slurry reactor design

slurry reactor design

Influence of Operational Strategies for the Recovery of Magnesium

Oct 10 2022The MF PFR is a modular reactor that can be easily scaled up with respect to classical batch stirred reactors whose design at large scales poses severe issues as the volume of the reactor increases 49 The MF PFR 2 slurry exiting the reactor was partially mixed with fresh alkaline solution and recycled back to the reactor in order to induce

CFD for the Design and Optimization of Slurry Bubble Column Reactors

1 Introduction Slurry bubble column reactors SBCRs are multitubular columns operating with gas liquid solid systems mostly under isothermal conditions as the heat of reaction is removed through carefully designed cooling tubes or pipes with a large surface area for heat transfer [1 2] The power needed for mixing and suspending the solid catalyst in SBCRs is primarily provided by the

Three phase slurry reactors Chaudhari 1980 AIChE Journal Wiley

Abstract This article reviews the major developments in the engineering and design of three phase slurry catalytic reactors A general theoretical analysis for predicting the overall rate of reaction in a slurry reactor for various kinetics is presented incorporating all the transport effects

Slurry reactor SlideShare

3 Any mixture of solid liquid or a gas gas is called slurry Sloppy mud cement or mixture of additives in petrochemicals 4 Slurry reactors are three phase reactors meaning they can be used to react solids liquids and gases simultaneously They usually consist of a solids suspended in a liquid through which a gas is bubbled

Slurry Reactors for Gas to Liquid Processes A Review

The slurry reactor has the advantages of simple construction excellent heat transfer performance online catalyst addition and withdrawal and a reasonable interphase mass transfer rate with low energy input which make it very suitable for gas to liquid processes Design Strategies for the Molecular Level Synthesis of Supported Catalysts

Slurry reactors design Big Chemical Encyclopedia

The treatment of PAH contaminated soil in a reactor environment is basically limited to the use of soil slurry many different bioreactor designs exist for the treatment of water contaminated with PAHs As reviewed by Grady 1989 and Grady Lim 1980 these include fixed film reactors plug flow reactors and a variety of gas phase systems to name a few

Slurry working safely with slurry Health and Safety Executive

keep all unnecessary openings to slurry tanks covered Follow the safe system of work outlined below to stay out of trouble if possible mix on a windy day keep children away from the area at all times when working with slurry take all animals out of the building before starting to mix slurry open all doors and windows

Basic Design Equations for Multiphase Reactors

reactors Topics in chemical engineering 8 11 112 679 Chemical Reactors Design Engineering Operation Technip 2024 3 Objectives 1 Review microkinetic and macrokinetic processes that occur in soluble and solid catalyzed systems 2 Review ideal flow patterns for homogeneous systems Macrokinetic Processes in Slurry

Slurry Reactor an overview ScienceDirect Topics

Slurry reactors have the following advantages • They are suitable for large scale designs • Temperature control is effective resulting in high conversion and high values for α • Pressure drop is low • Catalyst can be replenished after separation at the filter •

Slurry Reactors Fundamentals and Applications SpringerLink

Abstract Slurry reactors are applied nowadays in a wide range of chemical processes both on a laboratory scale and in industrial practice Applications range from catalytic hydrogenation of edible oils coal hydrogenation Fischer Tropsch reactions to biological reactors single cell proteins and polymerization reactors

Chemical Reactors > Design of The Reactors The Engineering Concepts

The reactor is heated by high pressure steam which has a temperature of 470 K and is fed into the reactor at point 1 and leaves the reactor at point 2 The reactants flow through the tubes Tubular reactors are used for example in the steam cracking of ethane propane and butane and naphtha to produce alkenes b Fixed bed reactors

Slurry phase reactor Fischer Tropsch synthesis Big Chemical Encyclopedia

of the technological modifications fischer tropsch synthesis in the liquid phase slurry process may be used to produce either gasoline or light alkenes under appropriate conditions249 251 in a very efficient and economical the slurry reactor conditions appear to establish appropriate redox reduction oxidation conditions throughout …

Three phase slurry reactors Chaudhari 1980 AIChE Journal Wiley

Some major correlations and methods for determining gas liquid and liquid solid mass transfer coefficients and effective diffusivity in liquid filled pores are reviewed Slurry reactors are compared with other three phase reactors such as trickle bed or packed bed reactors and relative merits are pointed out Volume 26 Issue 2 March 1980

Slurry Reactors SLI Process

Slurry reactors are three phase or two phase reactors meaning they can be used to react to solids liquids and gases simultaneously or can be used to interact solids and liquids simultaneously Features Operate in continuous or semi batch mode

Slurry reactor design studies UNT Digital Library

Slurry reactor design studies Showing 1 4 of 258 pages in this report PDF Version Also Available for Download Description

