Control system for apparatus to gasify fine-grain fuels in a reactor
US4073628A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Dec 1, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S48/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Fine-grain fuel is delivered from pressure vessels with a vehicle gas as a fluidized flow into a reactor for gasification at an elevated pressure. A gaseous gasification agent is also fed into the reactor. A control system for the fine-grain fuel and gasification agent includes detectors to provide an electrical signal which varies during feeding of fuel from the pressure vessels into the reactor. Controllers produce a fuel rate control signal corresponding to a comparison between the electrical signal from the detectors and a predetermined reference value corresponding to the desired fuel supply rate. Control valves respond to the fuel rate control signal to adjust the supply of vehicle gas to transfer fuel from the pressure vessels into the reactor. When a plurality of pressure vessels is used, then separate detectors, controllers and control valves form part of a control system which further includes computing means to provide a summation signal corresponding to the output signals from the various detectors. The summation signal is used by the various controllers for adjusting the control valves associated with each pressure vessel. A further controller produces a gasification a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.