What is a shell and tube reactor?
What is a shell and tube reactor?
In a shell-and-tube reactor, a space outside (shell side) of reaction tubes is filled with a heating medium to circulate the heating medium therein, and a reaction raw material is supplied into the reaction tubes to react therein, while the heat generated during the reaction is removed by means of the heating medium.
How do you size a shell and tube heat exchanger?
Example 3: Taking the shell and tube heat exchanger described in Example 1, how many tubes of 3 inch diameter and 10 ft length should be used? Solution: The surface area per tube will be: Sa = πDL = π (3/12) (10) ft² = 7.854 ft² – (D – tube diameter in ft).
What is tube reactor?
A tubular reactor is a vessel through which flow is continuous, usually at steady state, and configured so that conversion of the chemicals and other dependent variables are functions of position within the reactor rather than of time.
What is multi tubular reactor?
A typical multitubular reactor system can contain several thousand tubes, sometimes up to 20 000 tubes. In these reactor systems, a circulating heat-transfer fluid is used to remove the large heat of reaction and maintain the fixed-bed temperature within a narrow range.
How does a shell and tube condenser work?
A shell and tube exchanger consists of a number of tubes mounted inside a cylindrical shell. Two fluids can exchange heat, one fluid flows over the outside of the tubes while the second fluid flows through the tubes. The fluids can be single or two phase and can flow in a parallel or a cross/counter flow arrangement.
What is the maximum baffle spacing for a shell and tube heat exchanger?
Sinnott (1993) concluded that effective baffle spacing range is between 0.2 to 1 from shell diameter [10].
How does a tubular reactor work?
The tubular reactors work on the principle of continuous flowing systems in a cylindrical geometry. First you will introduce a fluid or fluids that you intend to mix with other reactants into the tubular reactor. As the fluids of reactants flow through the tube or tank, there is a chemical reaction that takes place.
What is a fixed bed reactor?
A fixed bed reactor is a cylindrical tube filled with catalyst pellets with reactants flowing through the bed and being converted into products. The flow of a fixed bed reactor is typically downward. Packed bed reactor.
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