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Sustainability metrics for a fossil- and renewable-based route for 1,2-propanediol production: A comparison

Paper ID Volume ID Publish Year Pages File Format Full-Text
53997 46992 2015 7 PDF Available
Title
Sustainability metrics for a fossil- and renewable-based route for 1,2-propanediol production: A comparison
Abstract

•We compare the 1,2-PDO production either from fossil or biomass resources on the base of predefined green metrics.•The 3-step route to 1,2-PDO from propylene involving the chlorhydrin process for propylene oxide formation was evaluated.•The biomass-based route including dehydration–hydrogenation steps was also evaluated.•The evaluation shows that both routes are competitive but the production of valuable co-products needs to be included.

Historically, 1,2-PDO had always been exclusively produced from fossil resources and many routes have been industrially commercialized. More recently, new strategies based on renewable resources have allowed for the development of technology for the commercial production of 1,2-PDO from glycerol. In the present study the fossil-based chlorhydrin process is taken as a reference and compared to the catalytic hydrogenolysis of glycerol route to evaluate which one is the most advantageous in terms of sustainability. To this extent, a concise and practical approach is employed that allows for an early stage comparison based on four preselected green metrics that estimate material and energy efficiency, economic added value and land use. The evaluation shows that the renewable-based routes can provide a viable alternative to the petrochemical route and both approaches must therefore be considered in a global process. Importantly, the production of valuable co-products needs to be included in such an assessment as these strongly influence its outcome.

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Keywords
1,2-Propanediol; Glycerol; Propylene oxide; Green metrics
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Sustainability metrics for a fossil- and renewable-based route for 1,2-propanediol production: A comparison
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 239, 1 January 2015, Pages 31–37
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us