Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Reexamination Certificate
2006-10-17
2006-10-17
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
C502S060000, C502S064000, C502S071000, C502S077000
Reexamination Certificate
active
07122496
ABSTRACT:
Adsorbent compositions for vapor-phase adsorption processes, which are selective for para-xylene. Such compositions can be used in gas-phase adsorption processes for the separation of para-xylene or the separation of para-xylene and ethylbenzene from mixed xylenes or a C8aromatic mixture, respectively. The adsorbent compositions generally comprise materials of a molecular sieve material and a binder, wherein the adsorbent composition has a macropore volume of at least about 0.20 cc/g and a mesopore volume of less than about 0.20 cc/g.
REFERENCES:
patent: 2985589 (1961-05-01), Broughton et al.
patent: 3201491 (1965-08-01), Stine et al.
patent: 3626020 (1971-12-01), Neuzil
patent: 3696107 (1972-10-01), Neuzil
patent: 3699182 (1972-10-01), Cattanach
patent: 3700589 (1972-10-01), Symoniak et al.
patent: 3702886 (1972-11-01), Argauer et al.
patent: 3729523 (1973-04-01), Grandio, Jr. et al.
patent: 3790471 (1974-02-01), Argauer et al.
patent: 3960520 (1976-06-01), Allen
patent: 4039599 (1977-08-01), Gewartowski
patent: 4098836 (1978-07-01), Dywer
patent: 4176053 (1979-11-01), Holcombe
patent: 4184943 (1980-01-01), Anderson
patent: 4210771 (1980-07-01), Holcombe
patent: 4372022 (1983-02-01), Puckett
patent: 4374022 (1983-02-01), Fuderer
patent: 4381419 (1983-04-01), Wylie
patent: 4402832 (1983-09-01), Gerhold
patent: 4476345 (1984-10-01), Gray, Jr. et al.
patent: RE31782 (1984-12-01), Olson et al.
patent: 4508841 (1985-04-01), Onuma et al.
patent: 4582815 (1986-04-01), Bowes
patent: 4595490 (1986-06-01), Gray, Jr. et al.
patent: 4705909 (1987-11-01), Yan
patent: 4709117 (1987-11-01), Gray, Jr.
patent: 4760040 (1988-07-01), Sato et al.
patent: 4857084 (1989-08-01), Robbins et al.
patent: 4899011 (1990-02-01), Chu et al.
patent: 4908342 (1990-03-01), McWilliams et al.
patent: 5011296 (1991-04-01), Bartosiak et al.
patent: 5028573 (1991-07-01), Brown et al.
patent: 5118896 (1992-06-01), Steigelmann et al.
patent: 5202516 (1993-04-01), Lee et al.
patent: 5329060 (1994-07-01), Swift
patent: 5367099 (1994-11-01), Beck et al.
patent: 5367100 (1994-11-01), Gongwei et al.
patent: 5448005 (1995-09-01), Eccli et al.
patent: 5460796 (1995-10-01), Verduijn
patent: 5506182 (1996-04-01), Yamagishi et al.
patent: 5516956 (1996-05-01), Abichandani et al.
patent: 5614079 (1997-03-01), Farnos et al.
patent: 5849258 (1998-12-01), Lujano et al.
patent: 5866740 (1999-02-01), Mikitenko et al.
patent: 5908967 (1999-06-01), Benazzi et al.
patent: 6040257 (2000-03-01), Drake et al.
patent: 6084143 (2000-07-01), Girotti et al.
patent: 6111161 (2000-08-01), MacPherson et al.
patent: 6114592 (2000-09-01), Gajda et al.
patent: 6147272 (2000-11-01), Mikitenko et al.
patent: 6150292 (2000-11-01), Merlen et al.
patent: 6150293 (2000-11-01), Verduijn et al.
patent: 6171370 (2001-01-01), Hirano et al.
patent: 6183539 (2001-02-01), Rode et al.
