نتایج جستجو برای: catalytic reactor
تعداد نتایج: 106778 فیلتر نتایج به سال:
A microchannel with two inlets and two outlets was tested as a potential reactor to carry out two-phase catalytic phase transfer reaction with phase separation at the exit of the microchannel. The catalytic phase transfer reaction between benzyl chloride and sodium sulfide was chosen as a model reaction. The effect of operational time on the conversion was studied. By utilizing a multiphase par...
Approach • Complete reverse kinetics and Computational Fluid Dynamics (CFD) modeling to optimize reactor geometry for forward reactions • Measure forward kinetics in quartz & Inconel reactors to determine reactor wall catalysis • Measure forward kinetics in reactor packed with membrane material to determine catalytic activity • Measure membrane H2 permeability in presence of clean syngas compon...
This paper presents the formulation of a controller for a Catalytic Flow Reversal Reactor (CFRR) with heat extraction. The controller is based on the Model Predictive Control (MPC) concept. The MPC scheme uses a model that assumes plug flow and neglects radial gradients in the reactor but accounts for the two phases within the reactor. The prediction of the future output behavior from the model...
1. Definition of Catalytic Properties 1.1. Conversion 1.2. Selectivity 1.3. Yield 1.4. Catalyst Deactivation and Sustainability 2. Reactor Types 2.1. Batch Reactor 2.2. Perfectly Mixed Flow Reactor 2.3. Plug Flow Reactor 3. Intrinsic Kinetics 3.1. External Mass and Heat Transport Limitations 3.2. Internal Mass and Heat Transport Limitations 3.3. Flow Pattern Ideality 4. Specific Reactor Types 4...
The coupling of reactions in catalytic membrane reactors provides novel reactor configurations that allow shifting the thermodynamic equilibrium and yields of thermodynamically limited reactions and enhancing significantly the rate of production. An interesting pair to couple is the dehydrogenation of ethylbenzene to styrene and the hydrogenation of nitrobenzene to aniline. Hydrogen produced in...
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...
ترکیبات دارویی و محصولات مراقبت شخصی (ppcps)گروهی از آلاینده های پیشرو هستند، که در سالهای اخیر نگرانی های زیست محیطی را حتی در غلظت های کم به دنبال داشته است. استفاده از فتوکاتالیست های ناهمگن به ویژهtio2 برای فرایند تصفیه آب توجه زیادی را به دلیل تخریب موثر و معدنی سازی ترکیبات آلی مقاوم (سرسخت) را به خود جلب کرده است. در این پروژه، تخریب فتوکاتالیستی آنتی باکتریال bcp (2-بنزیل- 4- کلروفنول) ...
due to high applicability of the fixed bed catalytic naphtha reforming reactors, hydrodynamic features of this kind of reactors with radial flow pattern are improved in this work by utilising computational fluid dynamics technique. effects of catalytic bed porosity, inlet flow rate and flow regime through the bed on the flow distribution within the system are investigated.it is found that the f...
A novel catalytic reactor with dielectric barrier discharge (DBD) at atmospheric pressure was developed for the abatement of volatile organic compounds (VOCs). The novelty of DBD reactor is the metallic catalyst serving also as the inner electrode. The catalytic electrode was prepared from sintered metal fibers (SMF) in the form of a cylindrical tube. Oxides of Mn and Co were deposited on SMF b...
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