Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Flow Analysis in a Radial Flow Fixed Bed Reactor

Flow Analysis in a Radial Flow Fixed Bed Reactor

A major design task in radial flow fixed bed reactors is the effect of flow maldistribution in the catalyst bed of the reactor. In partnership with Cambridge Chemical Technologies, Inc. (CCTI) and a leading petrochemical company, a COMSOL Multiphysics model was created to simulate the flow patterns through a given reactor geometry.

Modeling and Simulation of Natural gas dehydration reactor

Modeling and Simulation of Natural gas dehydration reactor

In the present study, a steady state mathematical model was developed to simulate an adsorption process for dehydration of a gas stream in a fixed bed reactor using molecular sieves. Pressure drop inside the bed was calculated by Ergun equation.

Simulation Of Catalytic Heterogeneous Reactions In Hysys .

Simulation Of Catalytic Heterogeneous Reactions In Hysys .

I need you advise.I am trying to simulate heterogeneous catalytic reaction in HYSYS. My main goal is to design reactor that will be a adequate model of my expiremental work. Namely, I engaged in ethanol dehydration over solid heterogeneous catalyst (Al2O3), temperature= 350-400 C, atm presure, PFR (reactor) fixed-bed catalyst.

NH3 adsorption/desorption modeling in a fixed bed reactor

NH3 adsorption/desorption modeling in a fixed bed reactor

2.2.1. The reactor model th the variation of i In the given model, the fixed bed reactor is described as heterogeneous CSTR model. The main assumptions made for the reactor model are: no gas phase accumulation and no diffusion resistance, which means all sites are .

Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5

Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5

Methanol dehydration reaction: 2 CH 3OH ↔ DME + H 2O ∆H= - 21.255 kJ/mol. Dimethyl ether (DME) is regarded as an environmentally benign fuel for vehicles. Two kinds of reactor technologies for DME synthesis have been proposed by previous researchers: the fixed-bed and the slurry reactor [4]. As the

(PDF) Modeling of Industrial Fixed Bed Reactor to Produce .

(PDF) Modeling of Industrial Fixed Bed Reactor to Produce .

Dehydration of methanol on [gamma]-Al[sub 2]O[sub 3] was studied in a differential fixed-bed reactor at a pressure of 146 kPa in a temperature range of 290-360 [degrees]C.

Fixed Bed Reactor Technology ClearFox® wastewater treatment

Fixed Bed Reactor Technology ClearFox® wastewater treatment

Jun 09, 2020 · Downstream of the fixed bed reactor, the wastewater flows with gravitation to the secondary sedimentation where secondary sludge and supernatant water are separated. The sludge return pipe can optionally be used for denitrification. The produced sludge can deposit in the secondary sedimentation chamber and is returned with a submersible motor .

Fluidized bed reactor - Open Source Ecology

Fluidized bed reactor - Open Source Ecology

Reactor for polylactic acid vacuum dehydration. A reactor configured for polylactic acid dehydration will use a reactor core that can maintain a near vacuum (0.5 torres) and can be heated to 200 C. The meltsolid state would be disturbed by gas flow and heat must be added through a heat jacket either configured for hot oil, steam, or electric .

fixed bed reactor hydrogenation

fixed bed reactor hydrogenation

Flexible Operation of Fixed‐Bed Reactors for a Catalytic . Dec 16, 2015 · CO 2 hydrogenation over Fe catalysts to short‐chain hydrocarbons, which can be used to adjust the heating value of substitute natural gas, is investigated as example reaction. A specific reactor design for flexible operation with gas recycling is a consequence of the .

Simulation Of Catalytic Heterogeneous Reactions In Hysys .

Simulation Of Catalytic Heterogeneous Reactions In Hysys .

I need you advise.I am trying to simulate heterogeneous catalytic reaction in HYSYS. My main goal is to design reactor that will be a adequate model of my expiremental work. Namely, I engaged in ethanol dehydration over solid heterogeneous catalyst (Al2O3), temperature= 350-400 C, atm presure, PFR (reactor) fixed-bed catalyst.

