Compared with the rapid deactivation of Pd/AC catalyst, an eco-friendly Pd-[DBU][Cl]/AC ([DBU][Cl], 1,8-diazabicyclo[5.4.0]undec-7-ene hydrochloride) catalyst enhanced stability was synthesized and applied in hydrochlorination acetylene. The Pd-20[DBU][Cl]/AC exhibits 96.7% acetylene conversion 98.9% selectivity vinyl chloride within 24 h evaluation under conditions T = 180 °C, GHSV(C2H2) 360 h...

Research is being actively conducted to improve the carbon deposition and sintering resistance of Ni-based catalysts. Among them, Al2O3-supported Ni catalyst has been broadly studied for dry reforming reaction due its high CH4 activity at beginning reaction. However, there a problem deactivation Ni/Al2O3 Ni, which catalytically active material. Supplementing MgO in can result an improved MgAl2O...

This review considers problems related to design of efficient structured catalysts for natural gas and biofuels transformation into syngas. Their active components are comprised fluorite, perovskite spinel oxides or their nanocomposites (both bulk supported on high surface area Mg-doped alumina MgAl2O4) promoted by platinum group metals, nickel alloys. A complex modern structural, spectroscopic...

Ni-based catalysts are prone to agglomeration and carbon deposition at high temperatures. Therefore, the development of with activities low temperatures is a very urgent challenging research topic. Herein, nanocatalysts containing Co promoter mosaic structure were prepared by reduction NiCoAl-LDHs, used for CO2 methanation. When reaction temperature 250 °C (0.1 MPa, GHSV = 30,000 mL·g−1·h−1), c...

The highly selective production of light olefins from CO2 was demonstrated for the first time with a laboratory-scale process comprising consecutive reverse water gas shift (RWGS) and Fischer–Tropsch (FT) reactors. RWGS reaction, catalyzed by rhodium washcoated catalyst at 850 °C yielded good quality syngas conversion values close to thermodynamic equilibrium without experiencing deactivation c...

The viability of catalyzed CO2 conversion routes strongly depends on improving the catalytic performance and understanding process. Herein, we investigate effect Ca loading PdZn/CeO2 catalysts prepared using sol–gel chelatization method for hydrogenation to methanol. A remarkable improvement in catalyst was revealed with optimum amount (0.5 wt%) synergetic cooperation PdZn alloy (main active ph...

A series of x(Co, Mn)/TiO2 catalysts (x=2–12wt.%) containing 25%Co and 75%Mn were prepared by the co-impregnation method. All prepared catalysts have been tested in Fischer-Tropsch synthesis for production of C2-C4 olefins. It was found that the catalyst containing 8wt.%(Co,Mn)/TiO2 is an optimal catalyst for production of C...

Developing low-temperature nickel-based catalysts with good resistance to coking and sintering for dry reforming of methane (DRM) is great significance. In this work, Ni (5 wt%) CeO2 were supported on SBA-15 porous material by glycine-assisted impregnation method obtain Ni-CeO2/SBA-15-G catalyst. XRD TEM results showed that the addition glycine can effectively promote dispersion NiO in pores SB...

Zirconia (ZrO2) nanoparticles co-doped with Cu and Pt were applied as catalysts for carbon monoxide (CO) oxidation. These materials were prepared through solution combustion in order to obtain highly active and stable catalytic nanomaterials. This method allows Pt2+ and Cu2+ ions to dissolve into the ZrO2 lattice and thus creates oxygen vacancies due to lattice distortion and charge imbalance. ...

Aromatics and cyclic-hydrocarbons are the significant components of jet fuel with high energy-density. However, conventional technologies for bio-fuel production cannot produce these products without further aromatization and isomerization. In this work, renewable liquid fuel with high content of aromatics and cyclic-hydrocarbons was obtained through aqueous catalytic conversion of biomass sorb...