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(PDF) Reactors in Process Engineering

(PDF) Reactors in Process Engineering

equipment such as piping, valves, control systems, heat exchangers, and mixers. The . . For the special case of a packed bed catalytic reactor with plug flow, the equation .

A packed bed Ammonia Fiber Expansion reactor system for .

A packed bed Ammonia Fiber Expansion reactor system for .

Packed bed AFEX system. The packed bed AFEX reactor system was assembled on a portable skid, which supported three bed tubes (Supplementary Figure 1).Dimensions and ports of the three bed tubes are shown Supplementary Figure 2.In normal operation, the bed tubes were mounted vertically, with the inlet at the top and exit at the bottom; however, to investigate buoyancy effects during steam .

The plasma enhanced surface reactions in a packed bed .

The plasma enhanced surface reactions in a packed bed .

The plasma enhanced surface reactions in a packed bed dielectric barrier discharge reactor To cite this article: He Cheng et al 2020 J. Phys. D: Appl. Phys. 53 144001 View the article online for updates and enhancements. This content was downloaded from IP address 157.55.39.241 on 09/05/2020 at 00:23

US7763685B2 - Method of discharging a polymer from a .

US7763685B2 - Method of discharging a polymer from a .

A method of discharging polymer from a continuously operated polymerization reactor, wherein at least a monomer is polymerized to form polymer particles, the method comprising adjusting the discharge rate of the polymer particles by means of a piston valve having a piston element connected to an actuator, said actuator being able to modulate the piston stroke inside said piston valve.

Transient Barrier Discharge Characteristics of Parallel .

Transient Barrier Discharge Characteristics of Parallel .

Summary: Barrier discharge has been used for ozone generation for water treatments and pollutant gas removal. An experiment has been conducted to observe transient barrier discharge characteristics of parallel‐plate‐type, 3 mm diameter, spherical glass beads packed‐bed, non‐thermal plasma reactors under high‐humidity conditions.

Ready for the challenge: Valves enhance fluidised-bed .

Ready for the challenge: Valves enhance fluidised-bed .

Challenges for valves Valves should be able to withstand a high cycling rate, with a range from 200 000 to 1 million cycles yearly, depending on the type of reactor and discharge piping. Meanwhile, in most applications, a fast cycle time of less than 2 - 3 sec is required. Therefore, high cycle design and construction of both the valve and the .

US6255411B1 - Reactor product discharge system - Google .

US6255411B1 - Reactor product discharge system - Google .

A process is disclosed for removing particulate product from a fluidized bed reactor to optimize, within the constraints of the product removal cycle, conservation of gas in which the product is entrained. Data are compiled on the time required for equalizing pressure between product discharge tanks, and these data are used to determine the optimum times for various valves to be open.

Effect of packing materials on the decomposition of .

Effect of packing materials on the decomposition of .

Nov 26, 2013 · The performance of 1,1,1,2-tetrafluoroethane or HFC-134a decomposition and the formation of byproducts in a dielectric barrier discharge plasma reactor were studied with different packing systems such as α-Al2O3 (porous and nonporous), γ-Al2O3 (porous) and ZrO2 (nonporous). Experimental variables such as reactor temperature, initial HFC-134a concentration and oxygen .

Dry Reforming of Methane with Dielectric Barrier Discharge .

Dry Reforming of Methane with Dielectric Barrier Discharge .

A hybrid plasma catalytic system consisting of a dielectric barrier discharge (DBD) reactor and relaxor ferroelectrics is investigated for syngas generation via the carbon dioxide reforming of methane. The study tests three kinds of packing materials, including two relaxor ferroelectrics BaZr0.75T0.25O3 (BZT; εr = 149), BaFe0.5Nb0.5O3 (BFN; εr = 2025), and glass beads (εr = 3–5).

Simplify BOG recondenser design and operation—Part 2

Simplify BOG recondenser design and operation—Part 2

The BOG entering at the top of the BOG recondenser is condensed by contacting the BOG with subcooled LNG from the discharge of the low-pressure (LP) pumps over a packed bed in the BOG recondenser. The pressure (and, therefore, the level) in the packed bed of the BOG recondenser varies with the ratio of LNG vs. supplied BOG.