Computational Fluid Dynamics for Fixed Bed Reactor Design .

Computational Fluid Dynamics for Fixed Bed Reactor Design .

Flow, heat, and mass transfer in fixed beds of catalyst particles are complex phenomena and, when combined with catalytic reactions, are multiscale in both time and space; therefore, advanced computational techniques are being applied to fixed bed modeling to an ever-greater extent. The fast-growing literature on the use of computational fluid dynamics (CFD) in fixed bed design reflects the .

Fluidized bed reactor - Wikipedia

Fluidized bed reactor - Wikipedia

A fluidized bed reactor (FBR) is a type of reactor device that can be used to carry out a variety of multiphase chemical reactions. In this type of reactor, a fluid (gas or liquid) is passed through a solid granular material (usually a catalyst possibly shaped as tiny spheres) at high enough speeds to suspend the solid and cause it to behave as though it were a fluid.

US20150265992A1 - Reactor and process for dehydration of .

US20150265992A1 - Reactor and process for dehydration of .

Because of the high temperatures required to effect the dehydration reaction and the high cost of fabrication of such reactors and fired heaters, the multi-tubular reactors were replaced by fixed-bed, adiabatic reactors which have been in commercial service since early 70's.

Validation of Experimental Results Through Reactor .

Validation of Experimental Results Through Reactor .

In this research a one-dimensional mathematical model was developed to investigate the effects of inlet temperature, pressure, and feed flow rate on an adiabatic fixed bed reactor over Na-HZSM5 catalyst for dehydration of methanol to dimethyl ether.

Modeling and Simulation of Natural gas dehydration reactor

Modeling and Simulation of Natural gas dehydration reactor

In the present study, a steady state mathematical model was developed to simulate an adsorption process for dehydration of a gas stream in a fixed bed reactor using molecular sieves. Pressure drop inside the bed was calculated by Ergun equation.

Modeling and Simulation of Natural gas dehydration reactor

Modeling and Simulation of Natural gas dehydration reactor

dehydration of a gas stream in a fixed bed reactor using molecular sieves. Pressure drop inside the bed was calculated by Ergun equation. Heat transfer outside the solid particles s assumed wa to be convective and inside the particle s assumed to be diffusive. The results obtained from wa

Modeling and Simulation of Natural gas dehydration reactor .

Modeling and Simulation of Natural gas dehydration reactor .

Molecular sieves are considered as one of the most important materials that are used as solid desiccant materials in industrial natural gas dehydration. In the present study, a steady state mathematical model was developed to simulate an adsorption process for dehydration of a gas stream in a fixed bed reactor using molecular sieves.

Abstract Process Economics Program Report 235 CHEMICALS .

Abstract Process Economics Program Report 235 CHEMICALS .

4.4 Ethylene From Ethanol by Adiabatic Fixed Bed Catalytic Dehydration Total Fixed Capital for Different Processes and Feedstocks... 4-27 4.5 Ethylene From Ethanol by Adiabatic Fixed Bed Catalytic Dehydration Product Value for Different Processes and Feedstocks ... 4-28 4.6 Ethylene From Ethanol by Adiabatic Fixed Bed Catalytic Dehydration

REACTOR AND PROCESS FOR THE DEHYDRATION OF . - Justia

REACTOR AND PROCESS FOR THE DEHYDRATION OF . - Justia

Mar 24, 2017 · The endothermic dehydration of ethanol to ethylene has been practiced for many years. The early commercial reactors were based on isothermal., multi-tubular shell and tube arrangements in which the reactant ethanol would flow through the reactor tubes which were packed with a fixed bed .

Isobutene hydration in a countercurrent flow fixed bed reactor

Isobutene hydration in a countercurrent flow fixed bed reactor

Isobutene hydration in a countercurrent flow fixed bed reactor

WO2016083989A1 - A fixed bed reactor - Google Patents

WO2016083989A1 - A fixed bed reactor - Google Patents

A fixed bed reactor Download PDF Info Publication number WO2016083989A1. WO2016083989A1 PCT/IB2015/059069 IB2015059069W WO2016083989A1 WO 2016083989 A1 WO2016083989 A1 WO 2016083989A1 IB 2015059069 W IB2015059069 W IB 2015059069W WO 2016083989 A1 WO2016083989 A1 WO 2016083989A1 Authority WO WIPO (PCT) Prior art keywords reactor .

