I

50 psig Steam

FIG. 3.10.4 Thermocompressor to upgrade 30-psig steam.

Waste Heat

Low-Pressure Steam

High-Pressure Steam

Heat-Sensitive Fluid

Waste Heat

Low-Pressure Steam

High-Pressure Steam

Heat-Sensitive Fluid

FIG. 3.10.5 Staged heating to reduce product degradation.

FIG. 3.10.5 Staged heating to reduce product degradation.

Using Air-Fin Coolers

This option reduces the use of cooling water.

Recovering Seal Flushes and Purges

A company should examine each seal flush and purge for a possible source of waste. Most can be recycled to the process with little difficulty.

Using Seal-less Pumps

Leaking pump seals lose product and create environmental problems. Using can-type, sealless pumps or magnetically driven sealless pumps eliminates these losses.

Using Online Cleaning Techniques

Online cleaning devices such as recirculated sponge balls or reversing brushes keep tube surfaces clean so that lower temperature heat sources can be used.

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