Process for fluid/dense gas extraction under enhanced solubility

Details Process for fluid/dense gas extraction under enhanced solubility Process for fluid/dense gas extraction under enhanced solubility

1999-03-08

2000-08-22

Kim, John

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210656, B01D 1100, B01D 1508

Patent

active

061067202

ABSTRACT:
A liquid/dense gas extraction column process providing intimate contact between a dense gas and a fluid feed containing a solute and operating in an enhanced solubility region provides solubility of a solute in the dense gas to be at least 250% by weight greater than the solubility of the solute in the dense gas at the same operating temperature and 200 bar pressure. The enhanced solubility region for carbon dioxide is a pressure range of between 450 and 1200 bar in combination with a temperature range between 50 and 300.degree. C. The column has a diameter greater than about 3.5 centimeters and a height to diameter ratio greater than about 5.

REFERENCES:
patent: 2420185 (1947-05-01), Messmore
patent: 3477856 (1969-11-01), Schultz
patent: 3969196 (1976-07-01), Zosel
patent: 4246291 (1981-01-01), Prasad et al.
patent: 4250331 (1981-02-01), Shimshick
patent: 4253948 (1981-03-01), Hardman et al.
patent: 4345976 (1982-08-01), Peter et al.
patent: 4349415 (1982-09-01), DeFillippi et al.
patent: 4400559 (1983-08-01), Bhise
patent: 4437938 (1984-03-01), Bhise et al.
patent: 4466923 (1984-08-01), Friedrich
patent: 4493854 (1985-01-01), Friedrich et al.
patent: 4495207 (1985-01-01), Christianson
patent: 4568447 (1986-02-01), Pujado et al.
patent: 4867997 (1989-09-01), Wiesenberger et al.
patent: 4911941 (1990-03-01), Katz et al.
patent: 4956052 (1990-09-01), Hirata et al.
patent: 4996317 (1991-02-01), O'Brien et al.
patent: 5011594 (1991-04-01), Haeffner et al.
patent: 5079025 (1992-01-01), Zobel et al.
patent: 5116508 (1992-05-01), Kumar et al.
patent: 5138075 (1992-08-01), Ohgaki et al.
patent: 5178735 (1993-01-01), Manabe et al.
patent: 5185481 (1993-02-01), Muto et al.
patent: 5284983 (1994-02-01), Muto et al.
patent: 5490884 (1996-02-01), Robinson et al.
R. J. Lahiere et al., "Mass Transfer in Countercurrent Supercritical Extraction", Separation Science and Technology, 22(2&3), pp. 379-393 (1987).
J. Arul et al., "Fractionation of Anhydrous Milk Fat by Superficial Carbon Dioxide", J. Food Science, vol. 52, No. 5, pp. 1231-1236 (1987).
J. Arul et al., "Distribution of Cholesterol in Milk Fat Fractions", J. Dairy Research, 55, pp. 361-371 (1988).
A. R. Bhaskar et al., "Anhydrous Milk Fat Fractionation with Continuous Countercurrent Supercritical Carbon Dioxide", J. Food Science, vol. 58, No. 4, pp. 748-752 (1993).
R. L. Bradley, Jr., "Removal of Cholesterol from Milk Fat Using Supercritical Carbon Dioxide", J. Dairy Science, 72, pp. 2834-2840 (1989).
G. Brunner et al., Separation of Tocopherols from Deodorizer Condensates by Countercurrent Extraction with Carbon Dioxide, J. Supercritical Fluids, 4, pp. 72-80 (1991).
P. J. Carmelo et al., "Modeling of Mass Transfer in Supercritical Countercurrent Extraction Columns: Application to Olive Oils", Chem. Biochem. Eng., Q. 8 (1), pp. 5-9 (1994).
M. Jakobsson et al., "Counter-Current Extraction of Dioxins from Cod Liver Oil by Supercritical Carbon Dioxide", J. Supercritical Fluids, 7 (3), pp. 197-200 (1994).
C. T. Lira, "Physical Chemistry of Supercritical Fluids, A Tutorial, SFE and Chromatography", ACS Series 366, pp. 1-25 (1988).
R. T. Marentis et al., "Design Considerations for Process Development Units Used for Investigating Commercial Scale-Up of SFE Processes"; Presentation at the 1993 Annual Meeting of the American Institute of Chemical Engineers, St. Louis, MO (1993).
R. T. Marentis et al., "Developing a Commercial-Scale SFE Food Process Utilizing a Process Development Unit", Proceedings of the 3rd International Symposium on Supercritical Fluids (1994).
A. Shishikura et al., "Modification of Butter Oil by Extraction with Supercritical Carbon Dioxide", Agric. Biol. Chem., 50 (5), pp. 1209-1215 (1986).
P. C. Simoes et al., "Mass Transfer in Supercritical Countercurrent Extraction Columns: Application to Natural Oils", High Pressure and Biotechnology, Eds. C. Balny, R. Hayashi, K. Heremans and P. Masson. Colioque INSERT/John Libbey Eurotext Ltd., 224, pp. 457-459 (1992).
Stahl et al., Dense Gases for Extraction and Refining, Springer-Verlag, pp. 82-94 (1987).
E. Kruger, "The use of CO.sub.2 in the manufacture of hop products" (1980).

Affiliated with

Also associated with

Rating

Process for fluid/dense gas extraction under enhanced solubility does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for fluid/dense gas extraction under enhanced solubility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for fluid/dense gas extraction under enhanced solubility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-576719