To improve fuel economy and further lower emissions the recirculated exhaust gas needs to be cooled with the possibility that cooling of the exhaust gas may form sulfuric acid condensate in the EGR cooler .

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Application of Concentrated Sulfuric Acid Cooler With Domestic Anodic Protection

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The strong sulfuric acid corrosion resistance and Sandvik SX stainless steel and the facts are introduced . This shell and tube acid cooler without anode protection used in 400 kt / a sulfuric acid plant has achieved maintenance-free for five years .

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Transformation of sulfuric acid cooler and utilization of low level heat energy

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With the improvement of sulfuric acid feeding method multipoint spraying of sulfuric acid is used in the flow of slurry heat transfer by the coarse vacuum cooler at the phosphoric acid reactor so as to eliminate local supersaturation ;

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