The Pressure Relief System Design for Industrial Reactors

The Pressure Relief System Design for Industrial Reactors

A quick and simple approach for reactor—emergency relief system design—for runaway chemical reactions is presented. A cookbook for system sizing with all main characteristic dimensions and parameters is shown on one realistic example from process industry. System design was done based on existing theories, standards, and correlations obtained from the literature, which were implemented for .

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and .

Plasma Catalytic Conversion of CH4 to Alkanes, Olefins and .

Olefins and H2 in a Packed Bed DBD Reactor Mohammadreza Taheraslani 1,2,* and Han Gardeniers 1 1 MesoscaleChemical Systems, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; [email protected] (H.G.) 2 Faculty of Science and Technology, University of Twente, P.O. Box 217,

High borosilicate glass packed bed reactor with stainless .

High borosilicate glass packed bed reactor with stainless .

The packed bed reactor has been widely used in chemical reaction, combination, separation and concentration. Different heating or cooling liquids, such as water or oil, can be injected in the interlayer of 1L lab glass reactor for providing a constant temperature for reactions. . PTFE Bottom Discharge Valve. working temp range-60 to 200°C .

Packed Bed Corona Discharge reactor for gas-phase .

Packed Bed Corona Discharge reactor for gas-phase .

Packed Bed Corona discharge reactor Active Switches Gas sampler FTIR PC FQ N O2 C2H4O 2 PC FQ FQ Fig.1 Experimental setup for acetaldehyde removal in the Packed Bed Corona Discharge Reactor. The oxidation of acetaldehyde was evaluated by measuring the CO, CO 2 using an infra-red absorption analyser (En-vironnement SA MIR 9000), and the residual .

How Two-Phase Pressure Control for Reactors Works | Lab .

How Two-Phase Pressure Control for Reactors Works | Lab .

Solution: Unlike traditional control valves, a dome-loaded back pressure regulator with multiple orifices is capable of processing liquid and gas at the same time while maintaining highly stable pressure. These devices do not rely on springs or traditional valve seats, but rather use a direct 1:1 gas pressure on top of the diaphragm to maintain stability across a 100,000:1 flow range.

Valves enhance fluidized-bed polymerization: Part 2 .

Valves enhance fluidized-bed polymerization: Part 2 .

Valves play a central role in the product discharge system, and proper valve performance is critical in the discharge line(s) including the product chamber(s). The valve should be able to withstand a high-cycling rate, which could be over 200 000 or even 400 000 cycles per year.

Fluid modelling of a packed bed dielectric barrier .

Fluid modelling of a packed bed dielectric barrier .

A packed bed dielectric barrier discharge plasma reactor is computationally studied with a fluid model. Two different complementary axisymmetric 2D geometries are used to mimic the intrinsic 3D problem.

Innovative Approach for Benzene Degradation Using Hybrid .

Innovative Approach for Benzene Degradation Using Hybrid .

An innovative plasma reactor, which generates hybrid surface/packed-bed discharge (HSPBD) plasmas, was employed for the degradation of benzene. The HSPBD reactor was found to display remarkably better benzene degradation, mineralization, and energy performance than surface or packed-bed discharge reactors alone. The degradation efficiency, CO2 selectivity, and energy yield in the HSPBD reactor .

Process Improvement to Biomass Pretreatment for Fuels and .

Process Improvement to Biomass Pretreatment for Fuels and .

• Scale up packed bed reactor by factor of 50 • Compare performance with benchmarks • Meet the following critical success factors: . Valve skid: • Valves – • 60 total, 20 actuated . Suction 0, discharge .

Improved performance of parallel surface/packed-bed .

Improved performance of parallel surface/packed-bed .

reactor, a single surface discharge (SD) reactor and packed-bed discharge (PBD) reactor were constructed with different structural parameters. The schematic diagrams of the SD and PBD reactors were shown in figures (b) and (c). The single 2 surface discharge plasma was generated in a cylindrical

Kuentzel (Tube) Fixed Bed Reactor | Parker Autoclave .

