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Economically recovering sulfuric acid heat



Economically recovering sulfuric acid heat



Chemical Engineering Progress 82(7): 34-38



The Monsanto Enviro-Chem's Heat Recovery System (HRS) is described. It cools sulfuric acid to produce steam at pressures of <less or => 1,140 kPa and achieves thermal efficiencies of 90-95%. The HRS is based on the discovery that there is a range or "window" of concentration sufficiently wide to achieve high absorption efficiency and low corrosion while operating at high temperature (> 120 degrees C). The major equipment consists of a packed tower, recirculating pump, pump tank, and boiler.

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Accession: 001341098

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