Bio-based refinery intermediate production via hydrodeoxygenation of fast pyrolysis bio-oil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F21%3A43920336" target="_blank" >RIV/60461373:22320/21:43920336 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S096014812031973X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S096014812031973X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.renene.2020.12.047" target="_blank" >10.1016/j.renene.2020.12.047</a>

Result language

angličtina

Original language name

Bio-based refinery intermediate production via hydrodeoxygenation of fast pyrolysis bio-oil

Original language description

Pyrolysis bio-oil is unsuitable as transportation fuel due to its chemical composition and high oxygen (&gt;30 wt%) and water (&gt;20 wt%) content rendering the upgrading essential prior any downstream use. The current work investigates the upgrading of a flash pyrolysis bio-oil via mild hydrotreatment (HDT), targeting to a potential intermediate refinery feed. Various operating parameters of HDT were tested, including three temperatures (573, 603 and 633 K), two pressures (4 and 7 MPa) and two H2/bio-oil ratios (506 and 843 NL/L). According to the results, during HDT of bio-oil, massive plugging by coke formed in the reactor. The unsaturated oxygenates in bio-oil are regarded as the predominant coke precursors since they can interact with the catalytic surface. From all the examined conditions, it was found that the longest catalyst life, (5 days on stream), was achieved at 7 MPa pressure, 843 NL/L H2/bio-oil ratio and 603 K temperature. Furthermore, several properties of the initial bio-oil were improved, such as viscosity (156 → 4.9 cSt), carboxylic acids (78 → 0.2 mgKOH/g), density (1.024 → 0.9162 g/ml), and oxygen content (37 → 4 wt%). Conclusively, mild HDT constitutes a promising technological pathway for bio-oil upgrading towards a reliable intermediate refinery feed.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20704 - Energy and fuels

Project

—

Continuities

R - Projekt Ramcoveho programu EK

Publication year

2021

Confidentiality

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

Name of the periodical

RENEWABLE ENERGY

ISSN

0960-1481

e-ISSN

—

Volume of the periodical

168

Issue of the periodical within the volume

May

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

593-605

UT code for WoS article

000617118000013

EID of the result in the Scopus database

2-s2.0-85098515669