DE374022C - Process and apparatus for separating and purifying liquid bodies from hot gas mixtures - Google Patents

Description

Process and apparatus for the separation and purification of liquids Bodies made of hot gas mixtures.

To make certain bodies, soluble and insoluble in water, out of one to gain hot gas mixture, the entire gas mixture was previously cooled to such an extent that that these bodies condensed and could be discharged separately from the gases. In this process, a large number of thermal units are uselessly removed. These have to be reused during purification, distillation and rectification Liquid mixtures are fed.

With the present invention, this heat is no longer uselessly dissipated, but rather directly to the distillation and rectification of the previously from the hot Gases of condensed liquid bodies are used. For this purpose the hot gas mixture introduced into a cylindrical body A, which with any Heat exchange surface (evaporation tray, coil or pipes) is provided. In the same the liquid that has condensed in body A as a result of the extraction of heat from the gas mixture trickles Body with its impurities in fine distribution. Because that's the heating surface surrounding gas mixture is hotter than the liquid trickling down inside, so lively heat exchange occurs. being by far the largest part of the liquid Body evaporates and only the heavily boiling part settles as residue on the bottom of the heat exchanger accumulates and is drained at a. The vaporous body passes through the connecting pipe b to the attached rectifying column B, which is exposed with suitable filling material. The vapors rising in it are cleaned by deflegmation and partially liquefied.

During the flow in vapor form from the top of the column to the condenser C removes, the liquid body cleaned in this way accumulates on the unperforated floor at d and is drained through tube c.

When the liquid body evaporates, the The amount of heat required for this is withdrawn from the hot gases flowing around the heating surface, which in turn results in the heavily boiling body contained in the hot steam mixture is brought to failure, accumulates on the floor at e and finally through the Tube f is brought to drain.

Should, for example, three liquid bodies from a hot gas mixture are obtained, so are three such heat exchangers one behind the other switch that the dispensed liquid body for cleaning the upstream Heat exchanger can flow freely, so that no operation of the apparatus Pump is required.

Claims (3)

PATENT CLAIMS: 1. Process for separating liquid bodies from hot gas mixtures by extracting heat while using them at the same time Heat for rectifying the separated body, characterized in that the liquid body in the interior of a pipe wall or evaporation dish 0. the like for evaporation is brought through the hot gas mixture flushing around the wall, and at the same time a cooling of this gas mixture takes place and thereby the contained therein in vapor form condense heavily boiling bodies. 2. Apparatus according to claim I, characterized in that an upright Heat exchanger is connected directly to a rectifying column in such a way that it is readily possible to recover the liquid body obtained according to claim I evaporate down to the residue and decompose the resulting vapor mixture in flow and purified liquid body, which are then drained separately will. 3. Apparatus according to claim I and 2, characterized in that a number of different bodies can be obtained from a hot gas mixture by Series connection of a number of such heat exchangers with an attached cleaning column in such a way that the liquid bodies to be obtained can be completely grasped. The headers and unfinished bodies are directly attached to the associated heat exchangers supplied without any pump performance, which should not, however, exclude that possibly also by means of a pump, the foreruns and impure bodies after the associated heat exchangers can be promoted.