system consists of a screw feeder, an externally heated fluid bed, a char collection cyclone, and a bio-oil collection system consisting of two water-cooled condensers and an electrostatic precipitator (ESP).…”

Section: Fluidized-bed Pyrolysis Reactor and Bio-oil Characterizationmentioning

confidence: 99%

“…Switchgrass is recognized as a good bioenergy crop due to its high biomass output and ability to be grown on marginal soils (Mitchell et al, 2016). Pine residues are defined as small diameter (2 or 6 inches) tree tops, limbs, and needles that are generally considered as waste during harvesting FIGURE 1 | Lab-scale fluidized-bed fast pyrolysis reactor (Meng et al, 2012).…”

Section: Feedstock Compositionmentioning

confidence: 99%

Blended Feedstocks for Thermochemical Conversion: Biomass Characterization and Bio-Oil Production From Switchgrass-Pine Residues Blends

et al. 2018

Self Cite

View full text Add to dashboard Cite

An abundant, low-cost, and high-quality supply of lignocellulosic feedstock is necessary to realize the large-scale implementation of biomass conversion technologies capable of producing renewable fuels, chemicals, and products. Barriers to this goal include the variability in the chemical and physical properties of available biomass, and the seasonal and geographic availability of biomass. Blending several different types of biomass to produce consistent feedstocks offers a solution to these problems and allows for control over the specifications of the feedstocks. For thermochemical conversion processes, attributes of interest include carbon content, total ash, specific inorganics, density, particle size, and moisture content. In this work, a series of switchgrass and pine residues blends with varying physical and chemical properties were evaluated. Physical and chemical properties of the pure and blended materials were measured, including compositional analysis, elemental analysis, compressibility, flowability, density, and particle size distribution. To screen blends for thermochemical conversion behavior, the analytical technique, pyrolysis gas chromatography mass spectrometry (Py-GC/MS), was used to analyze the vapor-phase pyrolysis products of the various switchgrass/pine residues blends. The py-GC/MS findings were validated by investigating the bio-oils produced from the selected blends using a lab-scale fluidized-bed pyrolysis reactor system. Results indicate that the physical properties of blended materials are proportional to the blend ratio of pure feedstocks. In addition, pyrolysis of pine residues resulted in bio-oils with higher carbon content and lower oxygen content, while switchgrass derived pyrolysis products contained relatively greater amount of anhydrosugars and organic acids. The distribution of the pyrolysis vapors and isolated bio-oils appear to be a simple linear combination of the two feedstocks. The concentration of alkali and alkaline Edmunds et al.Blended Feedstocks for Thermochemical Conversion earth metals (Ca, K, Mg, and Na) in the blended feedstocks were confirmed to be a critical parameter due to their negative effects on the bio-oil yield. This work demonstrates that blending different sources of biomass can be an effective strategy to produce a consistent feedstock for thermochemical conversion.

show abstract

The effect of torrefaction on the chemistry of fast-pyrolysis bio-oil

Cited by 188 publications

References 26 publications

A Comprehensive Review on Biomass Torrefaction

A Comprehensive Review on Biomass Torrefaction

Torrefaction of Solid Olive Mill Residue

Blended Feedstocks for Thermochemical Conversion: Biomass Characterization and Bio-Oil Production From Switchgrass-Pine Residues Blends

Contact Info

Product

Resources

About