Mark T. Maloney earned his B.S. in Chemical Engineering, at the University of Illinois and is currently completing his Ph.D. studies at the University of Wisconsin-Madison. He also has worked as a design engineer for Monsanto Company and as a co-op engineer for Amoco Chemicals Corporation. His research interests are in reaction engineering and separation processes.
An Engineering Analysis of the Production of Xylose by Dilute Acid Hydrolysis of Hardwood Hemicellulose
Article first published online: 4 SEP 2008
Copyright © 1986 American Institute of Chemical Engineers (AIChE)
Volume 2, Issue 4, pages 192–202, December 1986
How to Cite
Maloney, M. T., Chapman, T. W. and Baker, A. J. (1986), An Engineering Analysis of the Production of Xylose by Dilute Acid Hydrolysis of Hardwood Hemicellulose. Biotechnol Progress, 2: 192–202. doi: 10.1002/btpr.5420020407
- Issue published online: 4 SEP 2008
- Article first published online: 4 SEP 2008
- USDA, Forest Service, Forest Products Laboratory
Numerical simulations of various reactors for the production of xylose from hardwood hemicellulose by dilute sulfuric acid hydrolysis have been developed to analyze the effects on reactor performance of heat and mass transfer as well as reaction kinetics. An economic objective function representing the incremental cost of producing a 10% xylose solution for fermentation to ethanol was calculated from the results of the reactor simulations to identify the operating conditions that minimize production costs for each reactor type. Lower production costs were estimated for percolation and continuous counter-current reactors; the cost for xylose production in a continuous co-current reactor is significantly higher. Production of ethanol from hardwood hemicellulose is not economical with any of the reactors considered, but the models developed here may be used to analyze other process alternatives for use of hemicellulose via production of xylose.