Search
Now showing items 1-10 of 11
Capability of the Direct Dimethyl Ether Synthesis Process for tCapability of the Direct Dimethyl Ether Synthesis Process for the Conversion of Carbon Dioxide
(MDPI, 2018-05)
The direct synthesis of dimethyl ether (DME) is an ideal process to achieve the environmental objective of CO2 conversion together with the economic objective of DME production. The effect of the reaction conditions ...
Oxidative Steam Reforming of Raw Bio-Oil over Supported and Bulk Ni Catalysts for Hydrogen Production
(MDPI, 2018-08)
Several Ni catalysts of supported (on La2O3-alpha Al2O3, CeO2, and CeO2-ZrO2) or bulk types (Ni-La perovskites and NiAl2O4 spinel) have been tested in the oxidative steam reforming (OSR) of raw bio-oil, and special attention ...
Coking and sintering progress of a Ni supported catalyst in the steam reforming of biomass pyrolysis volatiles
(Elsevier, 2018-10)
The valorization of biomass (pine wood) for hydrogen production has been studied in a
two-step process, comprising pyrolysis and subsequent steam reforming of the volatiles
produced in the first step. This work focuses ...
Regeneration of NiAl2O4 spinel type catalysts used in the reforming of raw bio-oil
(Elsevier, 2018-12-01)
The regenerability of Ni catalysts in reforming reactions is a key factor for process viability. Accordingly, this study addresses the regeneration of two spinel NiAl2O4 type catalysts by reaction-regeneration cycles in ...
Regenerability of a Ni catalyst in the in-line catalytic steam reforming of biomass pyrolysis volatiles
(Elsevier, 2018-12)
A study has been carried out of the regenerability of a commercial Ni catalyst used in the steam reforming of volatiles from biomass pyrolysis, determining the evolution of the reaction indices in successive reaction-regeneration ...
Kinetic modeling of the direct synthesis of dimethyl ether over a CuO-ZnO-MnO/SAPO-18 catalyst and assessment of the CO2 conversion
(Elsevier, 2018-12-01)
A kinetic model has been established for the direct synthesis of dimethyl ether (DME) from syngas and CO2 feeds. The kinetic parameters have been determined fitting the experimental results obtained using a CuO-ZnO-MnO/SAPO-18 ...
Energetic viability of a polyolefin pyrolysis plant
(American Chemical Society, 2018-03)
The energetic viability of a polyolefin pyrolysis unit that could be installed in a refinery plant was examined. Thermal pyrolysis at 500 and 700 degrees C, and the catalytic cracking by means of HZSM-5 and HY catalysts ...
Influence of the support on Ni catalysts performance in the in-line steam reforming of biomass fast pyrolysis derived volatiles
(Elsevier, 2018-02-06)
The influence the support has on the performance of Ni catalysts used in the reforming of biomass fast pyrolysis volatiles has been assessed. Accordingly, five catalysts have been prepared by wet impregnation method, namely ...
Insight into the deactivation and regeneration of HZSM-5 zeolite catalysts in the conversion of dimethyl ether to olefins
(ACS, 2018-09-19)
The impact of different process variables affecting the coking and rejuvenation of HZSM-5 zeolite catalyst has been studied during the conversion of dimethyl ether (DME) to olefins in a fixed bed reactor. Those variables ...
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 ...