Bifunctional Adsorbent-Catalytic Nanoparticles for the Refining of Renewable Feedstocks

TitleBifunctional Adsorbent-Catalytic Nanoparticles for the Refining of Renewable Feedstocks
Publication TypeJournal Article
Year of Publication2013
AuthorsKandel K, Frederickson C, Smith EA, Lee YJ, Slowing II
Journal TitleACS Catalysis
Volume3
Pages2750-2758
Date Published12
Type of ArticleArticle
ISBN Number2155-5435
Accession NumberWOS:000328231400012
Keywordsbiodiesel, biofuel, biorenewable feedstock, CONVERSION, deoxygenation, diesel, free fatty-acids, heavy-metal ions, hydrotreatment, mesoporous silica, mesoporous silica nanoparticles, microalgae, nannochloropsis-oculata, stearic-acid, waste oils
Abstract

A hybrid adsorbent-catalytic nanostructured material consisting of aminopropyl groups and nickel nanoparticles immobilized in mesoporous silica nanoparticles (AP-Ni-MSN) was employed to selectively capture free fatty acids (FFAs) and convert them into saturated hydrocarbons. The working principle of these sorbent-catalytic particles was initially tested in the hydrogenation of oleic acid. Besides providing selectivity for the capture of FFAs, the adsorbent groups also affected the selectivity of the hydrogenation reaction, shifting the chemistry from hydrocracking-based (Ni) to hydrotreating-based and improving the carbon economy of the process. This approach was ultimately evaluated by the selective sequestration of FFAs from crude microalgal oil and their subsequent conversion into liquid hydrocarbons, demonstrating the suitability of this design for the refinery of renewable feedstocks.

URL<Go to ISI>://WOS:000328231400012
DOI10.1021/cs4008039