Cellular coal products

Details Cellular coal products Cellular coal products

2005-06-02

2011-11-01

Sample, David (Department: 1783)

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

Reexamination Certificate

active

08048528

ABSTRACT:
According to the present invention there is provided coal-based cellular or porous products, also referred to herein as “carbon foams”, having a density of preferably between about 0.1 g/cm3and about 0.8 g/cm3and most preferably between about 0.3 and about 0.4 g/cm3that are produced by the controlled heating of coal particulate preferably up to ¼ inch in diameter in a “mold” and under a non-oxidizing atmosphere. The coal-based cellular or porous products of the present invention have ash contents typically greater than about 1%. More typically these coal-based cellular or porous products have ash contents greater than about 3%, with ash contents in the range of about 7% to 15% being most typical. The ash residue remaining after essentially complete combustion/oxidation of these coal-based cellular or porous products is predominately composed of oxides of aluminum and silicon. Additionally, the cellular coal-based products of the present invention have relatively low overall B.E.T. surface areas. Such surface areas are typically less than about 5 m2/g and are commonly in the range of about 1 m2/g to about 2 m2/g.

REFERENCES:
patent: 3018227 (1962-01-01), Baum et al.
patent: 3111396 (1963-11-01), Ball
patent: 3185635 (1965-05-01), Creglow
patent: 3302999 (1967-02-01), Mitchell
patent: 3309437 (1967-03-01), Harnett
patent: 3754876 (1973-08-01), Pennington et al.
patent: 4127391 (1978-11-01), Koppelman
patent: 4128401 (1978-12-01), Powell et al.
patent: 4432773 (1984-02-01), Euker et al.
patent: 4475924 (1984-10-01), Meyer
patent: 4632731 (1986-12-01), Bodle et al.
patent: 4668244 (1987-05-01), Nakamura et al.
patent: 4849021 (1989-07-01), Nakai et al.
patent: 5302634 (1994-04-01), Mushovic
patent: 5705139 (1998-01-01), Stiller et al.
patent: 5888469 (1999-03-01), Stiller et al.
patent: 6024899 (2000-02-01), Peng et al.
patent: 6033506 (2000-03-01), Klett
patent: 6183854 (2001-02-01), Stiller et al.
patent: 6241957 (2001-06-01), Stiller et al.
patent: 6346226 (2002-02-01), Stiller et al.
patent: 6506354 (2003-01-01), Stiller et al.
patent: 6544491 (2003-04-01), Stiller et al.
patent: 6749652 (2004-06-01), Rogers
patent: 6797251 (2004-09-01), Bennett et al.
patent: 6814765 (2004-11-01), Rogers
patent: 6899970 (2005-05-01), Rogers et al.
patent: 2003/0070350 (2003-04-01), Rogers et al.
patent: 2004/0079628 (2004-04-01), Eatough et al.
patent: 2004/0177549 (2004-09-01), Rogers
patent: 2004/0180187 (2004-09-01), Rogers
patent: 2004/0228789 (2004-11-01), Stiller et al.
patent: 1489690 (1977-10-01), None
patent: 61270205 (1986-11-01), None
patent: 08112876 (1996-05-01), None
patent: WO 02/18272 (2002-03-01), None
Blaschke (Clean coal-preparation barriers in Poland; Applied Energy 74 (2003) 343-348).
Kirk-Othmer, Encyclopedia of Chemical Technology, 4th Edition, 1993, pp. 454-455, vol. 6, John Wiley & Sons, Inc. NY.
Ullmanns Enzyklopadie Der Technischen Chemie, “Kohle, Schwelung und Verkokung von Braunkohle”, 1977, pp. 496-496, Table 4, vol. 14, Weiheim (DE), XP002390463.
McGraw-Hill Encyclopedia of Science and Technology, “Coke”, 1994, pp. 121-123, vol. 4, McGraw-Hill, New York (USA), XP002390545.
Kiser and Wombles, Developing Coal Tar/Petroleum Pitches, power point presentation, date unknown, from www.koppers.com/docs/White—Papers/KOPHTC—TMS00—DEV—PETROL. ppt.

Affiliated with

Also associated with

Rating

Cellular coal products does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cellular coal products, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellular coal products will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4257123