Patent · US Expired

Process for the production of carbonized material

US6576212B2 · kind B2 · utility

6Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 2000
Grant dateJun 10, 2003
Priority date
Expiry dateDec 19, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E50/10
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A process of producing a carbonized material, which includes a step of treating the biomass with a microwave for a period of time sufficient to carbonize an inner region thereof but insufficient to carbonize an outer region thereof, thereby obtaining a partly carbonized product, a step of contacting the partly carbonized product with an oxidizing gas for a period of time sufficient to carbonize the outer region, thereby obtaining a completely carbonized product, and a step of cooling the completely carbonized product in a non-oxidizing atmosphere.

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