JOHN W RICH
Vehicle Board in Brommerstown, PA

4961756, Oct 9, 1990

Dec 1, 1988

7/278676

John W. Rich - Auburn PA

C10L 500, C10L 1100

44605

A continuous fluidized-bed combustion process for particulate carbonaceous feedstock of high ash content. The feedstock fuel is prepared from culm or mine tailings washed in a dense media and crushed to yield a fuel product having an ash content in a range of about 30 percent to about 50 percent, by weight. The feedstock fuel is mixed with fine particles of scavenging material, such as limestone or dolomite, and the resulting feedstock mixture is burned in a circulating fluidized-bed combustion chamber. A portion of the ash remaining after combustion is discharged out the bottom chamber, the remainder being carried with the combustion gases through a hot cyclone and heat exchangers for generating power. The ash within these gases is separated and recirculated through the fluidized bed, and the combustion gases are discharged.

6170770, Jan 9, 2001

Aug 11, 1999

9/372119

John W. Rich - Auburn PA

B02C 1300

241 81

A process and apparatus for coal gasification plant feedstock preparation. A raw feedstock slurry is fed to a hydrocyclone which separates and provides a primary carbonaceous-rich overflow. The primary overflow is further separated by a dewatering screen into a secondary carbonaceous-rich overflow and a media bleed slurry. The secondary overflow is crushed by a crusher and a portion of the media bleed slurry is added to the crushed secondary overflow for subsequent milling and conditioning.

4795037, Jan 3, 1989

May 7, 1986

6/860464

John W. Rich - Auburn PA

B03B 534, B03B 700, C10L 500

209 3

A process particularly suited for producing anthracite coal having an ash content greater than about 20 percent. In the process, an aqueous feedstock slurry composed of raw input and a heavy medium having a magnetic component is subjected to a particular type of cyclonic separating action which produces a coal product having a specific gravity of at least about 1. 9 while the specific gravity of the heavy medium is maintained at least about 0. 4 units below the specific gravity of the coal product. The configuration of the cyclones and composition of heavy medium is such as to enable separation to occur at a relatively high specific gravity with a medium of relatively low specific gravity and viscosity, thereby minimizing magnetite ore losses and energy required to effect separation.

5189964, Mar 2, 1993

Apr 30, 1990

7/516155

John W. Rich - Auburn PA

F23D 100

110347

A continuous fluidized-bed combustion process for particulate carbonaceous feedstock of high ash content. The feedstock fuel is prepared from culm or mine tailings washed in a dense media and crushed to yield a fuel product having an ash content in a range of about 30 percent to about 50 percent, by weight. The feedstock fuel is mixed with fine particles of scavenging material, such as limestone or dolomite, and the resulting feedstock mixture is burned in a circulating fluidized-bed combustion chamber. A portion of the ash remaining after combustion is discharged out the bottom chamber, the remainder being carried with the combustion gases through a hot cyclone and heat exchangers for generating power. The ash within these gases is separated and recirculated through the fluidized bed, and the combustion gases are discharged.

6015104, Jan 18, 2000

Mar 8, 1999

9/264049

John W. Rich - Auburn PA

B02C 2308

241 20

A process and apparatus for coal gasification plant feedstock preparation. A raw feedstock slurry is fed to a hydrocyclone which separates and provides a primary carbonaceous-rich overflow. The primary overflow is further separated by a dewatering screen into a secondary carbonaceous-rich overflow and a media bleed slurry. The secondary overflow is crushed by a crusher and a portion of the media bleed slurry is added to the crushed secondary overflow for subsequent milling and conditioning.