Method to control carbon formation and temperature in the free space of coke oven chambers

Patent · Tue Jun 10 04:00:00 EDT 1980

OSTI ID:5784598

Hatters, H D; Stoll, J M

A jumper pipe forms a passageway between the free spaces above coal charges in adjacent coking chambers for the natural flow of relatively cooler coke oven gas from the free space above the coal charge in the most recently charged one of the coking chambers into the free space above the coal charge in the other of the coking chambers to reduce the relatively higher temperature therein. An inert atmosphere is maintained along at least part of the passageway to prevent the flow of coke oven gas essentially during decarburization and the pushing of coke from either of the two adjacent coking chambers. Valve members at opposite end portions of the jumper pipe are moved to at least partially-closed positions to facilitate the maintenance of an inert atmosphere therein. A supply of steam or gaseous nitrogen is used to maintain the inert atmosphere in the jumper pipe. The inert gas prevents the entrance of coke oven gas into a coking chamber while undergoing decarburization.

• Assignee: Jones and Laughlin Steel Corp
• Patent Number(s): US 4207145
• OSTI ID: 5784598
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
COAL
COKE OVENS
COKING
CONTROL
CONTROL EQUIPMENT
DECARBURIZATION
DECOMPOSITION
DEPOSITION
ELEMENTS
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUELS
GASES
INERT ATMOSPHERE
INHIBITION
MATERIALS
NITROGEN
NONMETALS
PIPES
PRESSURIZING
TEMPERATURE CONTROL
VALVES