The KLAREN self-cleaning heat exchange technology offers the possibility of revamping existing vertical conventional severely fouling exchangers into a self-cleaning configuration. Much interest has arisen for the revamp of severely fouling reboilers, evaporators and crystallizers. In general, the requirements for the majority of revamps can be summarized as follows:
- The same process conditions should be maintained.
- The connections to the column or flash vessel should be maintained.
- The installed pumps should be used.
- The existing channels should also be re-used where possible.
- The revamp must be carried out within the available space.
A typical example for the revamp of an existing reboiler into a KLAREN self-cleaning configuration is shown in the figures 1 and 2.
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| Figure 1: Conventional reboiler. | Figure 2: Conventional reboiler after revamp. |
