[특허]Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses

Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23K-010/00
출원번호	US-0349884 (1994-12-06)
발명자 / 주소	Alvi Obaid U. (Richardson TX) Toor Irfan A. (Plano TX)
출원인 / 주소	IRM, L.P. (Addison TX 02)
인용정보	피인용 횟수 : 63 인용 특허 : 0

초록 ▼

A disposal of waste material including water, volatile components and vitrifiable components, the waste material is heated in a dehydrator to remove the water, heated in a high-temperature dryer to vaporize hydrocarbon liquids, and then fed to the focus point of a primary plasma reactor where plasma arc jets are focused on the surface of a pool of the vitrifiable components. At the focus point the vitrifiable components are melted, and the volatile components are volatized. The melted vitrifiable components are received in a quench chamber where they solidify on a quench roller and are broken into chips and delivered to a receiving area. Heat from the quench chamber is transferred to the dehydrator and high-temperature dryer. The hydrocarbon liquids and volatized components are fed to a secondary plasma reactor where they are disassociated into their elemental components. The effluent from the secondary plasma reactor is scrubbed to remove hydrogen sulfide and halogens, and residual components, together with excess water vapor, are extracted in an absorber and fed back for further processing in the secondary plasma reactor.

대표청구항 ▼

A method of processing material that undergoes pyrolytic decomposition when heated to very high temperatures, said method including the steps of: (a) heating the material to very high temperatures in a plasma reactor having a plasma torch using steam as plasma gas for said plasma torch, the plasma torch being focused on the surface of a pool of the material to produce a localized melted surface so that the material undergoes pyrolytic decomposition to produce an effluent comprising vitrified solids and an effluent vapor; (b) removing undesired gases from the effluent vapor of the plasma reactor; and (c) conducting further pyrolysis on the undesired gases from the effluent vapor.

이 특허를 인용한 특허 (63)

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Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses 원문보기

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