Patent · US Expired

Method of pyrolyzing organic material using a two-bed pyrolysis system

US4432290A · kind A · utility

21Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 7, 1982
Grant dateFeb 21, 1984
Priority date
Expiry dateJan 7, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10B49/22
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

An improvement in a method of pyrolysis wherein an organic material, such as city waste, is pyrolyzed using a two-bed type pyrolysis system including a fluidized bed type pyrolysis reactor and a combustion reactor and wherein energy is recovered from burning the pyrolysis gases produced is disclosed. The improvement comprises recovering the heat of a combustion exhaust gas which is generated when the energy of the pyrolysis gas is recovered, heating a fluid medium with the recovered heat, and heating the organic material to be pyrolyzed with the heated fluid heat medium to dry the organic material before it is pyrolyzed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.