Kuentzel (Tube) Fixed Bed Reactor | Parker Autoclave .

High flow tube reactor with 1" (25.4 mm) ID for fixed bed catlyst research A standard, high pressure, high temperature, laboratory, continuous flow reactor. Kuentzel closure tube reactors can be incorporated into Automated Chemical Reactor Systems to simulate complex industrial catalyzed chemistry processes in bench-scale equipment.

WABT - weighted average bed temperature

WABT - weighted average bed temperature

WABT - Weighted Average Bed Temperature is a way to get one representative temperature from an adiabatic reactor (no heat loss or gain to the surroundings), which in reality have an increasing or decreasing temperature profile from inlet to outlet. The temperature profile occurs due to exothermic or endothermic reactions taking place in the reactor. The WABT is used to indicate the catalyst .

Treatment of Selenium-Containing Coal Mining Wastewater .

Treatment of Selenium-Containing Coal Mining Wastewater .

packed bed reactor technology. Envirogen Fluidized Bed Reactor Technology Proven technology with critical advantages for the coal industry Envirogen‟s FBR is an active, fixed-film bioreactor that fosters the growth of microorganisms on a hydraulically fluidized bed of fine media. In this type of reactor, a fluid is passed through a granular .

Zero-dimensional modelling of unpacked and packed bed .

Zero-dimensional modelling of unpacked and packed bed .

0D chemical kinetics modelling, global modelling, filamentary plasma, micro-discharges, packed bed reactors, vibrational kinetics, ammonia synthesis 1. Introduction Ammonia (NH 3) is an important chemical for the manufacturing of various products and is especially crucial in the food industry through its role in fertilizer production [1].

Control Valve Sourcebook — Chemical Process Overview

Control Valve Sourcebook — Chemical Process Overview

The fixed bed reactors are packed with solid catalyst and as reactant passes through the catalyst, reaction takes place. The fluidized bed reactor consists of plates with catalyst. These catalyst particles behave like fluid as gas flows through it. Refer to Figure 3 for a representation of fixed bed and a fluidized bed reactor.

Ready for the challenge: Valves enhance fluidised-bed .

Ready for the challenge: Valves enhance fluidised-bed .

Challenges for valves Valves should be able to withstand a high cycling rate, with a range from 200 000 to 1 million cycles yearly, depending on the type of reactor and discharge piping. Meanwhile, in most applications, a fast cycle time of less than 2 - 3 sec is required. Therefore, high cycle design and construction of both the valve and the .

Consulting - PSRI

Consulting - PSRI

Developed new reactor designs and new conical reactor distributors for a client Designed and developed L-valve feeding systems for TiO2 ores and coke for two PSRI member companies Designed a Restricted Pipe Discharge System (RPDS) to continuously discharge solids from a chlorinator bed to prevent excessive buildup of impurities Determined .

Cold Plasma Reactor to Kill Airborne Viruses | Medgadget

Cold Plasma Reactor to Kill Airborne Viruses | Medgadget

Study in Journal of Hazardous Materials: Inactivation of airborne porcine reproductive and respiratory syndrome virus (PRRSv) by a packed bed dielectric barrier discharge non-thermal plasma

Removal of Ethylene and By-Products Using Packed Bed .

Removal of Ethylene and By-Products Using Packed Bed .

Abstract Ethylene gas was decomposed using packed-bed type dielectric barrier discharge (PBDBD) plasma reactor to keep freshness of fruits. The ethylene gas was diluted with gas mixture of nitrogen, oxygen, and carbon dioxide as simulated gas in the transportation container.

Thermochemical Heat Storage Performance in the Gas/Liquid .

Thermochemical Heat Storage Performance in the Gas/Liquid .

Thermochemical heat storage is a promising technology for improving energy efficiency through the utilization of low-grade waste heat. The formation of a SrCl2 ammine complex was selected as the reaction system for the purpose of this study. Discharge characteristics were evaluated in a packed bed reactor for both the gas-solid reaction and the liquid-solid reaction.