Process heat recovery boilers, or waste heat boilers, are widely used, particularly on ethylene and ammonia plants and on sulfuric acid and nitric acid plants. This type of boiler has developed as a cross between a conventional shell-and-tube heat exchanger and a firetube boiler.

Author: Dr V T Sathyanathan Acid System BFW Systems. In most acid plants heat from the acid system is rejected to cooling water through the acid coolers. This energy can easily be recovered by preheating undeaerated boiler feed water. Acid circulating in the absorber acid system is generally used for BFW preheating because it is the hottest acid.

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Feb 01, 2017· In the case of the IPL Mount Isa sulphuric acid plant, 2014 presented some very serious challenges associated with maintaining the site’s 16 year old No. 1 Waste Heat Boiler (WHB1). WHB1 is a horizontal tubesheet boiler with 859 tubes, 70mm diameter x 9000mm long. The boiler shell is 3410mm ID and 45mm thick. Process gas from the sulphur burner directly upstream, enters a refractory lined …

An alternative is to place a small bank of tubes at the gas inlet in which the boiler feed water is preheated before entering the primary tube bundle in countercurrent flow to the gas. Gas Dew Point Temperature. If process gas is cooled down far enough, acid will condense from the gas onto the cold surface.

Sulphuric Acid Plant Management and Maintenance Services. We specialise in Acid Plant Management, Maintenance, Inspections, Shutdowns and Repair work. Based in Perth, we work Australia-wide and Internationally. execution of required maintenance, tower inspections, tube cleaning of heat exchangers and boilers, shutdown work. Shane is

Boilers in acid plants are waste heat boilers cooling gases from sulphur furnaces, regeneration furnaces and between catalyst beds. Types of Boilers. There are basically two types of boilers in common use: 1) Firetube 2) Watertube. Firetube Boilers. In firetube boilers the hot gases are confined within tuibes arranged in a bundle within a shell.

Key facts and figures: Scope of work: Supply of 3 water tube waste heat boilers for the Ma‘aden sulphuric acid plant complex (one of the largest sulphuric acid plant complex in the world). Technical features:

File Size: 2MB This report contains a detailed design proc edure of a plant to manufacture Sulfuric acid from. Sulfur, as followed by Group 01 as per the allocations of CH 4202 (Comprehensive Design. Project-09

The sulfuric acid plant heat recovery boiler located in Wengfu, Guizhou, China is cooperative developed by HBG and Kawasaki with the largest capacity of 400000ton/year among all the sulfuric acid plants in China so far, and it reached the international advanced level.

Besides all the processing equipment of sulfuric acid production, the plant has its own utility facility including auxiliary boiler (60 ton/hr of steam), steam turbine generator (15 MW, Siemens), transformers (7 MW each). The plant is equipped with Honeywell DCS.