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Debottlenecking a P...
Debottlenecking a Pulp Mill by Producing Biofuels from Black Liquor in Three Steps
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- Di Francesco, Davide (author)
- Stockholms universitet,Institutionen för organisk kemi
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Dahlstrand, Christian (author)
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Löfstedt, Joakim (author)
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Orebom, Alexander (author)
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Verendel, Johan (author)
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Carrick, Christopher (author)
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Håkansson, Åsa (author)
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Eriksson, Sören (author)
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Rådberg, Henrik (author)
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Wallmo, Henrik (author)
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Henrik, Martin (author)
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Huber, Florian (author)
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Federsel, Christopher (author)
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Backmark, Mattias (author)
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- Samec, Joseph S. M. (author)
- Stockholms universitet,Institutionen för organisk kemi,RenFuel AB, Sweden
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(creator_code:org_t)
- 2021-05-06
- 2021
- English.
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In: ChemSusChem. - : Wiley. - 1864-5631 .- 1864-564X. ; 14:11, s. 2414-2425
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Abstract
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- By extracting lignin, pulp production can be increased without heavy investments in a new recovery boiler, the typical bottleneck of a pulp mill. The extraction is performed by using 0.20 and 0.15 weight equivalents of CO2 and H2SO4 respectively. Herein, we describe lignin esterification with fatty acids using benign reagents to generate a lignin ester mixable with gas oils. The esterification is accomplished by activating the fatty acid and lignin with acetic anhydride which can be regenerated from the acetic acid recycled in this reaction. The resulting mass balance ratio is fatty acid/lignin/acetic acid (2 : 1 : 0.1). This lignin ester can be hydroprocessed to generate hydrocarbons in gasoline, aviation, and diesel range. A 300-hour continuous production of fuel was accomplished. By recirculating reagents from both the esterification step and applying a water gas shift reaction on off-gases from the hydroprocessing, a favorable overall mass balance is realized.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Di Francesco, Da ...
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Dahlstrand, Chri ...
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Löfstedt, Joakim
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Orebom, Alexande ...
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Verendel, Johan
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Carrick, Christo ...
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show more...
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Håkansson, Åsa
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Eriksson, Sören
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Rådberg, Henrik
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Wallmo, Henrik
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Henrik, Martin
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Huber, Florian
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Federsel, Christ ...
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Backmark, Mattia ...
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Samec, Joseph S. ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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ChemSusChem
- By the university
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Stockholm University