Simulation of fixed bed reactor for dimethyl ether synthesis

Simulation of fixed bed reactor for dimethyl ether synthesis

ized bed reactors is in the initial stage of the laboratory scale, and its feasibility is not yet established. Investigators are studying two different reactor types for the commercialization of DME synthe-bu:bblinsi sg slurry reactor and fixed beurry re In al d re. s actoractor fine catalyst particles are suspended in a solvent and feed gas enters

Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5

Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5

Methanol dehydration reaction: 2 CH 3OH ↔ DME + H 2O ∆H= - 21.255 kJ/mol. Dimethyl ether (DME) is regarded as an environmentally benign fuel for vehicles. Two kinds of reactor technologies for DME synthesis have been proposed by previous researchers: the fixed-bed and the slurry reactor [4]. As the

Catalytic dehydration of methanol to dimethyl ether .

Catalytic dehydration of methanol to dimethyl ether .

methanol dehydration reaction is considered one of the basic reactions in the so-called C-1 chemistry (e. g., MTG Process; Chang et al.,1983). The aim of this work is to present the experimental and simulated results of an adiabatic fixed bed dehydration reactor operated at conditions typically employed in a large-scale reactor.

ETHYLBENZENE DEHYDROGENATION INTO STYRENE: KINETIC .

ETHYLBENZENE DEHYDROGENATION INTO STYRENE: KINETIC .

The intrinsic kinetic parameters were used with the heterogeneous fixed bed reactor model which is explicitly accounting for the diffusional limitations inside the porous catalyst. Multi-bed industrial adiabatic reactors with axial flow and radial flow were simulated and the effect of the operating conditions on the reactor performance was

Simulation of Fixed Bed Reactor for the Dehydration .

Simulation of Fixed Bed Reactor for the Dehydration .

Simulation of Fixed Bed Reactor for the Dehydration Reaction from Alcohol Gas to Ethylene. Article Preview. Abstract: A numerical model has been established and solved to describe the dehydration reaction from alcohol to ethylene. The influences of the gas velocity and the temperature of the feeding gas to the process of the reaction were .

Heterogeneous catalytic reactor - Wikipedia

Heterogeneous catalytic reactor - Wikipedia

Fixed bed reactors A fixed bed reactor is a cylindrical tube filled with catalyst pellets with reactants flowing through the bed and being converted into products. The catalyst may have multiple configuration including: one large bed, several horizontal beds, several .

US20150265992A1 - Reactor and process for dehydration of .

US20150265992A1 - Reactor and process for dehydration of .

Because of the high temperatures required to effect the dehydration reaction and the high cost of fabrication of such reactors and fired heaters, the multi-tubular reactors were replaced by fixed-bed, adiabatic reactors which have been in commercial service since early 70's.

Chapter 3 SYNTHESIS OF ACROLEIN BY DEHYDRATION OF .

Chapter 3 SYNTHESIS OF ACROLEIN BY DEHYDRATION OF .

Dehydration of glycerol was carried out at atmospheric pressure in a fixed bed catalytic reactor, with a down flow fixed bed equipped with as upstream vaporizer and downstream condenser. The liquid feed was fed by double piston pump (Well Chrom HPLC-pump K-120) to the vaporizer by using N2 as a carrier gas. The catalyst was

FIXED BED CATALYTIC REACTORS—CURRENT DESIGN STATUS .

FIXED BED CATALYTIC REACTORS—CURRENT DESIGN STATUS .

May 01, 2002 · Non-Adiabatic Multitubular Fixed-Bed Catalytic Reactor Model Coupled with Shell-Side Coolant CFD Model. Industrial & Engineering Chemistry Research 2013, 52 (44), 15437-15446. DOI: 10.1021/ie4006832. Yisu Nie, Paul M. Witt, Anshul Agarwal, and Lorenz T. Biegler .