Effect of temperature on the hydrotreatment of sewage sludge-derived pyrolysis oil and behavior of Ni-based catalyst

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43920341" target="_blank" >RIV/60461373:22320/20:43920341 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22350/20:43920341

Result on the web

<a href="https://doi.org/10.3390/catal10111273" target="_blank" >https://doi.org/10.3390/catal10111273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/catal10111273" target="_blank" >10.3390/catal10111273</a>

Result language

angličtina

Original language name

Effect of temperature on the hydrotreatment of sewage sludge-derived pyrolysis oil and behavior of Ni-based catalyst

Original language description

The high-energy potential of wastewater sewage sludge (SS) produced in large amounts around the world makes it an attractive feedstock for fuels and energy sectors. Thermochemical valorization relying on pyrolysis of SS followed by hydrotreatment of pyrolysis oil (Py-SS) might even allow the integration of SS into existing oil refineries. In the present study, catalytic hydrotreatment of Py-SS was performed over a NiCuMo-P-SiO2 catalyst in a batch reactor at temperatures in the range of 200–390◦C. Due to sulfur presence in the feed, the increasing reaction temperature induced in situ transformation of metallic Ni into Ni3S2 in the catalyst. In contrast, the Ni3P active phase possessed remarkable stability even at the harshest reaction conditions. The oxygen content in the reaction products was decreased by 59%, while up to 52% of N and 89% of S were removed at 390◦C. The content of free fatty acids was greatly reduced by their conversion to n-alkanes, while the larger amount of volatile aromatics was generated from high molecular mass compounds. The quality of oil-derived products greatly changed at elevated temperatures, providing strong evidence of effective upgrading via decarboxy(ny)lation, hydrogenation, and hydrocracking transformations. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

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

<a href="/en/project/GC20-28086J" target="_blank" >GC20-28086J: Simultaneous deoxygenation of acids and phenols in pyrolyzed wastewater sludges</a><br>

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

Catalysts

ISSN

2073-4344

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

27

Pages from-to

1-27

UT code for WoS article

000593532500001

EID of the result in the Scopus database

2-s2.0-85095730954