Is materials diversity minimized in incoming packaging L03 Slide 47 Resource

Is materials diversity minimized in incoming

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Is materials diversity minimized in incoming packaging ?
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L03 Slide 47 Resource Provisioning/Solid Residue (1,3) Coal Mine Coal Overburden & Tailings Iron Mine Iron Ore Overburden & Tailings Steel via Blast Furnace Plastic Oil Well Oil
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L03 Slide 48 Steel via blast furnace Steel making uses substantial amounts of iron and coal “Metals from virgin ores are used, creating substantial waste rock residues” Score: _____ PET making Conventional petroleum production produces a relatively small amount of solid waste Score: _____ Resource Provisioning/Solid Residue (1,3)
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L03 Slide 49 If the following conditions applies, the matrix element rating is 0 : Energy use in the primary process is very high and no conservation is practiced. If all of the following condition applies, the matrix element rating is 4 : Negligible energy is used in the primary manufacturing process. If neither of the preceding ratings is assigned, complete the checklist below. Assign a rating of 1 , 2 , or 3 depending on the degree to which the product meets DfE preferences for this matrix element Does the primary process use energy-efficient equipment such as variable-speed motors? Is the primary process designed to minimize the use of energy-intensive process steps such as high heating differentials, heavy motors, extensive cooling, and so on? Is the primary process designed to minimize the use of energy-intensive evaluation steps such as testing in a heated chamber? Does the primary process use co-generation , heat exchange , and other techniques for utilizing otherwise wasted energy ? Source: SLCA Book, by Graedel Primary Process/Energy Use (3,2)
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L03 Slide 50 Primary Process/Energy Use (3,2) Blast Furnace Iron Heat Iron Ore Steam Coke Oxygen Furnace Steel Oxygen Heat CO Steel via Blast Furnace Plastic PET Production Plastic Resins Ethylene Glycol Terephtalic Acid
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L03 Slide 51 Steel via blast furnace “Very large consumer of oxygen” High heating differentials Waste heat recovery used to make steam Score: _____ PET making Not a large consumer of energy Low temperature process Score: _____ Primary Process/Energy Use (3,2)
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L03 Slide 52 If the following conditions applies, the matrix element rating is 0 : Large amounts of gaseous residues result from the primary process and no control is practiced. If all of the following condition applies, the matrix element rating is 4 : No gaseous residues result from the primary process. If neither of the preceding ratings is assigned, complete the checklist below. Assign a rating of 1 , 2 , or 3 depending on the degree to which the product meets DfE preferences for this matrix element Have opportunities for sale of all primary process gaseous residues as inputs into the products and processes of others been investigated, and modifications made to residues (if possible and necessary) to facilitate such transactions?
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  • Fall '09
  • MURRAYTHOMSON

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