US 7,588,666 B2
Compact rectifying unit for separation of mixed fluids and rectifying process for separation of such mixed fluids
Albert Faritovich Saifutdinov, Novosibirsk (Russian Federation); Oleg Yegorovich Beketov, Novosibirsk (Russian Federation); Viktor Seliverstovich Ladoshkin, Novosibirsk (Russian Federation); Guennadi Anatolievich Nesterov, Brooklyn, N.Y. (US); Anatoly Semenovich Tlousty, Novosibirsk (Russian Federation); and Guennady Ivanovich Ivanov, Angarsk (Russian Federation)
Assigned to A. Saifutdinov, (Russian Federation); O. Beketov, (Russian Federation); V. Lasoshkin, (Russian Federation); and G. Nesterov, Brooklyn, N.Y. (US)
Appl. No. 10/508,265
PCT Filed Mar. 20, 2002, PCT No. PCT/RU02/00106
§ 371(c)(1), (2), (4) Date Sep. 17, 2004,
PCT Pub. No. WO03/078014, PCT Pub. Date Sep. 25, 2003.
Prior Publication US 2005/0224333 A1, Oct. 13, 2005
Int. Cl. B01D 1/06 (2006.01); B01D 3/04 (2006.01); F28F 1/00 (2006.01); F28F 13/14 (2006.01)
U.S. Cl. 203—1  [138/38; 165/177; 159/27.1; 159/27.3; 159/44; 159/47.1; 202/160; 202/237; 203/100] 34 Claims
OG exemplary drawing
 
1. A compact rectifying unit for separation of a mixed fluid, said compact rectifying unit comprising a rectifying tower or column comprising:
a) an outer shell;
b) means for a vapour phase output from the top of the tower or column;
c) means for a fluid phase output from the bottom of the tower or column;
d) tube gratings or plates, between which at least one heat and mass exchange tube of the tower or column is fixed, said tube gratings or plates keeping said heat and mass exchange tube(s) inside of said outer shell;
e) means for evaporating said mixed fluid, said evaporating means comprising means for heating said mixed fluid; wherein:
an internal space of said heat and mass exchange tube(s) is in fluid connection with said evaporator means;
said tube gratings or plates, said heat and mass exchange tubes(s) and said outer shell define a tubular annulus between said outer shell and said heat and mass exchange tubes(s);
the tubular annulus is filled by a fluid heat carrier and its vapours and is connected to a return condensator and to a means for warming said fluid heat carrier;
said rectifying tower or column further comprising means for providing irregular amounts of heat transfer between an inside and an outside of a tube wall along a height of said heat and mass exchange tube(s) between the inside and the outside of said tube wall.