New PDF release: A Practical Guide to the Manufacture of Sulfuric Acid,

By Navin G. Ashar, Kiran R. Golwalkar

ISBN-10: 3319020412

ISBN-13: 9783319020419

ISBN-10: 3319020420

ISBN-13: 9783319020426

This serious quantity presents useful insights on sulfuric acid and comparable plant layout and on thoughts to enhance and improve considerably the potency of an latest plant by way of small transformations. The publication offers readers with a greater knowing of the state-of-art in sulfuric acid manufacture in addition to, importantly, within the manufacture of value-added items in accordance with sulfur which are additionally linked to the manufacture of sulfuric acid. total, engineers and plant managers could be brought to applied sciences for making their sulfuric acid firms extra efficient, remunerative, and environmentally pleasant. A sensible advisor to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents covers sulfuric acid and by-product chemical plant information from the nuts-and-bolts point to a holistic standpoint in accordance with real box event. The e-book is integral to somebody enthusiastic about imposing a sulfuric acid or similar chemical plant.

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Additional info for A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents

Example text

Specially sealed level indicator tubes are provided on the boot of the tower. Either a transparent tube is attached to see the top of the indicator rod attached to a float or a magnet is attached to the top of the rod. This magnet moves up and down in a stainless steel tube. An external follower magnet indicates the exact position of the inner magnet. Pure Teflon (PTFE) gaskets are used as a precautionary measure in all flanged joints of pipeline and valves. 2 Process for Oleum Manufacture 25 concentration of SO3 in the process gas streams.

SO3 combines with water vapor present in the gases and the sulfuric acid formed is condensed on specially designed condensers (where acid mist formation is minimized). 0% SO2) since autothermal operation is difficult at such low strengths. 5 Pressure Process The conversion of SO2 to SO3 increases as the operating pressure is increased since there is a reduction in volume during the reaction 2SO 2 + O 2 ® 2SO3 The increase can be achieved by maintaining optimum temperatures in the catalyst bed. Increasing the process gas pressure can reduce the required size of the equipment, but the higher power consumption of the blower offsets the advantage gained.

The lean oleum from the exit exchanges heat with the incoming strong oleum for preheating before entry into the boiler. It is then further cooled in separate lean oleum coolers before putting it back into the oleum tower for fortification by plant gases. In a twin-tower system, the first oleum tower operates at 30–35% oleum strength while the second oleum tower, which is in series with the first, operates at 21–24% for further absorption of SO3 (from the exit gases of the first oleum tower). 4 Chlorosulfonic Acid Chlorosulfonic acid [CSA] can be manufactured by using hydrochloric acid and sulfur trioxide and the process varies depending on the mode of raw material available— whether liquid or gaseous.

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A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents by Navin G. Ashar, Kiran R. Golwalkar

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