METHOD AND PLANT FOR VACUUM DISTILLATION OF LIQUID PRODUCT Russian patent published in 1997 - IPC

FIELD: distillation technics; petroleum processing. SUBSTANCE: essence of a part of invention consists in that, as active medium, liquid fraction form vacuum column is fed into jet apparatus, wherein vapor-gas phase is mixed with liquid fraction and compression of vapor-gas phase occurs resulting in transferring its components into liquid state. Mixture from the apparatus is directed into separator, wherefrom, after separation, liquid phase is fed, as circulating reflux, into vacuum column. Novelty regarding a part of plant consists in its being provided with separator, whereas jet apparatus is made as liquid-gas one and is connected with its liquid inlet to pump outlet, with its gas inlet to line serving for withdrawal of vapor-gas phase, and with its outlet to separator, whose liquid outlet communicates circulation reflux line. Invention is chiefly aimed at processing petroleum materials. EFFECT: intensified vacuum distillation process, reduced power consumption and environment pollution. 10 cl, 1 dwg