Chemical Reaction Engineering Lab

CHEMICAL REACTION ENGINEERING LAB

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COMBINED FLOW REACTOR CRE-111

This set-up is used to study a non-catalytic homogeneous second order liquid phase reaction under ambient condition in a combined reactor. It consists of two reactors connected in series; one is plug flow reactor and another mixed flow reactor. In an ideal Plug Flow Reactor (PFTR) there is no mixing in the direction of flow and complete mixing perpendicular to direction of flow. Concentration of reactants varies along the length of reactor but not in radial direction. In case of a coil turbulence is introduced due to frequent change in direction of flow and presence of secondary flow, so a higher value of reaction rate constant is expected in coil tube type plug flow reactor. In an ideal MFR (i.e. an ideal steady state flow reactor) the contents in reactor are well mixed and have uniform composition throughout. Thus the exit stream has the same composition as the fluid within the reactor. The set up consists of two feed tanks through which two reactants are fed to the reactors fitted in series. Rotameters are provided to measure the individual flow of Chemicals. The flow rate can be adjusted by operating the needle valves provided on respective rotameter. The compressed air is used for circulation of feed. 1st is a helical coil tube type reactor made up of SS pipe. Reactants enter at lower end coming out of the top of coil from where it is fed to a MFR fitted with stirrer for proper mixing. Samples are collected for analysis. Pressure Regulator, Pressure Gauge and Safety Valve are fitted in the compressed air line.

RTD STUDIES IN PACKED BED REACTOR COMPRESSED AIR FEED SYSTEM CRE-113

Axial diffusion and dispersion of fluid in packed beds are important for design and operation of separation equipment and Chemicals reactors. The tracer technique, the most widely used method for the study of axial dispersion. In stimulus response experimentation, we perturb the system using pulse input of tracer and then see how the system reacts or responds to this stimulus. The analysis of the response gives the desired information about the system. The setup consists of a glass column packed with Rasching Rings and one feed tank. Water is fed to the reactor through liquid distributor, fitted at the bottom of the column. Rotameter is provided to measure the flow of water. The flow rate can be adjusted by operating the needle valve provided on Rotameter. For understanding the R.T.D. characteristics, a special arrangement to inject tracer into the lower end of reactor, using a syringe, is provided. Samples can be taken periodically from the top outlet of reactor. Pressure Regulator & Pressure Gauge are fitted in the compressed air line.

PACKED BED REACTOR COMPRESSED AIR FEED SYSTEM CRE-110

The setup consists of a glass column packed with Rasching Rings and two feed tanks. Reactants are fed to the reactor through liquid distributor, fitted at the bottom of the column. Rotameters are provided to measure the individual flow of Chemicals. The flow rate can be adjusted by operating the needle valves provided on respective Rotameter. The compressed air is used for circulation of feed. Samples can be taken periodically from the top outlet of reactor. Pressure Regulator & Pressure Gauge are fitted in the compressed air line.

ISOTHERMAL BATCH REACTOR CRE-107

A batch reactor is a closed system with no input and output streams. A batch reactor can operate under conditions like Isothermal (Temperature of Reaction Mass remains constant), Perfectly mixed (composition of reaction mixture is uniform throughout), and constant volume (volume of the reaction mixture within the reactor remains constant, there is no appreciable change in the density of reaction mass). This set-up is used to study a non-catalytic homogeneous reaction under isothermal condition. The set up consists of a Reactor fitted in a constant temperature water bath. One stirrer is fitted for mixing the reactants in reactor and other is fitted in water bath to keep the uniform temperature throughout in the bath. The temperature of bath can be maintained from ambient to 90C with the help of Digital Temperature indicator Cum Controller. Samples can be taken out with the help of a sampling pipette.

RTD STUDY IN PLUG FLOW REACTOR COILED TUBE TYPE CRE-105

Real reactors do not satisfy the idealized flow patterns, back mix flow or plug flow deviation from ideality can be due to channeling of fluid through the vessel, recycling of fluid within the vessel or due to the presence of stagnant region or pockets of fluid in the vessel. To predict the exact behavior of a vessel as a Chemicals reactor, RTD or stimulus response technique is used. The setup consists of one feed tank through which water is fed to the reactor. The flow rate can be adjusted by operating the needle valve and measured by Rotameter. The compressed air is used for circulation of feed. It is a helical coil tube type plug flow reactor made up of Stainless steel pipe. Reactants enter at lower end coming out of the top of coil from where samples are collected for analysis. For understanding the R.T.D. characteristics, a special arrangement to inject tracer into the lower end of reactor, using a syringe is provided. Pressure Regulator & Pressure Gauge are fitted in the compressed air line.

