Particles with short residence times in a calciner will generally be less oxidized than those with long retention times or particles recovered in the stack scrubber.
12.
Other features in the area include Brunton's arsenic calciner, Tehidy Holiday Park, Tricky's Hotel, Tolgus Cottage and Dalgover House.
13.
A "'multiple hearth furnace "'also known as a vertical calciner, is used for continuous preparation and calcining of materials.
14.
The highly concentrated CO2 from the calciner is suitable for sequestration, and the spent CaO has potential uses elsewhere, most notably in the cement industry.
15.
By replacing the calciner in the cement plant with a calcium looping plant, it should be possible to capture 90 % or more of the CO 2 relatively inexpensively.
16.
Since the exothermic reaction happens at about 650 �C and the endothermic reaction at 850-950 �C, the heat from the carbonator cannot be directly used to heat the calciner.
17.
The ultimate development is the " air-separate " precalciner, in which the hot combustion air for the calciner arrives in a duct directly from the cooler, bypassing the kiln.
18.
In 1915 a calciner was erected, together with " another " Wilfley concentrating table and a 5 ft Berdan crushing pan, and a new shaft was sunk on the tin deposit.
19.
The surviving structures were all listed as Grade II buildings on 31 October 1988 : The Stamps House, the chimney east of the New Whim engine house, the Old Whim and New Whim engine houses, and the calciner.
20.
The heat required for the endothermic calcination of CaCO 3 and the heat required to raise the temperature of fresh limestone from ambient temperature, can be provided by in-situ oxy-fired combustion of fuel in the calciner.
