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Steam pipe

Concentrate each of the two solutions (or eluates) to about 20 ml, by distilling off the greater part of the benzene, the distilling-flask being immersed in the boiling water-bath. Then pour the concentrated solution into an evaporating-basin, and evaporate the remaining benzene (preferably in a fume-cupboard) in the absence of free flames, i.e., on an electrically heated water-bath, or on a steam-bath directly connected to a steam-pipe. Wash the dry residue from the first eluate with petrol and then dry it in a desiccator pure o-nitroaniline, m.p. 72°, is obtained. Wash the second residue similarly with a small quantity of benzene and dry pure />--nitroaniline, m.p. 148" , is obtained. Record the yield and m.p. of each component. [Pg.50]

Miscellaneous, eg, ovens, exposed steam pipes, use of exhaust hoods Temperature of product entering space... [Pg.360]

The low autoignition temperature of benzaldehyde (192°C) presents safety problems since benzaldehyde can be ignited by exposure to low pressure steam piping, for example. Benzaldehyde may also spontaneously ignite when soaked into rags or clothing or adsorbed onto activated carbon (13). [Pg.35]

There are many reasons for significant investment in FCC power trains and, thus, power train maintenance. These power recovery machines handle catalyst-laden gas at high temperature. Because the recovery system is connected to the processing plant, the steam pipe network and the electrical power grid, a power train upset is likely to rapidly extend from the FCC unit to the entire plant. [Pg.464]

Sizing Steam Piping in New Plants Maximum Allowable Flow and Pressure Drop... [Pg.5]

Suggested Steam Pipe Velocities in Pipe Connecting to Steam Turbines... [Pg.7]

Incandescent particles from incinerators, flarestacks, chimneys Vehicle exhaust Steam pipes... [Pg.182]

Dampf-kanal, m. steam pipe steam port, -kasten, m. steam box, steam chest steaming chamber. [Pg.97]

Energy can almost always be replaced in part by other inputs. For example, a steam pipe can be insulated more heavily or an industrial process can be modified to use more labor and less energy. Economic efficiency docs not imply minimizing the use of energy or any other input, but rather finding the appropriate mix of inputs. The economically efficient level of inputs is reached when the last dollar spent on energy yields the same amount of benefits as the last dollar spent on labor or materials or any other input. [Pg.357]

Steam pipes may be sized so that the pressure drop along them is within an acceptable limit, or so that velocities along them are not too high. It is convenient and quick to size shorter mains and branch lines on a velocity basis, but the pressure drops along longer runs should also be checked to verify that sufficient pressure is available at the delivery points. [Pg.316]

A fire, followed by an explosion at Huddersfield in 1900 was also caused by detonation of iron picrate (presumably Fe++). The iron picrate had been formed on the surface of steam pipes located in the Picric Acid drier shop. It ignited when a plumber, unaware of the fact, struck one of the pipes with a hammer. The flame spread along the pipe and set the drying Picric Acid on fire... [Pg.771]

Condensation occurs constantly in steam pipes, and steam traps are installed to separate the steam from the condensate. In long steam-pipe runs most of the carbon dioxide remains in the steam phase, although if only a single neutralizing amine with a low DR is used, much of the amine will be present in the condensate. The result is that the amine feed quickly becomes depleted, and further down the steam/condensate pipe the pH level becomes progressively lower. [Pg.516]


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See also in sourсe #XX -- [ Pg.51 ]




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