By Navin G. Ashar, Kiran R. Golwalkar

This serious quantity presents sensible insights on sulfuric acid and similar plant layout and on innovations to enhance and increase considerably the potency of an present plant by way of small differences. The booklet presents 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 according to sulfur which are additionally linked to the manufacture of sulfuric acid. total, engineers and plant managers can be brought to applied sciences for making their sulfuric acid organisations extra efficient, remunerative, and environmentally pleasant. A useful consultant to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents covers sulfuric acid and by-product chemical plant info from the nuts-and-bolts point to a holistic standpoint in accordance with genuine box event. The e-book is fundamental to an individual fascinated with enforcing 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

A controlled stream of 25–30% oleum is added to maintain the strength at 65%. An inline cooler is provided to control the temperature at 40–43 °C at the inlet of the tower. A product outlet valve is opened to take out the 65% oleum from the tower and transfer it to the storage tanks. The cooling water stream is kept under negative pressure by running it using a siphon. This prevents ingress of water into the oleum tower in the case of a leak. Continuous monitoring of the conductivity/pH of the exit water stream from the cooler is carried out and a warning device is set to indicate a leaking tube.

4. Use of turbulent contact absorber This uses light spheres of plastic material in the absorber column instead of the conventional tower packings. The spheres are retained between suitably designed retainer plates and are self-cleaning. 5 gives an overview of techniques that have a positive effect on, that is reduce, the emissions of H2SO4 (taken as the sum of SO3 and H2SO4) during the manufacture of sulfuric acid. Most sulfuric acid plants have taken general primary optimization measures like process control measures.

Strength of the recirculation stream is monitored and the addition of oleum is stopped at the right time. Continuous method: Liquid SO3 is slowly added to the boot of the separate oleum tower wherein 65% oleum is being circulated. The strength and temperature increase as a result. A controlled stream of 25–30% oleum is added to maintain the strength at 65%. An inline cooler is provided to control the temperature at 40–43 °C at the inlet of the tower. A product outlet valve is opened to take out the 65% oleum from the tower and transfer it to the storage tanks.

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