Industrial reactors provide a controlled environment where chemical reactions can take place. They are often used for various processes such as incubation, distillation, and crystallization.
Reactors can be jacketed or non-jacketed. The temperature of a jacketed tank is maintained by cold water, steam or hot oil circulating through the outer shell.
Packed Bed Reactor
A packed bed reactor is a device used to promote chemical reactions in liquid and gas streams. They are often used as a means of increasing the surface area of a catalyst. A typical packed bed consists of a column filled with catalyst particles. They can be either random or structured to optimize a specific reaction.
The combination of variability in flow path lengths and velocity along these paths results in significant broadening of solute residence time distribution within a column. This contributes to poor peak resolution in separation processes involving multi-component flow. A thorough understanding of how species move through the different void fractions of packed beds is critical to designing improved packed bed systems. This is particularly important in microgravity, where a better understanding of mass transfer processes could lead to the development of new technologies for water purification aboard ISS. This project will address these issues by performing experimental work and developing a computational model of the flow regimes and pressure drop in a cylindrical packed bed made of uniformly sized spheres.
Continuous Reactor
Unlike batch reactors that require significant energy intake to start and shutdown, CSTRs operate continuously with a continuous feed of reactants and a continuous discharge of the product. This results in lower energy costs and higher yields.
CSTRs are characterized by their rapid heat and mass transfer performance and their good control of process variables like concentration profile, temperature, foaming and reaction speed. They also enable the handling of solids and slurries. However, a non-ideal flow behavior occurs as a consequence of the geometry, baffles and corners of the buy used reactors, and can lead to dead space or short-circuiting. This phenomenon can compromise safety, quality or the yield. To resolve this problem, multi stage CSTRs are used in a cascade. They exhibit a tighter residence time distribution, as well as better reaction resolution, than single stage CSTRs.
Heat Exchanger Reactor
A heat exchanger reactor is a reactor where the auxiliary fluid media is heated or cooled to optimise the temperature profile of the reactant within the reactor. This type of reactor is commonly used in chemical processes where there is an exothermic reaction.
It can also be used in thermochemical processes. Heat exchanger reactors have a number of advantages over other types of reactors, including their high efficiency and low operating costs. They are also highly modular and easy to maintain. The used reactors for sale comprises panels of the printed circuit heat exchanger type (PCHE). The PCHEs have first set of channels for passage of the auxiliary fluid and second set of channels for passage of the reactant fluid.
Reactors can be jacketed or non-jacketed. The temperature of a jacketed tank is maintained by cold water, steam or hot oil circulating through the outer shell.
Packed Bed Reactor
A packed bed reactor is a device used to promote chemical reactions in liquid and gas streams. They are often used as a means of increasing the surface area of a catalyst. A typical packed bed consists of a column filled with catalyst particles. They can be either random or structured to optimize a specific reaction.
The combination of variability in flow path lengths and velocity along these paths results in significant broadening of solute residence time distribution within a column. This contributes to poor peak resolution in separation processes involving multi-component flow. A thorough understanding of how species move through the different void fractions of packed beds is critical to designing improved packed bed systems. This is particularly important in microgravity, where a better understanding of mass transfer processes could lead to the development of new technologies for water purification aboard ISS. This project will address these issues by performing experimental work and developing a computational model of the flow regimes and pressure drop in a cylindrical packed bed made of uniformly sized spheres.
Continuous Reactor
Unlike batch reactors that require significant energy intake to start and shutdown, CSTRs operate continuously with a continuous feed of reactants and a continuous discharge of the product. This results in lower energy costs and higher yields.
CSTRs are characterized by their rapid heat and mass transfer performance and their good control of process variables like concentration profile, temperature, foaming and reaction speed. They also enable the handling of solids and slurries. However, a non-ideal flow behavior occurs as a consequence of the geometry, baffles and corners of the buy used reactors, and can lead to dead space or short-circuiting. This phenomenon can compromise safety, quality or the yield. To resolve this problem, multi stage CSTRs are used in a cascade. They exhibit a tighter residence time distribution, as well as better reaction resolution, than single stage CSTRs.
Heat Exchanger Reactor
A heat exchanger reactor is a reactor where the auxiliary fluid media is heated or cooled to optimise the temperature profile of the reactant within the reactor. This type of reactor is commonly used in chemical processes where there is an exothermic reaction.
It can also be used in thermochemical processes. Heat exchanger reactors have a number of advantages over other types of reactors, including their high efficiency and low operating costs. They are also highly modular and easy to maintain. The used reactors for sale comprises panels of the printed circuit heat exchanger type (PCHE). The PCHEs have first set of channels for passage of the auxiliary fluid and second set of channels for passage of the reactant fluid.
Fluidized Bed Reactor
A fluidized bed reactor uses gases as a fluidizing medium to suspend a solid catalyst bed. The fluidized bed is a mechanical mixture of many different types of particulate solid material, created by long-term natural processes (heating, cooling, thermal dilatation, chopping, crushing, atmospheric changes and river erosion) as well as technological processes like grinding, spraying, drying and coating.
Depending on the gas flow velocity, the fluidized bed can be stationary or a bubbling fluidized bed. In the latter case, aggregative processes occur and particle mixing is intensive in axial and radial directions, but not so much in the free board zone above the bed.
