Effect of lignocellulosic composition on biomass grindability for carbon-free power generation Role of hemicellulose variation via pretreatment
0
Citation
32
Reference
10
Related Paper
Keywords:
Hemicellulose
Lignocellulosic Biomass
Carbon fibers
Hemicellulose
Lignocellulosic Biomass
Cite
Citations (348)
Lignocellulosic biomass consists of cellulose, hemicellulose, and lignin, which have the potential to produce the so-called green chemicals. Many processes are available at different scales (e.g. labs, pilots, demos, commercials), utilizing lignocellulosic biomass as the raw material. Due to its complicated chemical structures, lignocellulosic biomass must be pretreated before it can be processed further. Simultaneous separation of cellulose, hemicellulose, and lignin from the biomass is an important step to maximize the full potential of the biomass. In this review, several well-known biomass pretreatment technologies are evaluated. These are low pH process (e.g. dilute acid, steam explosion, hot water liquid, and concentrated acid), high pH (e.g. NaOH, lime, NH3), organosolv, ozonolysis, CO2 explosion, and ionic liquids. The objective of this review is to understand how effective the pretreatment process for separating cellulose, hemicellulose, and lignin. Based on this review, organosolv is the only pretreatment process that is capable of separating cellulose, C5 sugars (from hemicellulose), and lignin, simultaneously. This process is currently at pilot scales of 30 – 100 ton per day of biomass feedstock.
Hemicellulose
Organosolv
Lignocellulosic Biomass
Steam explosion
Cite
Citations (4)
Hemicellulose
Lignocellulosic Biomass
Enzymatic Hydrolysis
Cite
Citations (0)
Renewable fuels from lignocellulosic biomass are an appealing option because they can seamlessly integrate into the existing fuel distribution infrastructure. Lignocellulosic biomass constitutes nonedible plant material obtained from plant cell walls. The natural recalcitrance of lignocellulosic biomass poses a challenge in accessing the cell wall carbohydrates during biochemical conversion. Despite various approaches, enzymatic hydrolysis of lignocellulosic biomass remains economically impractical due to incomplete knowledge about biomass recalcitrance and the influence of environmental factors on biomass quality.
Lignocellulosic Biomass
Deconstruction (building)
Renewable resource
Cite
Citations (0)
Lignocellulosic biomass, as a sustainable bioenergy source, can be used to supplement fossil fuel. However, the utilization of lignocellulosic biomass for energy production has not been widely applied because of the complicated and stable structure of plant cell wall. Hydrothermal pretreatment of lignocellulosic biomass is an efficient method to disrupt lignin and hemicellulose and expose cellulose. Nowadays, many literatures demonstrated the mechanisms of hydrothermal pretreatment and the change of lignocellulosic biomass (including cellulose, hemicellulose and lignin) during hydrothermal pretreatment. Up to now, however, there is no review on this field. This paper reviews the research effort on hydrothermal pretreatment of lignocellulosic biomass and explains how the hydrothermal pretreatment affects the properties of lignocellulosic biomass. This review puts emphasis on the detailed changes of cellulose, hemicellulose and lignin during hydrothermal pretreatment. In addition, the future research directions are also prospected. Keywords: Hydrothermal pretreatment, lignocellulosic biomass, cellulose, hemicellulose, lignin.
Hemicellulose
Lignocellulosic Biomass
Cite
Citations (62)
Using gamma-valerolactone (GVL) as solvent, the cellulosic fraction of lignocellulosic biomass can be converted into levulinic acid (LA), while at the same conditions the hemicellulose fraction can be converted into furfural. This process allows for the conversion of hemicellulose and cellulose simultaneously in a single reactor, thus eliminating pre-treatment steps to fractionate biomass and simplifying product separation.
Hemicellulose
Levulinic acid
Lignocellulosic Biomass
Cellulosic ethanol
Fraction (chemistry)
Cite
Citations (356)
We demonstrate the design of a solvent system for efficient production and enhanced separation of carbohydrates from lignocellulosic biomass.
Lignocellulosic Biomass
Sugar production
Cite
Citations (60)
Hemicellulose
Lignocellulosic Biomass
Cite
Citations (9)
Hemicellulose
Lignocellulosic Biomass
Cite
Citations (133)
Hemicellulose
Lignocellulosic Biomass
Cite
Citations (7)