steam reforming is one of the most important processes for producing hydrogen from hydrocarbon fuels such as lpg and has attracted much attention due to its high efficiency and economy. in this study, the lpg steam reforming reaction was investigated on nickel catalysts supported on four various zeolites (h-y, na-y, hzsm5 and ferrierite). the catalytic tests were performed in a tubular fixed be...

background diatomite coated by nanoparticles of copper and zinc mixed oxides were used to investigate catalytic oxidation of carbon monoxide. objectives aim of this paper was to investigatediatomite performance as a supporting host to confine the cuo and zno nanoparticles and its catalytic activity for carbon monoxide oxidation. materials and methods the prepared catalysts were characterized by...

This work investigates the non-catalyzed supercritical methanol (SCM) process for continuous biodiesel production. The lab-scale setup was designed and used production in temperature range of 520–650 K 83–380 bar with an oil-to-methanol molar ratio ranging from 1:5 to 1:45. experiments were performed coiled plug flow tubular reactor. volumetric rate methanol/oil ranged 0.1–10 mL/min. examines a...

The results of complex investigations of the crystalline structure, composition and specific magnetization of the multi-wall carbon nanotubes (CNTs) filled by magnetic nanocomposite are performed. CNT arrays have been synthesized by the high temperature pyrolysis of fluid hydrocarbon p-xylole [ 8 10] in the presence of volatile catalyst ferrocene [Fe(C5H5)2] at the walls of tubular-type quartz ...

An economical analysis of the LPCVD hot wall tubular reactor functioning is presented including equipment amortization, clean room location, supplies, maintenance, labor, gas and energy consumption. From a technical point of view, CVDl model is used to characterise the phenomena involved during polysilicon deposition, linking growth rate distribution to operating conditions. An optimization is ...

The material described in this article deals with waste conversion into energy vectors by pyrolysis, steam cracking, or oxidation of liquid biomass, carried out at small to medium scale. design a bench-scale experimental setup devoted gas phase kinetic data generation tubular reactor under laminar regime close plug flow is detailed based on very simple approach. Validation the designed was succ...

We present a moving horizon estimation (MHE) application for multi-zone low-density (LDPE) polyethylene tubular reactors. The strategy incorporates a first-principles dynamic model comprised of large sets of nonlinear partial, differential and algebraic equations (PDAEs). It was found that limited temperature measurements distributed along the reactor are sufficient to infer all the model state...