Rapid waste heat boiler retubing at IPL Mount Isa sulphuric acid plant. Effective energy recovery in sulphuric acid plants can drive the economics of the enters the tubes at 951°C, producing 2400 kPa(g) steam in the boiler shell. Ask Price ; heat recovery in sulfur,sulfuric acid plants
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.
The main circulation modes of water in boiler are natural circulation and forced circulation. according to the fact that the flue gas of sulfuric acid making is characterize by high side positive pressure and low dust content, the sulfuric acid making mainly adopts fire-tube type, which has features such as good flue gas sealing property
Oct 23, 2017· Boilers may be acid cleaned to remove original mill scale remining in a new boiler or two remove scale sludge, or corrosion products in a boiler that has been in service. Acid may react with the
Boilers for Waste Heat Recovery Systems are critical to the cost efficient operation of sulfuric acid plants.Optimus knows and understands how the Boiler must integrate with the Plant's sulfur burner and utilizes specific design features developed for acid plant operating conditions.
AVU Engineers has been supplying w aste heat recovery systems for Sulphuric acid plants since 1983 and have supplied more than 135 customers. AVU Engineers design and supply a full range of equipment including water/firetube boilers , e conomizer s, s uperheater s , s team d rum, and auxiliaries
Water tube boilers are generally natural circulation boilers. The inlet vestibule will be refractory lined if the source of gas is a sulphur or regeneration furnace. In addition, the front of the boiler will be offset or located at right angles to the furnace to prevent direct radiation from the furnace flame on the tube bank.
Condensation of these acids results in metal wastage and boiler tube failure, air preheater corrosion, and flue gas duct corrosion. In order to avoid or reduce the cold end corrosion the gas temperature leaving the heat transfer surface in boiler is kept around 150 degrees centigrade, ranging from 120 to 155.
Fire Tube Boiler Water Tube Boilers -External & INternal bypass : Economisers-Finned Tube, Gilled Tube, Finned/Gilled Tube : Superheaters Sulphuric Acid production based on Sulphur combustion is an exothermic reaction generating a considerable amount of heat which can be recovered of heat which can be recovered as high-pressure steam which
6 Soot Deposits and Fires in Exhaust gas Boilers quality and the above highly efficient and perhaps “overstretched” design, it also seemed that the tendency to fouling, i.e. soot deposits on the ex haust gas boiler tubes, had increased and, in some cases, had resulted in soot fires. In extreme cases, the soot
Package Boiler. Packaged boiler is the most common and efficient type of fire tube boiler used in industry to produce steam and hot water. This boiler delivers to site as a whole package factory assembled. The package boiler only requires electricity, water, steam and fuel connections and it …
Jul 13, 2015· sulfuric acid waste heat boiler plants 1800-1900 F and at a pressure of about 2 psig enter a waste heat boiler and the gas is cooled to about 750-800 F.The boiler could be of fire tube or water tube design,depending on the gas flow and economics.High pressure saturated or superheated steam is generated.The exit gas temperature is controlled
In Lees' Loss Prevention in the Process Industries (Fourth Edition), 2012. 12.8.4 Waste Heat Boilers. 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.
May 21, 2012· So it passes from a drying tower, usually with counter current sulfuric acid (96-98%). 2. Assuming a water tube boiler, an understanding of heat exchange in radiant and convection section can be found in "Petroleum Refinery Engineering" by W. L. Nelson, 4th edition, McGrawHill 1958, Chapter 18.
Sulphuric Acid Plant. In sulphuric acid plants the WHB is designed to handle gas-side operating pressures as high as 5,000 mmWC, which calls for special construction of economiser and superheater. The steam generated by the boiler is used for melting sulphur and driving the main air blower. The steam can also be used for power generation.
Sulphuric acid process Waste Heat Boiler G161 is a fire tube type of single pass design with water / steam drum and natural circulation. Boiler tube bundle is installed horizontally. Unit constituted of a furnace and a waste heat boiler is supported by one fixed and one sliding saddle.
2018-4-6 · into boiler feed water Steam generating boilers are com-monly used in sulfuric acid plants, for process gas cooling, waste heat recovery and steam usage at various locations. The steam—typically in the 450 to 900 psig range—drives turbines, and upon pres-sure reduction meets other heating needs in …
It can be concluded that the reduction of the boiler tube thickness due to sulfuric acid dew point corrosion was the major cause of the water leakage from the boiler tubes. 3.3. Exposure test in the waste heat boiler. It was concluded from examination that the major cause of the boiler tube failure was sulfuric acid dew point corrosion.