Title:
CONVERSION OF HYDROGEN CHLORIDE GAS WITH RECOVERY OF CHLORINE
Document Type and Number:
WIPO Patent Application WO2001064578
Kind Code:
A8
Abstract:
A method and apparatus for the reactive removal of hydrogen chloride gas from a process stream with the recovery of molecular chlorine are disclosed. In a preferred method, hydrogen chloride gas is contacted with a high-surface-area-to-volume particulate iron oxide in the presence of hydrogen gas and the resultant iron chloride is further converted to iron oxide and chlorine. In a second preferred method, a flow of HCI and hydrogen gas are passed to a first bed of reactive oxide. A sensor determines when substantially all of the reactive material of the first bed is spent. A valve, activated by the sensor, diverts the flow of gas to a second bed while the reactive material in the first bed is regenerated and the chlorine gas is recovered. A preferred apparatus for the recovery of chlorine from hydrogen chloride gas comprises a plurality of reaction chambers each containing a metal oxide.
Inventors:
RAPP ROBERT A
VAIS PHILIP
VAIS PHILIP
Application Number:
PCT/US2001/006305
Publication Date:
December 06, 2001
Filing Date:
February 28, 2001
Export Citation:
Assignee:
UNIV OHIO STATE (US)
International Classes:
C01B7/04; (IPC1-7): C01B7/04; B01J8/04; B01J8/26; C01G49/10
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