Carbon dioxide and/or dry methane reforming serves as an effective pathway to mitigate these greenhouse gases. This work evaluates different oxide supports including alumina, Y-zeolite and H-ZSM-5 zeolite for the catalysis of with Nickel (Ni). The composite catalysts were prepared by impregnating Ni (5%) followed calcination. supported exhibited more reducibility basicity compared alumina catal...

Abstract In this study, two-step pyrolysis of biomass-rich municipal solid waste was studied on nickel supported ZSM-5 catalyst. the first stage reactor, constant temperature ( T = 550 °C) applied, and in second stage, reactions took place at 500, 700 850 °C. Effects operating parameters (temperature 700, °C, steam rate 1, 5 g/h) catalyst load (0.5, 1.0, 2.0) were yields compositions, particula...

This study investigates the effect of chemically doped Co and Ni metals on ZSM-5 catalyst with respect to catalysts’ characteristics performance for palm oil cracking. Some characterization methods have been conducted identify physicochemical properties synthesized catalysts, including X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), N2-physisorption, NH3- CO2-probed Temperature Pro...

The promotion of Ag–ZSM-5 by cerium for the selective catalytic reduction (SCR) of NO with methane in the presence of an excess of oxygen was studied in this work. Ce–Ag–ZSM-5 catalyzes the CH4-SCR of NOx over the temperature range of 450–600◦C. Rate measurements of NO reduction to N2 under SCR conditions and of the competing CH4 oxidation by O2 (CH4 combustion) show that incorporation of a sma...

The catalytic co-conversion of glycerol and oleic acid (45/55 wt%) to bio-based aromatics (benzene, toluene, xylenes, bio-BTX) over a technical H-ZSM-5/Al2O3 catalyst in fixed-bed reactor was investigated with special attention deactivation phenomena. spent catalysts after time on stream (TOS) 12 h were regenerated by an ex-situ oxidative treatment remove coke reused for another run. In total, ...

The selective oxidation of methane to methanol is a key challenge in catalysis. Iron and copper modified ZSM-5 catalysts are shown to be effective for this reaction using H2O2 as the oxidant under continuous flow operation. Co-impregnation of ZSM-5 with Fe and Cu by chemical vapour impregnation yielded catalysts that showed high selectivity to methanol (> 92% selectivity, 0.5 % conversion), as ...

Non-oxidative dehydroaromatization of methane (MDA) is a promising catalytic process for direct valorization of natural gas to liquid hydrocarbons. The application of this reaction in practical technology is hindered by a lack of understanding about the mechanism and nature of the active sites in benchmark zeolite-based Mo/ZSM-5 catalysts, which precludes the solution of problems such as rapid ...

Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude oil fractions. The spatial distribution and acidity of zeolite aggregates embedded within the 50-150 μm-sized FCC spheres heavily influence their catalytic performance. Single-molecule fluorescence-based imaging methods, namely nanometer accuracy by stochastic chemical reactions...

Catalytic upgrading of fast pyrolysis bio-oil from two different types lignocellulosic biomass was conducted using an H-ZSM-5 catalyst at temperatures. A fixed-bed reactor has been used to perform in situ catalytic experiments temperatures 673, 773, and 873 K, where the (H-ZSM-5) mixed with wood chips or lignin, processes have performed simultaneously. The fractionation method employed determin...

Abstract This study investigates the production of diesel fuels by integrated Fischer–Tropsch synthesis over a bifunctional cobalt catalyst consisting component (Co–Al 2 O 3 /SiO ) and zeolite-containing (ZSM-5). The catalytic properties were tested in continuous-flow reactor with stationary bed at 240–250°C, MPa, gas WHSV 1000 h –1 . effects SiO /Al ratio HZSM-5 zeolite on performance, deactiv...