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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

RENEWABLE ENERGY

ISSN

0960-1481

e-ISSN

—

Svazek periodika

168

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

593-605

Kód UT WoS článku

000617118000013

EID výsledku v databázi Scopus

2-s2.0-85098515669