EP 0061111 A3 19840718 - METHOD FOR THE UNDERGROUND GASIFICATION OF SOLID COMBUSTIBLE MATERIALS

Title (en)

METHOD FOR THE UNDERGROUND GASIFICATION OF SOLID COMBUSTIBLE MATERIALS

Publication

EP 0061111 A3 19840718 (DE)

Application

EP 82102053 A 19820313

Priority

DE 3111137 A 19810321

Abstract (en)

[origin: US4446921A] Method for the underground gasification of solid fuels in which an underground fuel deposit is initially opened up and then converted into a gaseous fuel by means of a gasification medium. The opening of the fuel deposit is effected by treatment with a gas which is in the supercritical state, which takes on the volatile organic substances of the solid fuel and the water contained in the solid fuel. The dissolved organic compounds and the water are separated from the charged supercritical gas phase above ground in at least two fractions by pressure reduction and/or a change in temperature.

IPC 1-7

E21B 43/24; E21B 43/40; C10J 5/00

IPC 8 full level

E21B 43/28 (2006.01); E21B 43/16 (2006.01); E21B 43/18 (2006.01); E21B 43/24 (2006.01); E21B 43/243 (2006.01); E21B 43/40 (2006.01); E21C 41/24 (2006.01)

CPC (source: EP US)

E21B 43/164 (2013.01 - EP US); E21B 43/168 (2013.01 - EP US); E21B 43/18 (2013.01 - EP US); E21B 43/24 (2013.01 - EP US); E21B 43/243 (2013.01 - EP US)

Citation (search report)

[Y] DE 1267185 B 19680502 - EQUITY OIL COMPANY
[YD] DE 1493190 A1 19690918 - STUDIENGESELLSCHAFT KOHLE MBH
[A] US 3474863 A 19691028 - DEANS HARRY A, et al
[A] US 4108760 A 19780822 - WILLIAMS DEREK FARNHAM, et al
[A] DE 819386 C 19511031 - OIL RECOVERY CORP
[A] US 4043395 A 19770823 - EVERY RICHARD L, et al
[A] DE 1245290 B 19670727 - EQUITY OIL COMPANY

Designated contracting state (EPC)

BE FR GB LU NL

DOCDB simple family (publication)

EP 0061111 A2 19820929; EP 0061111 A3 19840718; EP 0061111 B1 19870520; AU 552221 B2 19860522; AU 8075282 A 19820930; CA 1170977 A 19840717; CS 247065 B2 19861113; DD 202447 A5 19830914; DE 3111137 A1 19821028; DE 3111137 C2 19850613; JP S57168991 A 19821018; PL 133246 B1 19850531; PL 235517 A1 19821108; US 4446921 A 19840508; ZA 821848 B 19830330

DOCDB simple family (application)

EP 82102053 A 19820313; AU 8075282 A 19820224; CA 398860 A 19820319; CS 192582 A 19820319; DD 23818782 A 19820316; DE 3111137 A 19810321; JP 4618182 A 19820323; PL 23551782 A 19820319; US 35917182 A 19820316; ZA 821848 A 19820319