|
| US3981690 | 15 Jan 1975 | 21 Sep 1976 | The United States of America as represented by the United States Energy Research and Development Administration | Agglomerating combustor-gasifier method and apparatus for coal gasification |
| US4026679 | 8 Mar 1976 | 31 May 1977 | Stora Kopparbergs Bergslags Aktiebolag | Apparatus for and process of converting carbonaceous materials containing sulphur to an essentially sulphur-free combustible gas |
| US4069024 | 9 May 1977 | 17 Jan 1978 | Combustion Engineering, Inc. | Two-stage gasification system |
| US4137052 | 17 Aug 1977 | 30 Jan 1979 | | Apparatus and system for producing coal gas |
| US4154581 | 12 Jan 1978 | 15 May 1979 | Battelle Development Corporation | Two-zone fluid bed combustion or gasification process |
| US4186669 | 22 Sep 1977 | 5 Feb 1980 | | Coal burning process |
| US4248605 | 30 Jul 1979 | 3 Feb 1981 | Conoco, Inc. | Gasification of coal liquefaction residues |
| US4282010 | 17 Jul 1979 | 4 Aug 1981 | The United States of America as represented by the United States Department of Energy | Fluidized bed injection assembly for coal gasification |
| US4309194 | 3 Jun 1980 | 5 Jan 1982 | The United States of America as represented by the United States Department of Energy | Particle withdrawal from fluidized bed systems |
| US4312638 | 18 Apr 1980 | 26 Jan 1982 | Westinghouse Electric Corp. | Coal gasification process |
| US4347064 | 19 Jan 1981 | 31 Aug 1982 | Metallgesellschaft Aktiengesellschaft | Process of gasifying fine-grained solid fuels |
| US4387560 | 29 Dec 1980 | 14 Jun 1983 | United Technologies Corporation | Utilization of coal in a combined cycle powerplant |
| US4387561 | 29 Dec 1980 | 14 Jun 1983 | United Technologies Corporation | Utilization of coal powering a gas turbine engine |
| US4391611 | 5 Mar 1981 | 5 Jul 1983 | The United States of America as represented by the United States Department of Energy | Gasification system |
| US4397656 | 1 Feb 1982 | 9 Aug 1983 | Mobil Oil Corporation | Process for the combined coking and gasification of coal |
| US4400181 | 28 Jan 1982 | 23 Aug 1983 | Hydrocarbon Research, Inc. | Method for using fast fluidized bed dry bottom coal gasification |
| US4412910 | 21 Oct 1981 | 1 Nov 1983 | Westinghouse Electric Corp. | Recovery of fuel from oil shale |
| US4444007 | 12 Mar 1982 | 24 Apr 1984 | Chevron Research Company | Method for combined cycle electrical power generation |
| US4478039 | 6 Jun 1983 | 23 Oct 1984 | United Technologies Corporation | Utilization of coal in a combined cycle powerplant |
| US4597771 | 2 Apr 1984 | 1 Jul 1986 | | Fluidized bed reactor system for integrated gasification |
| US4854249 | 19 May 1988 | 8 Aug 1989 | Institute of Gas Technology | Two stage combustion |
| US4867756 | 3 Aug 1987 | 19 Sep 1989 | Institute of Gas Technology | Removal of sulfur compounds in fluidized bed carbonaceous solids gasification |
| US4936047 | 20 Apr 1988 | 26 Jun 1990 | Battelle Development Corporation | Method of capturing sulfur in coal during combustion and gasification |
| US5224338 | 23 Jul 1991 | 6 Jul 1993 | Mitsubishi Jukogyo Kabushiki Kaisha | Gasifying combustion method and gasifying power generation method |
| US5517815 | 18 Jan 1995 | 21 May 1996 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal gasification power generator |
| US5641327 | 2 Dec 1994 | 24 Jun 1997 | | Catalytic gasification process and system for producing medium grade BTU gas |
| US5765365 | 31 Jan 1996 | 16 Jun 1998 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal gasification power generator |
| US5776212 | 13 Sep 1996 | 7 Jul 1998 | | Catalytic gasification system |
| US5855631 | 6 May 1997 | 5 Jan 1999 | | Catalytic gasification process and system |
| US5895508 | 9 Aug 1996 | 20 Apr 1999 | The United States of America as represented by the United States Department of Energy | Down-flow moving-bed gasifier with catalyst recycle |
