One-stage bio-oil stabilization over a sulphided NiMo/Al2O3 catalyst

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F19%3A43917778" target="_blank" >RIV/60461373:22320/19:43917778 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

One-stage bio-oil stabilization over a sulphided NiMo/Al2O3 catalyst

Original language description

The upgrading of pyrolysis bio-oils is a crucial step before their further use as advanced biofuels. Hydrotreatment is the preferred upgrading process, but the tendency of bio-oils to form carbonaceous deposits and other negative properties cause catalyst deactivation and thus the gradual decrease in product quality. The catalyst deactivation often leads to the termination of experiments after several hours/days of a continuous hydrotreatment. All those problems were recorded even for two-stage bio-oil hydrotreatment that is usually suggested for bio-oil upgrading. We already reached a total time on stream (TOS) 81 h of bio-oil hydrotreatment when different conditions were tested. Now, we decided to maintain the most appropriate conditions (340 °C and 4 MPa) throughout a whole week over a sulphided NiMo/Al2O3 catalyst. We have succeeded in achieving 80 h TOS under the given conditions without an observable increase in pressure drop during the experiment. A detailed analytical characterization of hydrotreatment products and catalyst after the experiment was carried out, analysing both physicochemical properties and chemical composition. This work provided valuable results that will allow us further optimization of catalyst performance, in particular, to suppress its deactivation and, thus, extending its lifetime.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

27th European Biomass Conference and Exhibition, EUBCE 2019

ISBN

978-88-89407-19-6

ISSN

2282-5819

e-ISSN

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Number of pages

5

Pages from-to

1507-1511

Publisher name

ETA-Florence Renewable Energies

Place of publication

Florence

Event location

Lisbon

Event date

May 27, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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