Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1981-05-07
1982-12-21
Dees, Carl F.
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
44 1SR, 241 2, 241 24, 241 16, C10L 908, C10L 132, C10L 902
Patent
active
043647405
ABSTRACT:
A process is disclosed for treating a fluid-permeable hydrocarbonaceous solid, such as coal, containing an admixture of hydrocarbonaceous components and mineral and sulfur components, to separate the solid into a hydrocarbonaceous enriched fraction and a mineral and sulfur enriched fraction. The process involves comminuting the solid in the presence of a low molecular weight alcohol under conditions sufficient to substantially scission the hydrocarbonaceous components from the mineral and sulfur components and to selectively comminute the hydrocarbonaceous components. The resultant product is thereafter separated into the enriched hydrocarbonaceous fraction and the enriched mineral and sulfur fraction.
In a preferred embodiment of the process, the hydrocarbonaceous solid is mixed with a low molecular weight alcohol, such as methanol, to form a slurry. The slurry is then heated and pressurized to a temperature and pressure above the critical temperature and pressure of the alcohol. In particularly preferred form, the slurry is heated for a sufficient length of time to form: (1) a dissolved portion of the hydrocarbonaceous components in alcohol; (2) an undissolved suspended portion of hydrocarbonaceous material saturated with the alcohol; and (3) a discrete undissolved suspended portion of the mineral components. The superheated slurry is thereafter expanded, preferably by a substantially instantaneous adiabatic expansion, most preferably in the presence of a sulfur scavenger compound. The result is a selective precipitation, comminution and production of substantially mineral and sulfur free, ultra-fine hydrocarbonaceous particles in admixture with discrete relatively larger mineral particles.
REFERENCES:
patent: 2560807 (1951-07-01), Lobo
patent: 3327402 (1967-06-01), Lamb et al.
patent: 3660054 (1972-05-01), Rieve
patent: 3756791 (1973-09-01), Mancke
patent: 4014104 (1977-03-01), Murphy
patent: 4030893 (1977-06-01), Keller
patent: 4192651 (1980-03-01), Keller
H. H Lowry, Chemistry of Coal Utilization, pp. 237-252, (John Wiley & Sons, Inc., 1963).
Huffman, Garner and Parker, "Conversion of Coal with Methanol as Reactant", Coal Processing Technology, vol. 2, pp. 76-82, (AIChE, 1975).
Makabe and Ouchi, "Structural Analysis of NaOH--Alcohol Treated Coals", Fuel, vol. 58, (1/79).
Makabe, Hirano and Ouchi, "Extraction Increase of Coals Treated with Alcohol--Sodium Hydroxide at Elevated Temperatures", Fuel, 1978.
Bartle et al., "Structural Analysis of Supercritical--Gas Extracts of Coals", Fuel, vol. 58, (Jun. 1979).
Mortimer, "Thermal Behaviour of a Supercritical Gas Extract of Coal", Fuel, vol. 58, (Nov. 1980).
Makabe, Fuse and Ouchi, "Effect of the Species of Alkalai on the Reaction of Alcohol--Alkalai--Coal", Fuel, vol. 57, pp. 801-802, (12/78).
"Guide to Coal--Cleaning Methods", Chem. Eg., pp. 47-49, (Jan. 26, 1981).
"A Contribution to the Knowledge of Coal Types", Brennstoff--Chemie, vol. 31, No. 7/8, pp. 103-111, (1950).
Dryden, "Solvent Power for Coals at Room Temperature", Chem. & Ind., pp. 502-508, (Jun. 7, 1952).
Ross and Blessing, "Alcohols as H--Donor Media in Coal Conversion, 1. Base Promoted H--Donation to Coal by Isopropyl Alcohol", Fuel, vol. 58, (Jun. 1979).
Ross and Blessing, "Alcohols as H--Donor Media in Coal Conversion, 2. Base Promoted H--Donation to Coal by Methyl Alcohol", Fuel, vol. 58, (Jun. 1979).
Bartle et al., Aromatic Products of 340.degree. C. Supercritical--Toluene Extraction of Turkish Lignites: An N.M.R. Study, Fuel, vol. 58, (Jun. 1979).
Abel William A.
Brabets Robert I.
Massey Lester G.
CNG Research Company
Dees Carl F.
LandOfFree
Method for removing undesired components from coal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for removing undesired components from coal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removing undesired components from coal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-404612