Patent · US Active

Methods for treating an offgas containing carbon oxides

US10106416B2 · kind B2 · utility

0Cited by
219References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 20, 2016
Grant dateOct 23, 2018
Priority date—
Expiry dateOct 20, 2036

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC21C2100/02
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method of treating an offgas includes purifying the offgas to remove particulate matter, water, undesirable gaseous components and inert gases to produce a dried carbon oxide gas feedstock, and converting at least a portion of carbon oxides in the dried carbon oxide gas feedstock into solid carbon. In other embodiments, a method includes passing a dried carbon oxide gas feedstock through a multi-stage catalytic converter. A first stage is configured to catalyze methane-reforming reactions to convert methane into carbon dioxide, carbon monoxide and hydrogen with residual methane. A second stage is configured to catalyze the Bosch reaction and convert carbon oxides and hydrogen to solid carbon and water.

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