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Minimum number of days required for a reliable estimate of daily step count and energy expenditure, in people with MS who walk unaided

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posted on 2022-08-24, 13:40 authored by Michelle NorrisMichelle Norris, ROSS ANDERSONROSS ANDERSON, Robert W. Motl, SARA HAYESSARA HAYES, SUSAN COOTESUSAN COOTE
Furfural is a potential platform chemical derived from biomass, which has gained increased attention as a potential substitute for the displacement of petrochemicals and the production of biofuels. The catalytic effect of different metal tri-chlorides (FeCl3, AlCl3 and CrCl3) with formic acid (FA) was investigated for the selective conversion of D-xylose to furfural in aqueous solutions. Reactions were carried out at various temperatures (100–170 °C), FA concentrations (0–65 wt%), and metal chloride concentrations (0.2–0.8 M). Lyxose was identified as primary intermediate of the conversion of xylose at low temperatures and FA concentrations. A mixture containing 0.4 M AlCl3 and 55 wt% FA was the most selective and active system for the production of furfural at low temperatures (130 °C, selectivity ≈70–90%). A simplified kinetic model was developed to describe the overall xylose conversion and furfural formation under the selected conditions, offering a valuable tool for process optimisation and design.

History

Publication

Gait and Posture;53, pp. 201-206

Publisher

Elsevier

Note

peer-reviewed The full text of this article will not be available on ULIR until the embargo expires on the 1/8/2018

Rights

This is the author’s version of a work that was accepted for publication in Gait and Posture. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Gait and Posture, 53, pp. 201-206, http://dx.doi.org/10.1016/j.gaitpost.2017.02.005

Language

English

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