Title:
PROCESS AND APPARATUS FOR REMOVING LOW CONCENTRATION, HIGH-VOLUME NON-CONDENSABLE GASES PRODUCED IN A KRAFT PULPING PROCESS
Document Type and Number:
WIPO Patent Application WO1996032532
Kind Code:
A3
Abstract:
An apparatus for introducing a high volume, low concentration non-condensable gas, which may contain sulfur into a chemical recovery steam generator furnace comprising: a plurality of gas inlet pipes, each gas inlet pipe having a source end and a nozzle end, in which the source end of the pipe is connected to a source of said high volume, low concentration non-condensable gas and the nozzle end of the pipe, which comprises a nozzle, vents to said chemical recovery steam generator furnace; a preheater positioned in close proximity to said pipe and upstream of said nozzle; a secondary air port with a source end and a furnace end, in which the source end of said port is connected to a source of such secondary air and the furnace end of said port vents to said chemical recovery steam generator furnace; wherein the area enclosed by said secondary air port is greater than the area of said nozzle and wherein said nozzle is positioned within the area enclosed by said secondary air port such that said pipe and said port are substantially co-axial with respect to one another is described.
Inventors:
BARSIN JOSEPH A (US)
OSCARSSON BO (US)
SMITH DAVID (US)
OSCARSSON BO (US)
SMITH DAVID (US)
Application Number:
PCT/SE1996/000471
Publication Date:
December 05, 1996
Filing Date:
April 11, 1996
Export Citation:
Assignee:
KVAERNER PULPING TECH (SE)
BARSIN JOSEPH A (SE)
OSCARSSON BO (SE)
SMITH DAVID (SE)
BARSIN JOSEPH A (SE)
OSCARSSON BO (SE)
SMITH DAVID (SE)
International Classes:
D21C11/06; D21C11/12; (IPC1-7): D21C11/12; D21C11/06
Foreign References:
| US3396076A | 1968-08-06 | |||
| US3520772A | 1970-07-14 |
Other References:
SVENSK PAPPERSTIDNING, 1969, SIGVARD LINDBERG, "How Uddeholm Destroys Air and Water Pollutants at the Skoghall Works", pages 484-487.
TAPPI, Volume 48, No. 5, May 1965, DONALD F. ADAMS, "A Survey of European Kraft Mill Odor Reduction Systems", pages 83A-87A.
TAPPI, Volume 48, No. 5, May 1965, DONALD F. ADAMS, "A Survey of European Kraft Mill Odor Reduction Systems", pages 83A-87A.
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