MFI zeolite coating with intrazeolitic aluminum (acidic) gradient supported on SiC foams to improve the methanol-to-propylene (MTP) reaction

10.1016/j.apcata.2018.04.006

2018-04-09

To hinder the deactivation and improve the propylene selectivity in the methanol-to-propylene (MTP) reaction, MFI coating with the intrazeolitic aluminum (acidic) gradient supported on SiC foam support (G-MFI/SiC foam) was proposed. The solid polycrystalline ...

Construction of Novel Cu/ZnO-Al2O3 Composites for Furfural Hydrogenation: The Role of Al components

10.1016/j.apcata.2018.04.005

2018-04-07

Novel Cu/ZnO-Al2O3 composites had been constructed and applied in furfural hydrogenation to produce furfuryl alcohol in a fixed-bed reactor. As the result, conversion of FFA over Cu/ZnO catalyst (within 16–24 h TOS) could be improved from 84.9% to 98.0% at 12...

Liquid Phase Hydrodeoxygenation of Anisole, 4-Ethylphenol and Benzofuran Using Ni, Ru and Pd Supported on USY Zeolite

10.1016/j.apcata.2018.04.004

2018-04-06

The objective of this work is to understand the role of metals on the hydrodeoxygenation (HDO) reaction pathways of three bio-oil model compounds. Ni, Ru and Pd were impregnated on USY zeolite, and the catalysts were characterized to determine metal reduction...

Photocatalytic and Photochemical Processes on the Surface of Uranyl-modified Oxides: An in Situ XPS Study

10.1016/j.apcata.2018.03.015

2018-03-29

The development of photocatalysts active under visible light attracts great attention due to the prospect for the utilization of solar radiation. The modification of porous supports with uranyl ions results in the ability for oxidation of organic compounds un...

Impact of the presence of Mo carbide species prepared ex situ in Mo/HZSM-5 on the catalytic properties in methane aromatization

10.1016/j.apcata.2018.03.023

2018-03-29

The catalytic activity of HZSM-5 supported Mo-oxide (MoOx) and Mo-carbide (MoCy) for methane aromatization was studied using a packed-bed microreactor. MoOx/HZSM-5 catalysts with 3, 6, 10, and 12 wt.% Mo loading were prepared by incipient wetness impregnation...

Dehydration of D-xylose into furfural over bimetallic salts of heteropolyacid in DMSO/H2O mixture

10.1016/j.apcata.2018.03.027

2018-03-27

Dehydration of D-xylose to yield furfural was carried out using bimetallic salts of a heteropolyacid as the catalyst at 160 – 220 °C in the DMSO/H2O mixtures. The effect of Sn/Cs molar ratio of the bimetallic salts of 12-tungstophosphoric acid (PW) obtained b...

High Performance Ni-Fe-Mg Catalyst for Tar Removal in Producer Gas

10.1016/j.apcata.2018.03.026

2018-03-27

A Ni-Fe-Mg material, supported on a ceramic substrate, suitable for application in a gasifier or reforming reactor was evaluated as a catalyst for tar decomposition via steam reforming. Experiments were conducted in a laboratory-scale fixed-bed reactor using ...

Hydrotreating of guaiacol: A comparative study of Red Mud-supported nickel and commercial Ni/SiO2-Al2O3 catalysts

10.1016/j.apcata.2018.03.016

2018-03-27

Upgrading of bio-oil through catalytic hydrotreating was investigated with guaiacol as a model compound. A nickel supported on red mud (Ni/RM) hydrotreating catalyst was developed and compared to the standard Ni/SiO2-Al2O3 catalysts under similar experimental...

Hydrodeoxygenation of triglycerides over reduced mesostructured Ni/γ-alumina catalysts prepared via one-pot sol-gel route for green diesel production

10.1016/j.apcata.2018.03.030

2018-03-27

Environmentally friendly non-sulfided mesostructured Ni/γ-alumina catalysts were synthesized and developed to produce green diesel from canola oil. The catalysts were prepared either by a one-pot sol-gel (SG) via evaporation-induced self-assembly (EISA) or by...

Enhancement of the NH3-SCR catalytic activity of MnTiOx catalyst by the introduction of Sb

10.1016/j.apcata.2018.03.028

2018-03-27

Sb was used as the additive to enhance the NH3-SCR performance of MnTiOx catalyst. Experimental results revealed that MnSbTiOx-0.2 demonstrated outstanding NH3-SCR activity in a wide temperature window (100-400 ℃) and high resistance to SO2. Characterization ...