Stabilization of fast pyrolysis liquids from biomass by catalytic hydrotreatment using Raney nickel “type” catalysts

Wang Yin, Hanwen Gu, Monique Bernardes Figueiredo, Shuqian Xia, Robertus Hendrikus Venderbosch, Hero Jan Heeres*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

15 Citaten (Scopus)
78 Downloads (Pure)

Samenvatting

The catalytic hydrotreatment of fast pyrolysis liquids (PL) from lignocellulosic biomass is a promising technology to improve the properties of PL. Mild hydrotreatment (< 250 °C) using a suitable catalyst allows the production of stabilized oils that have for instance potential for co-processing in existing oil refinery units. Here, we report a catalyst screening study to stabilize PL by a mild hydrotreatment using five Raney nickel “type” catalysts (Ra-Ni), more specifically a benchmark Ra-Ni, two types of Fe/Cr promoted, and two Mo-promoted ones. Experiments were performed at relatively mild hydrotreatment conditions (200 °C, initial 140 bar H2 pressure, 4 h) in a batch autoclave. Among all the Ra-Ni catalysts, the Mo promoted (A-7063) showed the highest hydro-(deoxy)genation activity, a lower extent of repolymerization (GPC), and lower charring tendency of the product oil (TGA) compared to the promoter-free and Fe/Cr promoted Ra-Ni catalysts. Analyses of the product oils showed that the oils contain a significant amount of phenolics (7.4–15.4 wt% on oil, GC x GC-FID). These findings indicate that commercially available Raney nickel “type” catalysts, and particularly the Mo promoted ones, are attractive to be used for the mild hydrotreatment of pyrolysis liquids.
Originele taal-2English
Artikelnummer106846
TijdschriftFuel processing technology
Volume219
Vroegere onlinedatum7-mei-2021
DOI's
StatusPublished - aug.-2021

Vingerafdruk

Duik in de onderzoeksthema's van 'Stabilization of fast pyrolysis liquids from biomass by catalytic hydrotreatment using Raney nickel “type” catalysts'. Samen vormen ze een unieke vingerafdruk.

Citeer dit