skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Millisecond Pulsed Films Unify the Mechanisms of Cellulose Fragmentation

Journal Article · · Chemistry of Materials
 [1];  [2];  [1]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Univ. of Washington, Seattle, WA (United States)

The mechanism of crystalline cellulose fragmentation has been debated between classical models proposing end-chain or intrachain scission to form short-chain (molten) anhydro-oligomer mixtures and volatile organic compounds. Models developed over the last few decades suggest global kinetics consistent with either mechanism, but validation of the chain-scission mechanism via measured reaction rates of cellulose has remained elusive. To resolve these differences, we introduce a new thermal-pulsing reactor four orders of magnitude faster than conventional thermogravimetic analysis (106 vs 102 °C/min) to measure the millisecond-resolved evolution of cellulose and its volatile products at 400–550 °C. By comparison of cellulose conversion and furan product formation kinetics, both mechanisms are shown to occur with the transition from chain-end scission to intrachain scission above 467 °C concurrent with liquid formation comprised of short-chain cellulose fragments.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012659
OSTI ID:
1865816
Journal Information:
Chemistry of Materials, Vol. 28, Issue 9; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (37)

Effect of cellulose crystallinity on the formation of a liquid intermediate and on product distribution during pyrolysis journal March 2013
Thermal Degradation of Wood and Cellulose journal March 1956
Kinetics of the pyrolysis of cellulose in the temperature range 250–300°C. journal October 1966
Kinetics and Mechanism of Cellulose Pyrolysis journal October 2009
Product distribution from fast pyrolysis of glucose-based carbohydrates journal November 2009
Modeling chemical and physical processes of wood and biomass pyrolysis journal February 2008
Pyrolytic conversion of cellulose to fuels: levoglucosan deoxygenation via elimination and cyclization within molten biomass journal January 2012
Aerosol generation by reactive boiling ejection of molten cellulose journal January 2011
The Impact of Boreal Forest Fire on Climate Warming journal November 2006
The Influence of Canadian Forest Fires on Pollutant Concentrations in the United States journal April 2000
A kinetic model for pyrolysis of cellulose journal June 1979
Introduction to pyrolysis of biomass journal April 1982
On the mechanism of the rapid pyrolysis of cellulose journal January 1986
Revealing the chemistry of biomass pyrolysis by means of tunable synchrotron photoionisation-mass spectrometry journal January 2013
Cellulose pyrolysis kinetics: An historical review on the existence and role of intermediate active cellulose journal March 2012
Radiant flash pyrolysis of cellulose—Evidence for the formation of short life time intermediate liquid species journal September 1998
Reactive boiling of cellulose for integrated catalysis through an intermediate liquid journal January 2009
Char yield on pyrolysis of cellulose journal February 1975
Is the Broido-Shafizadeh Model for Cellulose Pyrolysis True? journal November 1994
Cellulose Pyrolysis Kinetics:  Revisited journal April 1998
Cellulose Pyrolysis Kinetics: The Current State of Knowledge journal March 1995
Critical Review of the Global Chemical Kinetics of Cellulose Thermal Decomposition journal April 2015
A mechanistic model of fast pyrolysis of glucose-based carbohydrates to predict bio-oil composition journal January 2012
What is active cellulose in pyrolysis? An approach based on reactivity of cellulose reducing end journal March 2014
Thermal glycosylation and degradation reactions occurring at the reducing ends of cellulose during low-temperature pyrolysis journal February 2011
The Alpha–Bet(a) of Glucose Pyrolysis: Computational and Experimental Investigations of 5-Hydroxymethylfurfural and Levoglucosan Formation Reveal Implications for Cellulose Pyrolysis journal May 2014
Experimental and Mechanistic Modeling of Fast Pyrolysis of Neat Glucose-Based Carbohydrates. 1. Experiments and Development of a Detailed Mechanistic Model journal August 2014
Unraveling the Reactions that Unravel Cellulose journal June 2012
Ab Initio Dynamics of Cellulose Pyrolysis: Nascent Decomposition Pathways at 327 and 600 °C journal August 2012
Unveiling the initial pyrolytic mechanisms of cellulose by DFT study journal May 2015
Thermochemistry and Reaction Barriers for the Formation of Levoglucosenone from Cellobiose journal October 2011
Thermal Degradation of Methyl β- d -Glucoside. A Theoretical Study of Plausible Reaction Mechanisms journal September 2009
Levoglucosan Formation from Crystalline Cellulose: Importance of a Hydrogen Bonding Network in the Reaction journal November 2013
Revealing pyrolysis chemistry for biofuels production: Conversion of cellulose to furans and small oxygenates journal January 2012
Review of fast pyrolysis of biomass and product upgrading journal March 2012
Recent developments in fast pyrolysis of ligno-cellulosic materials journal June 2013
Alkaline-Earth-Metal-Catalyzed Thin-Film Pyrolysis of Cellulose journal January 2016

Cited By (9)

Lignin as a Wood‐Inspired Binder Enabled Strong, Water Stable, and Biodegradable Paper for Plastic Replacement journal October 2019
Advancing catalytic fast pyrolysis through integrated multiscale modeling and experimentation: Challenges, progress, and perspectives
  • Ciesielski, Peter N.; Pecha, M. Brennan; Bharadwaj, Vivek S.
  • Wiley Interdisciplinary Reviews: Energy and Environment, Vol. 7, Issue 4 https://doi.org/10.1002/wene.297
journal April 2018
Measuring biomass fast pyrolysis kinetics: State of the art
  • SriBala, Gorugantu; Carstensen, Hans-Heinrich; Van Geem, Kevin M.
  • Wiley Interdisciplinary Reviews: Energy and Environment, Vol. 8, Issue 2 https://doi.org/10.1002/wene.326
journal September 2018
Applications of cellulose and chitin/chitosan derivatives and composites as antibacterial materials: current state and perspectives journal January 2019
Coconut oil-cellulose beaded microfibers by coaxial electrospinning: An eco-model system to study thermoregulation of confined phase change materials journal December 2018
Room-temperature dissolution and chemical modification of cellulose in aqueous tetraethylammonium hydroxide–carbamide solutions journal December 2019
Thermal properties of silica-coated cellulose fibers for increased fire-resistance journal June 2017
Competing reactions limit levoglucosan yield during fast pyrolysis of cellulose journal January 2019
Biomimetic cellulose/calcium-deficient-hydroxyapatite composite scaffolds fabricated using an electric field for bone tissue engineering journal January 2018