High pressure gasifier system using electrically assisted heating

摘要

The problems of the prior art are overcome by the apparatus and method disclosed herein. The reactor vessel of a plasma gasifier is operated at high pressure. To compensate for the negative effects of high pressure, various modifications to the plasma gasifier are disclosed. For example, by moving the slag, more material is exposed to the plasma, allowing better and more complete processing thereof. In some embodiments, magnetic fields are used to cause movement of the slag and molten metal within the vessel. An additional embodiment is to add microwave heating of the slag and/or the incoming material. Microwave heating can also be used as an alternative to plasma heating in a high pressure gasification system.

主权项

1. A plasma gasification system configured to produce synthesis gas from waste, the gasification system comprising:
a reactor vessel configured to receive the waste; a first electrode and a second electrode disposed inside the reactor vessel and configured to generate an arc between the first electrode and the second electrode, wherein the arc is configured to plasma heat the waste; a control unit configured to maintain the reactor vessel at a pressure greater than one bar; a microwave launching system configured to emit microwaves into the reactor vessel, the microwave launching system having a plurality of launching structures positioned and configured to converge microwave radiation in a region where plasma is located inside the reactor vessel; and coils configured external to the reactor vessel, wherein the coils are configured to provide a magnetic field, wherein the magnetic field is configured to provide movement of slag or the plasma in the system.