We introduce a new method for performing and miniaturizing many types of heterogeneous catalysis involving nanoparticles. The method makes use of the plasmon resonance present in nanoscale metal catalysts to provide the necessary heat of reaction when illuminated with a low-power laser. We demonstrate our approach by reforming a flowing, liquid mixture of ethanol and water over gold nanoparticl...

In this paper, we address the conceptual design of the bioethanol process from switchgrass via gasification. A superstructure is postulated for optimizing energy use that embeds direct or indirect gasification, followed by steam reforming or partial oxidation. Next, the gas composition is adjusted with membrane-PSA or water gas shift. Membrane separation, absorption with ethanol-amines and PSA ...

Two fluidized bed membrane reactor concepts for hydrogen production via autothermal reforming of methane with integrated CO2 capture are proposed. Ultrapure hydrogen is obtained via hydrogen perm-selective Pd-based membranes, while the required reaction energy is supplied by oxidizing part of the CH4 in situ in the methane combustion configuration or by combusting part of the permeated H2 in th...

In this study, we examined a scale-up to production of nickel perovskite catalyst, used in the conversion of natural gas to synthesis gas, using the sol-gel method in the laboratory and a bench-scale reactor. The required volume of solvent and catalyst activity in the methane-reforming reaction was determined from the optimum catalyst production conditions at the laboratory scale. This informat...

The formation of syngas (H2 and CO) from methane in a rhodium coated monolith is studied as an example for the simulation of reactive ow in a partial oxidation reactor. A tube wall catalytic reactor, which serves as a model for a single pore of the monolithic catalyst, is simulated. The simulation is carried out using a two-dimensional ow eld description coupled with detailed reaction mechanism...

Steam reforming is a promising route to convert natural gas into syngas - mixture of H2 and CO, used as feed stock e.g. for ammonia, methanol Fischer-Tropsch synthesis processes. For the industrial application steam reforming, detailed understanding process prerequisite. Models that capture homogeneous heterogeneous reaction kinetics comprehensive transport processes well their interaction have...

pyrolysis of low density polyethylene (ldpe) by equilibrium fluid catalytic cracking (fcc) was studied in a stirred reactor under different process parameters. in this work, the effect of process parameters such as degradation temperature (420-510°c), catalyst/polymer ratio (0-60%), carrier gas type (h2, n2, ethylene, propylene, ar and he), residence time and agitator speed (0-300 rpm) on the c...

Bioethanol and hydrogen as a new source of energy are being strongly considered by industries and scientific community for causing less pollution and being cheaper when compared with fossil fuels. In this context, a new kind of engine, called fuel cells, that uses electrochemistry, thermodynamics and transport phenomena (fluid mechanics, heat transfer and mass transfer) concepts to convert hydr...

The application of copper-based catalysts in the production pure hydrogen steam reforming ethanol was performed. tricomponent Cu/Zr with about 4 mass% addition nickel, cobalt, or cerium have been prepared our laboratory. properties obtained were compared bimetallic catalyst and tested according to same procedure. Catalytic tests carried out continuous flow fixed–bed reactor wide temperature ran...

Abstract. Dry reforming of methane (DRM) is a trendy topic investigation as means reducing global warming. However, the adoption DRM for commercial purpose still question due to deactivation and sintering catalysts. The performance 5Ni/KCC-1 catalyst by using ultrasonic-assisted impregnation method was examined in this study. micro-emulsion were used prepare KCC-1 support respectively. characte...