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Shell and tube heat exchanger

A heat exchanger, shell-and-tube technology, applied in the field of shell-and-tube heat exchangers, can solve the problems of increasing equipment cost and space

Inactive Publication Date: 2017-10-13
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Multiple heat exchangers (five in this example) increase equipment cost and required space

Method used

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  • Shell and tube heat exchanger
  • Shell and tube heat exchanger
  • Shell and tube heat exchanger

Examples

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Embodiment Construction

[0017] Shell and tube heat exchangers have a split shell design. The shell side has a partition separating the shell into at least two separate compartments. Each compartment has a feed inlet and a feed outlet. The tube side has multiple tubes and there is at least one tube in each compartment. The tube side has an effluent inlet and an effluent outlet. The feed inlet, feed outlet, effluent inlet and effluent outlet are typically nozzles / orifices.

[0018] Typically, the compartments are substantially equal in size (eg, within ±10%).

[0019] In some embodiments, the housing includes at least one baffle. Typically, each compartment contains at least one baffle. There are usually two or more baffles in each compartment. The baffles are typically arranged to create turbulent flow for efficient indirect heat transfer between the tube-side reactor effluent stream and the shell-side combined feed stream. For example, one baffle can be in contact with the bottom (or side) of ...

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PUM

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Abstract

A shell and tube heat exchanger is described. The shell and tube heat exchanger includes a shell side having a separation plate dividing the shell into at least two compartments, each of the compartments having a feed inlet and a feed outlet; and a tube side comprising a plurality of tubes in the shell, at least one tube in each compartment, and the tube side having an effluent inlet and an effluent outlet. A method of heating a feed stream for a reaction zone using reactor effluent using the shell and tube heat exchanger is also described.

Description

[0001] priority statement [0002] This application claims priority to US Application No. 14 / 635446, filed March 2, 2015, the contents of which are hereby incorporated by reference in their entirety. Background technique [0003] Typically, in hydrotreaters such as kerosene, diesel, gasoline, resid hydrotreaters, and hydrocrackers, the hydrogen-rich recycle gas and fresh hydrocarbon feed are utilized in the process of utilizing the heat available from the reactor effluent is preheated in a series of heat exchangers. The hot hydrocarbon feed and recycle gas are mixed together at the inlet of the feed heater to form a combined feed stream. A feed heater provides the necessary heat to this combined stream to achieve the desired reactor inlet temperature. This particular flow scheme is known as the split heat exchanger scheme. The separate heat exchangers low scheme is used for units that require more than two passes for the feed heater. This flow scheme increases the number o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/06C10G47/00
CPCF28F9/22F28D7/06F28D2021/0075C10G45/00C10G47/00F28D7/16
Inventor K·拉德卡特D·比什特S·查克拉博蒂S·M·班纳吉
Owner UOP LLC