A Feasibility Study for Recycling Used Automotive Oil Filters In A Blast Furnace

Smailer, Ralph M. ; Dressel, Gregory L. ; Hill, Jennifer Hsu

American Iron and Steel Institute Technology Roadmap Program (United States)

关键词: Hydrocarbons;    Recycling;    Sanitary Landfills;    Fuel Gas;    36 Materials Science;   

DOI  :  10.2172/797408
RP-ID  :  DOE/ID/13554/0041
RP-ID  :  FC07-97ID13554
RP-ID  :  797408

美国|英语

来源: UNT Digital Library

【 摘 要 】

This feasibility study has indicated that of the approximately 120,000 tons of steel available to be recycled from used oil filters (UOF's), a maximum blast furnace charge of 2% of the burden may be anticipated for short term use of a few months. The oil contained in the most readily processed UOF's being properly hot drained and crushed is approximately 12% to 14% by weight. This oil will be pyrolized at a rate of 98% resulting in additional fuel gas of 68% and a condensable hydrocarbon fraction of 30%, with the remaining 2% resulting as carbon being added into the burden. Based upon the writer's collected information and assessment, there appears to be no operational problems relating to the recycling of UOF's to the blast furnace. One steel plant in the US has been routinely charging UOF's at about 100 tons to 200 tons per month for many years. Extensive analysis and calculations appear to indicate no toxic consideration as a result of the pyrolysis of the small contained oil ( in the 'prepared' UOFs) within the blast furnace. However, a hydrocarbon condensate in the ''gasoline'' fraction will condense in the blast furnace scrubber water and may require additional processing the water treatment system to remove benzene and toluene from the condensate. Used oil filters represent an additional source of high quality iron units that may be effectively added to the charge of a blast furnace for beneficial value to the operator and to the removal of this resource from landfills.