Composition and Properties of Rapeseed Oil Hydrotreating Products over CoMo/Al2O3 and NiMo/Al2O3 Catalysts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43920245" target="_blank" >RIV/60461373:22320/20:43920245 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.0c01112" target="_blank" >https://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.0c01112</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.energyfuels.0c01112" target="_blank" >10.1021/acs.energyfuels.0c01112</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Composition and Properties of Rapeseed Oil Hydrotreating Products over CoMo/Al2O3 and NiMo/Al2O3 Catalysts

Popis výsledku v původním jazyce

Currently, there is an effort to achieve a more widespread use of biofuels, which are an alternative to conventional, petroleum-based fuels in mobile and stationary applications. The conversion of vegetable oils via catalytic hydrotreating to hydrotreated vegetable oil (HVO) is one of the most promising alternatives to produce high-quality biofuels. In this work, the composition and properties of rapeseed oil hydrotreating products gained over sulfided CoMo/γ-Al2O3 and NiMo/γ-Al2O3 catalysts were studied. The experiments were carried out in a laboratory trickle bed reactor in a temperature range of 320−380 °C and pressures of 4 and 8 MPa. The mixture of a rapeseed oil and isooctane was hydrotreated to simulate the coprocessing of rapeseed oil and petroleum fractions. Small amounts of aromatic hydrocarbons and, at higher reaction temperatures, considerably high contents of cycloalkanes and isoalkanes were found in the obtained liquid products. These were specifically alkylated cyclopentanes, cyclohexanes, decalines, benzenes, indanes, tetralines, and naphthalenes. The content of isoalkanes and aromatics in the liquid hydrotreating products gained over both catalysts increased with an increasing reaction temperature. A higher total amount of aromatics was found in the products of the NiMo catalyst because of its higher dehydrogenation activity compared with the CoMo catalyst. The liquid products with a high content of n-alkanes had a very high cetane index and cold filter plugging point, which decreased with an increasing reaction temperature due to the increasing content of isoalkanes and aromatics.

Název v anglickém jazyce

Composition and Properties of Rapeseed Oil Hydrotreating Products over CoMo/Al2O3 and NiMo/Al2O3 Catalysts

Popis výsledku anglicky

Currently, there is an effort to achieve a more widespread use of biofuels, which are an alternative to conventional, petroleum-based fuels in mobile and stationary applications. The conversion of vegetable oils via catalytic hydrotreating to hydrotreated vegetable oil (HVO) is one of the most promising alternatives to produce high-quality biofuels. In this work, the composition and properties of rapeseed oil hydrotreating products gained over sulfided CoMo/γ-Al2O3 and NiMo/γ-Al2O3 catalysts were studied. The experiments were carried out in a laboratory trickle bed reactor in a temperature range of 320−380 °C and pressures of 4 and 8 MPa. The mixture of a rapeseed oil and isooctane was hydrotreated to simulate the coprocessing of rapeseed oil and petroleum fractions. Small amounts of aromatic hydrocarbons and, at higher reaction temperatures, considerably high contents of cycloalkanes and isoalkanes were found in the obtained liquid products. These were specifically alkylated cyclopentanes, cyclohexanes, decalines, benzenes, indanes, tetralines, and naphthalenes. The content of isoalkanes and aromatics in the liquid hydrotreating products gained over both catalysts increased with an increasing reaction temperature. A higher total amount of aromatics was found in the products of the NiMo catalyst because of its higher dehydrogenation activity compared with the CoMo catalyst. The liquid products with a high content of n-alkanes had a very high cetane index and cold filter plugging point, which decreased with an increasing reaction temperature due to the increasing content of isoalkanes and aromatics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/LO1613" target="_blank" >LO1613: Výzkum nových materiálů pro chemický průmysl</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Energy &amp; Fuels

ISSN

0887-0624

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

"9609–9619"

Kód UT WoS článku

000563095800043

EID výsledku v databázi Scopus

2-s2.0-85091828752