the oxidative coupling of methane (ocm) performance over na-w-mn/sio2 at elevated pressures has been simulated by adaptive neuro fuzzy inference system (anfis) using reaction data gathered in an isothermal fixed bed microreactor. in the designed neuro fuzzy models, three important parameters such as methane to oxygen ratio, gas hourly space velocity (ghsv), and reaction temperature were conside...

Fischer–Tropsch process (F-T) is an efficient technology to synthesize liquid transportation fuel as well as other valuable chemicals. This process is associated with hydrogenation of carbon monoxide gas in presence of transition metal catalyst to valuable liquid transportation fuels and chemicals. F-T reaction is essentially a catalytic process, and most widely used catalysts are either iron o...

The objective of this project was to develop hot gas clean up capabilities for the HNEI gasifier test facility to support hydrogen from biomass research. The product gas stream at the outlet of the hot gas filter was characterized for concentrations of permanent gas species (CO, CO2, H2, CH4, N2) and contaminants including tar (principally benzene, naphthalene, and toluene) and sulfur (H2S, COS...

This work tested two V2O5-WO3/TiO2 catalysts with different vanadium precursors for selective catalytic reduction (SCR) of flue gas NO using NH3 at 150–450 ̋C. While catalyst A was prepared using ammonium metavanadate (NH4VO3) through incipient impregnation, catalyst B was made according to the solvothermal method using vanadyl acetylacetonate (VO(acac)2) as the vanadium precursor. The catalyti...

The ethanol dispersion method was employed to synthesize a series of MnOx/SAPO-34 catalysts using SAPO-34 with the hierarchical pore structure as zeolite carrier, which were prepared by facile acid treatment citric acid. Physicochemical properties characterized XRD, XPS, BET, TEM, NH3-TPD, SEM, FT-IR, Py-IR, H2-TRP and TG/DTG. NH3-SCR performances evaluated at low temperatures. Results show tha...

The performance of the single-step and sequential-steps catalytic CO2-hydrogenation to DiMethyl Ether (DME) was systematically analyzed. CuO–ZnO model-catalysts for methanol were synthesized via different methods namely co-precipitation, sequential precipitation precipitation-impregnation precursors. Moreover, co-precipitation co-impregnation applied establish bifunctional structures composed o...

The performance of olivine, dolomite and γ-alumina primary catalysts was evaluated in the continuous tar elimination process which toluene selected as biomass gasification model compound. Iron incorporated into these order to improve their catalytic activity. All experiments were performed a flow fluidized bed micro-reactor, with steam/toluene ratio 4 space velocity (GHSV) 820 h−1, corresponds ...

Catalytic methane decomposition is believed to be an economic and environmental friendly route for the production of COx free hydrogen high quality carbon nanotubes. However, development active stable catalysts remains a significantly challenging research topic. This study focuses on highly silica-supported Fe-based thermal into A series Fe/SiO2 with varying Fe loading in range between 25 wt% 1...

Silicoaluminophosphate (SAPO-34) molecular sieve doped with transition metals, Mn and Ni, with different molar ratios (Mn/Ni=0.33, 3) were investigated for their activity, selectivity and lifetime in biomethanol to olefins reaction. MnNiAPSO-34 nanostructured catalyst was synthesized by hydrothermal method and addition of metals was carried out by isomorphous substitution into the crystalline f...