By Navin G. Ashar, Kiran R. Golwalkar
This serious quantity presents sensible insights on sulfuric acid and comparable plant layout and on ideas to enhance and improve considerably the potency of an present plant through small transformations. 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 in response to sulfur which are additionally linked to the manufacture of sulfuric acid. total, engineers and plant managers should be brought to applied sciences for making their sulfuric acid organizations 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 info from the nuts-and-bolts point to a holistic standpoint in line with genuine box event. The booklet is quintessential to someone interested in imposing a sulfuric acid or similar chemical plant.
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Additional resources for A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents
In the absorbers, the sulfur trioxide is converted to sulfuric acid by the existing water in the absorber acid. The absorber acid is kept at the desired concentration of approximately 99 wt% by adding water or dilute sulfuric acid. 1% by good design and use of specially adapted doped Cs catalyst. 5% can be achieved with a large loading of catalyst in the last pass and operating at as low a temperature as possible (410–415 °C). 5%, depending on the arrangement of the contact beds and of contact time preceding the intermediate absorber.
There are two distinct variants depending on the heating medium used for boiling oleum. The heating medium is generally in the tubes and the oleum is on the shell side. An entrainment separator is built in or externally provided for separating droplets of oleum from the outgoing SO3 vapors. Steam Heated Oleum Boiler—SHOB The heat transfer rates are high in SHOB due to condensing steam and hence these units are smaller in size. The hold-up of oleum on the shell is also less. These units also need smaller support structures.
It is thus clear that cogeneration improves the economic profitability of a sulfuric acid plant, and by contributing power to the main grid can reduce the load on local generating stations. In the case of thermal power plants operating on sulfurcontaining fuels, this can reduce atmospheric pollution since the quantity of pollutants released per MWH generation is less in the case of a sulfuric acid plant than a thermal power plant. The process steps – burning sulfur, roasting sulfide ores, SO2 conversion, and SO3 absorption – are exothermic processes.
A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents by Navin G. Ashar, Kiran R. Golwalkar