A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sustainable conversion of biodiesel-waste glycerol to acrolein over Pd-modified mesoporous catalysts
The sustainable biodiesel industry relies on converting biorefinery by-product glycerol into valuable chemicals. A wet-impregnated Pd/SBA-15 catalyst for the selective dehydration of glycerol to acrolein is presented in this study. Various analytical techniques were used to confirm the catalysts' physicochemical characteristics, including X-ray diffraction, pulse CO chemisorption, BET surface area, TEM, and H2-TPR. The results demonstrate that Pd nanoparticles were incorporated into SBA-15 in a homogeneous dispersion. Due to its high surface area and sufficient Bronsted acidic sites, the Pd/SBA-15 catalyst can enhance selectivity for acrolein and reduce poisoning susceptibility. A fixed-bed reactor operating in the vapour phase was used to verify the efficiency of the prepared acid catalysts for selectively converting glycerol to acrolein. It was discovered that 2 wt% Pd nanoparticles supported on the SBA-15 catalyst exhibit 89.6% glycerol conversion and 64.2% acrolein selectivity at 320 °C. It was found that the acidic sites (Lewis & Brønsted), homogenous Pd nanoparticle dispersion, and the support (i.e., SBA-15) conferred its superior catalytic activity. Various reaction parameters, including temperature, TOF, Pd loadings, and weight hour space velocity, also affect catalytic activity.
Sustainable conversion of biodiesel-waste glycerol to acrolein over Pd-modified mesoporous catalysts
The sustainable biodiesel industry relies on converting biorefinery by-product glycerol into valuable chemicals. A wet-impregnated Pd/SBA-15 catalyst for the selective dehydration of glycerol to acrolein is presented in this study. Various analytical techniques were used to confirm the catalysts' physicochemical characteristics, including X-ray diffraction, pulse CO chemisorption, BET surface area, TEM, and H2-TPR. The results demonstrate that Pd nanoparticles were incorporated into SBA-15 in a homogeneous dispersion. Due to its high surface area and sufficient Bronsted acidic sites, the Pd/SBA-15 catalyst can enhance selectivity for acrolein and reduce poisoning susceptibility. A fixed-bed reactor operating in the vapour phase was used to verify the efficiency of the prepared acid catalysts for selectively converting glycerol to acrolein. It was discovered that 2 wt% Pd nanoparticles supported on the SBA-15 catalyst exhibit 89.6% glycerol conversion and 64.2% acrolein selectivity at 320 °C. It was found that the acidic sites (Lewis & Brønsted), homogenous Pd nanoparticle dispersion, and the support (i.e., SBA-15) conferred its superior catalytic activity. Various reaction parameters, including temperature, TOF, Pd loadings, and weight hour space velocity, also affect catalytic activity.
Sustainable conversion of biodiesel-waste glycerol to acrolein over Pd-modified mesoporous catalysts
Ramyakrishna Pothu (author) / Naresh Mameda (author) / Rajender Boddula (author) / Harisekhar Mitta (author) / Vijayanand Perugopu (author) / Noora Al-Qahtani (author)
2023
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Dehydration of Glycerol to Acrolein over Sulfated Iron Oxide Catalysts
| Springer Verlag | 2019
Vapour phase dehydration of glycerol to acrolein over tungstated zirconia catalysts
| British Library Online Contents | 2014
Catalytic dehydration of glycerol to acrolein over sulfuric acid-activated montmorillonite catalysts
| Online Contents | 2013
Solid acid catalysts for dehydration of glycerol to acrolein in gas phase
| British Library Online Contents | 2011