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Life-Cycle Assessment of Wooden Pallet Production

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Cradle-to-Grave Life-Cycle Assessment of Wooden Pallet Production in the United States 19 Table 13—Secondary (background) data sources—con. Inputs LCI data process and source Geography Year Data quality assessment Liquid propane DATASMART (US EI 2.2): Liquefied petroleum gas, combusted in industrial boiler NREL/US U North America 2018 Technology: very good; process models average North American technology Time: very good; data are less than 5 years old Geography: very good; data are representative of North American liquefied petroleum gas production and combustion Fasteners (nails, staples, bolts, screws) World Steel Association Dataset Global 2018 Technology: very good; process represents steel products manufacturing Time: very good; data are less than 5 years old Geography: very good; process models average global technology Paint Alkyd paint, white, 60% in solvent, at plant/US- US-EI U North America 2017 Technology: very good; process models average North American technology Time: very good; data are less than 5 years old Geography: very good; data are representative of North American production Lubricating oil, grease DATASMART (US EI 2.2): Lubricating oil, at plant/US- US- EI U North America 2018 Technology: very good; process models average North American technology Time: very good; data are less than 5 years old Geography: very good; data are representative of North American processes C – end-of-life-stage Waste landfilling Ecoinvent 3.5: Process-specific burden, sanitary landfill {RoW}| processing | Cut-off, U Global 2016 Technology: good; process models average global technology Time: very good; data are less than 5 years old Geography: good; data are representative of global practice D – recovery and recycling potential Woody biomass energy CORRIM database: wood-fired boiler North America 2015 Technology: very good; process represents combustion of woody biomass in an industrial boiler Time: good; data are within 2 years Geography: good, representative of North American wood boilers Table 14—Indicators describing end-of-life treatment and end- of-life output flows for 100,000 lb (45.4 metric tons) of pallet loads of product delivered Indicator Unit Value Inputs Pallet end-of-life treatment OD kg 35.30 Outputs Components for reuse OD kg 13.18 Materials for recycling OD kg 14.25 Materials for energy recovery OD kg 6.11 Exported energy (materials for energy recovery) a MJ, NCV 103.79 Hazardous waste generated kg 0.00 a Wood fuel net calorific value (NCV), 17 megajoule (MJ) per oven-dry (OD) kg (Puettmann and Milota 2017): 6.11 × 17 = 103.79.

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