[PDF] Design of slurry reactor for indirect liquefaction applications

The objective of this project is to design and model a conceptual slurry reactor for two indirect liquefaction applications 1 production of methanol and 2 production of hydrocarbon fuels via Fischer Tropsch route A slurry reactor is defined here as a three phase bubble column reactor using a fine catalyst particle suspension in a high molecular weight liquid

Slurry Phase Bio reactor Bioremediation

Typically the slurry contains from 10 to 30% solids by weight This is then placed into a bio reactor as shown above The slurry is mixed to keep solids suspended and microorganisms in contact with the soil contaminants Upon completion of the process the slurry is dewatered and the treated soil can be replaced to it s position

Reactors Slurry Reactor YouTube

To learn more about slurry reactors visit the Visual Encyclopedia of Chemical Engineering

Slurry Reactors for Coal Technology SpringerLink

All of these processes employ three phase slurry reactors In this overview a present state of the art for the models scaleup design and other operational problems associated with these processes are briefly evaluated Shah Gas Liquid Solid Reactor Design McGraw Hill New York 1979 Google Scholar

Modelling of a bubble column slurry reactor for Fischer Tropsch synthesis

hydrodynamics of a slurry bubble column reactor operating in the churn turbulent regime is pictured in Fig 1 The churn turbulent regime of operation is the most optimal one for F T synthesis [1] One of the most important parameters to be estimated for slurry reactor design and scale up is the holdup of gas bubbles in the reactor

Lecture 43 Slurry Reactor Design CosmoLearning Chemical Engineering

Slurry Reactor Design Course Description In simple terms Chemical Engineering deals with the production of a variety of chemicals on large scale Large scale production is associated with the engineering problems such as fluid flow heat and mass transfer mixing and all types of unit operations

Sasol reactors Big Chemical Encyclopedia

The slurry reactor is the second stage of a three step process to convert natural gas into a highly paraffinic water clear hydrocarbon liquid The AGC 21 technology as in the Sasol process is being developed to utilize the large reserves of natural gas that are too remote for economical transportation via pipelines

Three phase slurry reactors reactor design Big Chemical Encyclopedia

The reactor is designed to maintain a mixed three phase slurry of feedstock fine powder catalyst and hydrogen and to promote effective contact [] The design of conventional biological reactors is very similar to those of gas liquid slurry and polymerization reactors outlined in other chapters

Design of a Three Phase Slurry Reactor for Soil Processing

Abstract For the efflcient treatment of excavated polluted soils particle sizes in between 1 /im and 4000 fim in a slurry process the coarse non polluted soil fraction has to be removed af

Slurry reactors SlideShare

Slurry Batch Reactor for Hydrogenation 11 Design Equation for a Slurry Reactor Rate can be expressed as rab= kgag Cg Cgi = klag Cli Cl = kcac Cl Cs = ηkaccs and we know cgi= Hcli 𝑟 = 𝑎 𝑐 𝐶𝑔 𝑎 𝑐 𝑎 𝑔 ∗ 1 𝑘 𝑔 𝑎 𝑐 𝑎 𝑔 ⋅ 𝐻 𝑘 𝐿 𝐻 𝑘 𝑐 𝑎 𝑐 𝐻 𝜂𝑘𝑎 𝑐 12

Influence of Operational Strategies for the Recovery of Magnesium

Oct 10 2022the mf pfr is a modular reactor that can be easily scaled up with respect to classical batch stirred reactors whose design at large scales poses severe issues as the volume of the reactor increases 49 the mf pfr was initially tested by vassallo et al 47 to selectively recover mg oh 2 and ca oh 2 at controlled ph values from spent brines …

Slurry Visual Encyclopedia of Chemical Engineering Equipment

Slurry reactors are most frequently used when a liquid reactant must be contacted with a solid catalyst and when a reaction has a high heat of reaction They may be used in such applications as hydrogenation oxidation hydroformylation and ethynylation The reactor shown below is a slurry phase hydrogenation reactor

Three‐phase slurry reactors Multiphase Catalytic Reactors Wiley

This chapter builds on these authors works and attempts to update the reader on developments in the field over the past few decades while retaining the essential reaction and reactor engineering aspects The focus is on the design scale up and operation of three phase slurry reactor systems Citing Literature Previous FigureNext Figure

HCl Leaching Reactor Design Metallurgist Mineral Processing Engineer

Before reactor modification the hot slurry overflowed from the side discharge of one reactor to the top inlet of the next Slurry from the last reactor discharged through a heat exchanger to the solid liquid separation section Three way valves between reactors permitted sampling of the slurry stream during operation and isolation of each

Slurry reactor Design Issues Big Chemical Encyclopedia

Slurry reactor Design Issues Multiple phases exist in slurry reactors The solid phase is typically a catalyst The liquid phase is a reactant or product There can also be a gas phase usually one of the reactants The design issues involve separating the phases and recycling catalyst and reactant back to the reactor []

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