ISOTHERMAL PLUG FLOW REACTOR COILED TUBE TYPE COMPRESSED AIR FEED SYSTEM CRE-106

In an ideal Plug Flow Reactor (PFTR) there is no mixing in the direction of flow and complete mixing perpendicular to direction of flow. Concentration of reactants varies along the length of reactor but not in radial direction. In case of a coil turbulence is introduced due to frequent change in direction of flow and presence of secondary flow, so a higher value of reaction rate constant is expected in coil tube type plug flow reactor. This set-up is used to study a non-catalytic homogeneous reaction under isothermal condition. The set up consists of two feed tanks through which two reactants are fed to the reactor. Rotameters are provided to measure the individual flow of Chemicals. The flow rate can be adjusted by operating the needle valves provided on respective Rotameter. The compressed air is used for circulation of feed. It is a helical coil tube type reactor kept in a constant temperature water bath to conduct the experiment at various temperatures. Reactants enter at lower end coming out of the top of coil from where samples are collected for analysis. Pressure Regulator, Pressure Gauge and Safety Valve are fitted in the compressed air line.

RTD STUDY IN CONTINUOUS STIRRED TANK REACTOR COMPRESSED AIR FEED SYSTEM CRE-114

Real reactors do not satisfy the idealized flow patterns, back mix flow or plug flow deviation from ideality can be due to channeling of fluid through the vessel, recycling of fluid within the vessel or due to the presence of stagnant region or pockets of fluid in the vessel. To predict the exact behavior of a vessel as a Chemicals reactor, RTD or stimulus response technique is used. The setup consists of one feed tank through which water is fed to the reactor. The flow rate can be adjusted by operating the needle valve and measured by Rotameter. The compressed air is used for circulation of feed. The continuously stirred tank reactor made of Stainless Steel is provided for understanding the R.T.D. characteristics. Pressure Regulator & Pressure Gauge are fitted in the compressed air line.

CASCADE CONTINUOUS STIRRED TANK REACTOR COMPRESSED AIR FEED SYSTEM CRE-103

This setup is CSTR arranged in the series and two feed tanks through which two reactants are fed to the reactor. Rotameters are provided to measure the individual flow of chemicals. The flow rate can be adjusted by operating the needle valves provided on respective rotameter. The compressed air is used for circulation of feed. Reactants from feed tank enter in the first CSTR and are passed to second CSTR and so on. For analysis samples are collected from the different ports provided. Pressure regulator, pressure gauge & safety valve are fitted in the compressed air line.

ISOTHERMAL CONTINUOUS STIRRED TANK REACTOR COMPRESSED AIR FEED SYSTEM CRE-102

This setup is use to study a non-catalytic homogenous second order liquid phase reaction under isothermal condition. The set up consist of two feed tank through which two reactants are fed to the reactor. Rotameters are provided to measure the individual flow of chemicals. The flow rate can be adjusted by operating the needle valves provided on respective rotameter. The compressed air is used for circulation of feed. The CSTR is fitted with stirrer for proper mixing. From top outlet of it samples are collected for analysis constant temperature water bath arrangement is provided to conduct the experiment at various temperatures, pressure regulator, pressure gauge & safety valve are fitted in the compressed air line.

CRE-101          Continuous Stirred Tank Reactor (C.S.T.R)

CRE-103          Cascade (C.S.T.R)

CRE-105          Plug Flow Reactor (Coiled Tube Type)

CRE-107          Isothermal Batch Reactor

CRE-109          Adiabatic Batch Reactor

CRE-111          Combined Flow Reactor

CRE-113          Kinetics of Dissolution of Benzoic Acid

CRE-115          RTD Studies in Plug Flow Reactor

CRE-117          Hydrodynamic of Trickle Bed Reactor

CRE-119          Condensation Polymerization Set-up

CRE-121          Recycled Bed Reactor

CRE-123          Chemical Reactor Teaching Set-up

CRE-102          Isothermal (C.S.T.R)

CRE-104          Plug Flow Reactor (Straight Tube Type)

CRE-106          Isothermal Plug Flow Reactor (Straight Tube Type)

CRE-108          Isothermal Semi-Batch Reactor

CRE-110          Packed Bed Reactor

CRE-112          Liquid Phase Chemical Reactor

CRE-114          RTD Studies in (C.S.T.R)

CRE-116          RTD of Packed Bed Reactor

CRE-118          Emulsion Polymerization Set-up

CRE-120          UV Photo Reactor

CRE-122          Spinning Basket Reactor