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On the dynamics and reversibility of the deactivation of a Rh/CeO2-ZrO2 catalyst in raw bio-oil steam reforming
(Elsevier, 2019-01-28)
The deactivation mechanism of a commercial Rh/CeO2-ZrO2 catalyst in raw bio-oil steam reforming has been studied by relating the evolution with time on stream of the bio-oil conversion and products yields and the physicochemical ...
Optimum Operating Conditions in Ethanol Steam Reforming over a Ni/La2O3-αAl2O3 catalyst in a Fluidized Bed Reactor
(Elsevier, 2018-01-01)
This manuscript analyzes the steam reforming of ethanol (SRE) over a Ni/La2O3-Al2O3 catalyst in a fluidized bed reactor under a wide range of operating conditions (500-650 ºC, space time up to 0.35 gcatalysth/gEtOH, and ...
Towards waste refinery: Co-feeding HDPE pyrolysis waxes with VGO into the catalytic cracking unit
(Elsevier Ltd., 2020-01-28)
The co-feeding of high-density polyethylene pyrolysis waxes (HDPE waxes) with vacuum gasoil (VGO) on the catalytic cracking has been investigated. Runs have been conducted by feeding a blend of HDPE waxes/VGO (1/4 in mass) ...
Origin and nature of coke in ethanol steam reforming and its role in deactivation of Ni/La2O3-αAl2O3 catalyst
(ACS, 2019-07-22)
Deactivation of Ni/La2O3-αAl2O3 catalyst in the ethanol steam reforming (ESR) was studied in order to establish the optimal conditions for maximizing H2 production and achieving a steady behaviour. The ESR reactions were ...
Upgrading of heavy coker naphtha by means of catalytic cracking in refinery FCC unit
(Elsevier B.V., 2020-08)
The upgrading of heavy coker naphtha under conditions of the industrial fluid catalytic cracking (FCC) unit has been investigated, with the aim of obtaining light olefins and a gasoline fraction suitable to be used in the ...
Operating conditions for attenuating Ni/La2O3-αAl2O3 catalyst deactivation in the steam reforming of bio-oil aqueous fraction
(Elsevier, 2013-07-16)
A study was carried out on the effect of temperature (in the 500–800 °C range) and space–time (between 0.10 and 0.45 gcatalyst h(gbio-oil)− 1) on Ni/La2O3–αAl2O3 catalyst deactivation by coke deposition in the steam reforming ...
Model validation of a packed bed LTA membrane reactor for the direct synthesis of DME from CO/CO2
(2020-10-16)
A model for simulating the direct synthesis of dimethyl ether (DME) in a packed bed membrane reactor (PBMR) has been validated, using a LTA zeolite hydrophilic membrane in a lab-scale reaction equipment. In the model, ...
Strategies for the intensification of CO2 valorization in the one-step dimethyl ether synthesis process
(ACS, 2019-12-16)
The intensification of CO2 valorization has been theoretically studied in the direct synthesis of dimethyl ether (DME) carried out in a packed-bed reactor by means of two strategies pursuing the attenuation of the thermodynamic ...
Steam reforming of the bio-oil aqueous fraction in a fluidized bed reactor with in situ CO2 capture
(ACS, 2013-11-11)
The effect of CO2 capture in the hydrogen production by steam reforming of the bio-oil aqueous fraction was studied. The reforming and cracking activity of the adsorbent (dolomite) and relationship between these reactions ...
Stability of CuZnOAl2O3/HZSM-5 and CuFe2O4/HZSM-5 catalysts in dimethyl ether steam reforming operating in reaction-regeneration cycles
(Elsevier, 2014-05-21)
The study focuses on the regenerability of bifunctional catalysts prepared with different metallic functions (CuZnOAl2O3 and CuFe2O4 spinel) and HZSM-5 zeolite (SiO2/Al2O3 = 30) as the acid function. These catalysts have ...