Waste-Heat Boiler

waste-heat boiler

[′wāst ¦hēt ′bȯi·lər]
(chemical engineering)
A heat-retrieval unit using hot by-product gas or oil from chemical processes; used to produce steam in a boiler-type system. Also known as gas-tube boiler.

Waste-Heat Boiler


a boiler without its own firebox, which uses the heat of waste gases from industrial or power equipment. The temperature of gases entering a waste-heat boiler is 350°-400°C (in the case of a boiler installed behind an internal-combustion engine) to 900°−1500°C (if it is installed behind a reverberatory or refining furnace or a cement kiln). Large waste-heat boilers are equipped with all components of a boiler unit, with the exception of the firebox and other equipment associated with fuel combustion. For low outputs and pressures, waste-heat boilers with gas tubes are used; they may have multiple forced circulation or, less frequently, natural circulation and a direct-flow separator or drum design. Waste-heat boilers for heating water are usually called utilization economizers or pre-heaters. In some cases waste-heat boilers are integrated with other components of technical equipment to such a degree that they are no longer a separate unit (for example, evaporative cooling equipment for open-hearth furnaces and chemical installations). Waste-heat boilers are widely used in the chemical, petroleum, food, and textile industries.


Kotly-utilizatory martenovskikh pechei. Moscow, 1957.
Kotly-utilizatory i energo-tekhnologicheskie agregaty: Katalog-spravochnik. Moscow, 1969.


References in periodicals archive ?
The lifting operation is part of the modernization of converter 2 and waste-heat boiler system in the Duisburg Bruckhausen steelmaking plant, which is one of the biggest in Europe.
The latest modernization involves 2 units: the converter and the waste-heat boiler.
There are several reasons including the high cost of a suitable gas turbine liquid fuel; the premium on engine-room space for a HRSG waste-heat boiler which must be contained below water level; and the lack of trained operators, given the decline in marine steam turbine drive for cargo or passenger ships.
It has set up a new manufacturing unit in Kandla (Gujarat) for manufacturing high-pressure vessels, heat exchangers, and waste-heat boiler systems; this unit commenced operations in November 2010.
The generators are coupled to a 700-horsepower waste-heat boiler to capture heat from combustion gases.
of combustible compounds and a surplus of sensible heat in the gas make it possible to include a waste-heat boiler into the complex of UTT-3000 retort, including afterburning of stack gas, prior to introducing the gases into AFD.
Roaster offgas will be vented to a waste-heat boiler, cooled to 710 |degrees~ F, and passed through an electrostatic precipitator for removal of particulates.
The off-gas will be cooled in a waste-heat boiler and cleaned by electrostatic precipitation.
Reconstruction of the existing CHP in Gomel using steam and gas technologies (installation of a new 25 MW gas turbine, waste-heat boiler and additional 4MW steam turbine).
The Canary Islands combined-cycle plant will have installed capacity of 230 MW through two gas turbines and their corresponding waste-heat boilers and one steam turbine.
The so-called group 5, inaugurated today, will increase capacity from 320 MW to 800 MW and is made up of two gas turbines with two waste-heat boilers connected to the existing steam turbine.