Hydrotreating atmospheric gasoil and co-processing with rapeseed oil using supported Ni-Mo and Co-Mo carbide catalysts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F20%3AN0000029" target="_blank" >RIV/62243136:_____/20:N0000029 - isvavai.cz</a>

Result on the web

<a href="https://authors.elsevier.com/a/1aa6m3iH4BkVY" target="_blank" >https://authors.elsevier.com/a/1aa6m3iH4BkVY</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2020.117363" target="_blank" >10.1016/j.fuel.2020.117363</a>

Result language

angličtina

Original language name

Hydrotreating atmospheric gasoil and co-processing with rapeseed oil using supported Ni-Mo and Co-Mo carbide catalysts

Original language description

Sulfur-free Mo carbide catalysts supported on Al2O3 and TiO2 have shown good activity during the co-processing of middle distillates with vegetable oils in prior studies. However, their hydrotreating activity is low compared with that of conventional hydrotreating catalysts. To increase the hydrotreating effectiveness, promoter metals, such as Ni or Co, can be added. This paper describes an extensive study on the use of four sulfur-free Ni-Mo and Co-Mo carbide catalysts (supported on Al2O3 and TiO2) for the hydrotreatment of atmospheric gasoil (AGO) and co-processing with rapeseed oil (RSO). The tests were conducted in a fixed bed reactor unit at 330–350 °C, 5.5 MPa, a weigh hourly space velocity (WHSV) = 1–2 h?1, and AGO/RSO of 100/0, 95/5, 90/10, and 75/25 wt.%. Analogous to conventional hydrotreatment catalysts, adding the promotor metals significantly increased the product quality and the hydrodesulfurisation and hydrodenitrogenation efficiencies at higher temperatures or at lower WHSVs. In the case of RSO co-processing, all the tested catalysts promoted the hydrodeoxygenation pathway instead of (hydro)decarboxylation/decarbonylation with an insignificant decrease in the hydrodesulfurization efficiency at lower AGO/RSO ratios. Therefore, our results suggest that promoting Mo carbide catalysts with Ni or Co significantly improves their catalytic properties, making them more competitive with conventional hydrotreating catalysts.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20400 - Chemical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

FUEL

ISSN

0016-2361

e-ISSN

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Volume of the periodical

268

Issue of the periodical within the volume

117363

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

1-12

UT code for WoS article

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EID of the result in the Scopus database

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