patent: 6569400 (2003-05-01), Sterte et al.
patent: 6723862 (2004-04-01), Shuguang et al.
patent: 2002/0013216 (2002-01-01), Broekhoven et al.
patent: 2002/0065444 (2002-05-01), Deckman et al.
patent: 2002/0068844 (2002-06-01), Williams et al.
patent: 2002/0077519 (2002-06-01), Miller et al.
patent: 2002/0099251 (2002-07-01), Doyle et al.
patent: 2002/0107427 (2002-08-01), Doyle et al.
patent: 1105906 (1995-08-01), None
patent: 1136549 (1996-11-01), None
patent: D 138 617 (1985-04-01), None
patent: 1 334 243 (1973-10-01), None
patent: 1 420 796 (1976-01-01), None
patent: WO 93/17987 (1993-09-01), None
patent: WO 96/22262 (1996-07-01), None
patent: WO 00/69796 (2000-11-01), None
patent: WO 01/62691 (2001-08-01), None
patent: WO 02/04391 (2002-01-01), None
T. Boger et al., “The Selective Separation of P-and M-Xylol Over Zeolitic Adsorbents, In The Gas Phase,” Chem. Ing. Tech. 69:475-480 (1997).
Choudary et al., “Single-Component Sorption/Diffusion of Cyclic Compounds from Their Bulk Liquid Phase in H-ZSM-5 Zeolite,” Ind. Eng. Chem. Res., 36:1812-1818 (1997).
Flanigen et al., “Silicalite, a new hydrophobic crystalline silica molecular sieve,” Nature, 271:512-516 (1978).
Meier et al., “Atlas of Zeolite Framework Types,” Fifth Revised Edition, International Zeolite Association (2001).
Murakami et al., eds., “Hydrocarbon Adsorption Characterization of Some High Silica Zeolites,” New Developments in Zeolite Science and Technology, Proceedings of the 7th International Zeolite Conference, Aug. 17-22, 1986, pp. 547-554.
Namba et al., “Novel purification method of commercial o- and m-xylenes by shape selective adsorptionon HZSM-5,” Microporous Materials, 8:39-42 (1997).
Pezolt et al., “Pressure Swing Adsorption for VOC Recovery at Gasoline Loading Terminals,” Environmental Progress, 16:16 (1997).
Sherman, “Synthetic zeolites and other microporous oxide molecular sieves,” Proc. Nat'l. Acad. Sci., USA, 96:3471-3478 (1999).
Yan, “Separation of p-Xylene and Ethylbenzene from C8 Aromatics Using Medium-Pore Zeolites,” Inc. Eng. Chem. Res., 28:572-576 (1989).
Yang, “Pressure-Swing Adsorption: Principles and Processes,” Gas Separation by Adsorption Process, Butterworth Publishers, Boston, Table of Contents and pp. 237-274 (1987).
ASTM International, “D4926-89(2001) Standard Test Method for Gamma Alumina Content in Catalysts,” www.astm.org/cgi-bin/SoftCart.exe, no date.
Quantachrome Instruments, “Mercury Porosimeters—Principle of Operation,” www.quantachrome.com/Mercury/Porosimeter-Theory.htm (1999).
Catapal™ Alumina, Material Safety Data Sheet, (SASOL North America Inc.) (2001).
Alcoa, Material Safety Data Sheet, “Pseudoboehmite and Boehmite Alumina,” (2002).
Bulletin, “ISOMAR™ Process,” UOP LLC (1999).
Bulletin, “Parex™ Process,” UOP LLC (1999).
Doyle Ruth Ann
Miller Jeffrey T.
Williams Bryce A.
BP Corporation North America Inc.
Wood Elizabeth D.
Yassen Thomas A.
LandOfFree
Para-xylene selective adsorbent compositions and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Para-xylene selective adsorbent compositions and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Para-xylene selective adsorbent compositions and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3716422