Melvin J Greaves
Engineers at Ash Ct, Littleton, CO
License number
Colorado 23384
Issued Date
May 24, 1985
Renew Date
Jun 1, 1997
Expiration Date
May 31, 1999
Type
Professional Engineer
Address
Address
7731 S Ash Ct, Littleton, CO 80122
Professional information
Oil Shale Retort Apparatus
US Patent:
4948468, Aug 14, 1990
Filed:
Feb 22, 1989
Appl. No.:
7/313987
Inventors:
Adam A. Reeves - Grand Junction CO
Earl L. Mast - Norman OK
Melvin J. Greaves - Littleton CO
Earl L. Mast - Norman OK
Melvin J. Greaves - Littleton CO
Assignee:
The New Paraho Corporation - Lakewood CO
International Classification:
C10B 104
US Classification:
202 93
Abstract:
A retorting apparatus including a vertical kiln and a plurality of tubes for delivering rock to the top of the kiln and removal of processed rock from the bottom of the kiln so that the rock descends through the kiln as a moving bed. Distributors are provided for delivering gas to the kiln to effect heating of the rock and to disturb the rock particles during their descent. The distributors are constructed and disposed to deliver gas uniformly to the kiln and to withstand and overcome adverse conditions resulting from heat and from the descending rock. The rock delivery tubes are geometrically sized, spaced and positioned so as to deliver the shale uniformly into the kiln and form symmetrically disposed generally vertical paths, or "rock chimneys", through the descending shale which offer least resistance to upward flow of gas. When retorting oil shale, a delineated collection chamber near the top of the kiln collects gas and entrained oil mist rising through the kiln.