DANIEL W KESTNER JR
Engineers in Moon Twp, PA
License number
Pennsylvania PE020723E
Category
Engineers
Type
Professional Engineer
Address
Address
Moon Twp, PA 15108
Professional information
Method Of And Apparatus For Processing Of Oil Shale
US Patent:
4425220, Jan 10, 1984
Filed:
Feb 8, 1982
Appl. No.:
6/346522
Inventors:
Daniel W. Kestner - Coraopolis PA
Assignee:
Dravo Corporation - Pittsburgh PA
International Classification:
C10B 5306
US Classification:
208 11R
Abstract:
In the indirect method of retorting oil shale highly heated gases produced out of contact with flames in a heat exchanger are introduced into the retort and release oil vapor and high-value, high BTU gas and oil vapor from the shale which mix with the hot gas so introduced into the retort. Instead of burning the heat value gas of pipeline quality in the heat exchanger which is the present procedure, this invention fires the heat exchanger with abundant, cheap, low-value gas which for example is produced underground in-situ at or near the retort, thereby preserving the high value gas, after condensation of the oil vapor, partially for recirculation through the heat exchanger and retort and for in-plant operations, such a hydrogenation of the extract shale oil to produce refinable crude or for pipeline use.
Process For Stabilizing Aqueous Coal Sludges
US Patent:
4015997, Apr 5, 1977
Filed:
Jul 22, 1975
Appl. No.:
5/598117
Inventors:
Joseph G. Selmeczi - Pittsburgh PA
Donald H. Marlin - Pittsburgh PA
Daniel W. Kestner - Coraopolis PA
Donald H. Marlin - Pittsburgh PA
Daniel W. Kestner - Coraopolis PA
Assignee:
Dravo Corporation - Pittsburgh PA
International Classification:
C08K 1100
US Classification:
106287R
Abstract:
The solids content of aqueous coal sludge slurries such as coal washings are stabilized in a hardened state by concentrating the solids content thereof, adding to the concentrated coal sludge 2-50% by weight of the solids of granulated blast furnace slag, with intimate mixing, and maintaining the mixture in a quiescent state and in the presence of excess water to produce a sedentary mass having load supportive properties suitable as landfill.
Fine Particulate Removal From Oil Shale On A Travelling Grate Retort
US Patent:
4381988, May 3, 1983
Filed:
Jul 20, 1981
Appl. No.:
6/285060
Inventors:
Daniel W. Kestner - Coraopolis PA
Frank Forbes - Lakewood CO
Frank Forbes - Lakewood CO
Assignee:
Dravo Corporation - Pittsburgh PA
International Classification:
C10G 100, C10B 4906, C10B 5306
US Classification:
208 11R
Abstract:
In a process for the removal of fines from a bed of oil bearing shale in a travelling grate retort, a fluid such as air, inert gas or process gas is drafted through the bed in order to entrain in the fluid substantially all of the fines in the bed. The fines are then evacuated from the bed thus increasing the permeability of the bed and substantially decreasing the fines in the retorted shale oil.