Final Report - Ohio Department of Transportation

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$Page 1 of 8 Traffic Survey Report 12/29/2006 file://X:\TC\Traffic ...$

Fig. 16 - Sealed Carbonization Reactor Attached to Off Gas Discharge Piping directed the gas flow downward, leading to condensation of denser products. Products staying in gas form could continue to flow up through a second fitting and towards a second 1000 ml collection flask. The open top of the second glass fitting was covered with a screw-on test tube cap to avoid the loss of off-gases. Figure 17 shows the setup of the pipe, heating tape, thermocouples and first collection flask on top of the muffle furnace. Fig. 17 - Heated Off Gas Piping and Thermocouples to Regulate Discharge Temperature 25
The second 1000 ml collection flask was attached to the first by plastic tubing. The second flask was also attached to a series of water-cooled condensers. This was configured to allow condensate to drain back into the collection flask. Any gaseous byproducts that did not condense were discharged through the exhaust of a laboratory hood (see Fig. 18). In early trials of the carbonization process (i.e. with samples from 2008), unheated discharge piping directed the off gas directly to the 1000 ml flask and the water-cooled condensers. This led to more bituminous products condensing and concentrating within the discharge pipe, which required constant clearing to maintain adequate flow. To avoid this problem and to increase actual collection of off-products, the configuration with the 250 ml collection flask was used. The impact of these collection system modification are discussed in the Results section. Fig. 18 - Secondary Collection Flask with Water-Cooled Condenser Once the setup and all connections were made between the reactor, pipe, flasks, and tube, the muffle furnace was closed and set to a temperature of 250° C for approximately 45 min. After this initial period of heating, the furnace would be raised and set to 350° C. While some off gassing occurred during the first heating setting (mostly steam), much more significant off gassing (a dense white smoke) would begin to travel through the collection system after the 26
Page 1: Final Report Bioasphalt from Urban
Page 4 and 5: Credit This document was prepared i
Page 6 and 7: List of Figures, Tables and Notatio
Page 8 and 9: 1. Introduction The research projec
Page 10 and 11: Fig. 1 - Nutrient Poor Oxisol (left
Page 12 and 13: Table 2 - Examples of Feed Stocks T
Page 14 and 15: CWRU’s carbonization reactors fal
Page 16 and 17: Table 3 - Results of Initial Carbon
Page 18 and 19: The results of the growth studies w
Page 20 and 21: The Shell Oil Company has experimen
Page 22 and 23: of the windrows for aeration. The c
Page 24 and 25: implementing the tests for which OD
Page 26 and 27: (8) Apply YWC to a sufficient volum
Page 28 and 29: Fig. 10 -Yard Waste Brush Pile (Oak
Page 30 and 31: 3.3 Testing Methods Drying - To mea
Page 34 and 35: interior temperature of the furnace
Page 36 and 37: Fig. 22 - Maple Samaras Before Carb
Page 38 and 39: 3.4 Data Analysis In order to calcu
Page 40 and 41: 2009 Buckeye Fruit 10.37 51.64 37.9
Page 42 and 43: 2010 Rhododendron Leaves 57.36 18.9
Page 44 and 45: Fig. 26 - Improvement of Byproduct
Page 46 and 47: One task of the research project wa
Page 48 and 49: Table 10 - National Asphalt Organiz
Page 50 and 51: Table 15 - Composting Organizations
Page 52 and 53: had a significant aqueous fraction.
Page 54 and 55: Bishara, S.W.,Robertson, R.E. and M
Page 56 and 57: Ji-Lu, Z., (2007), “Bio-oil from
Page 58 and 59: Terrel. R.L. (1980), “Evaluation
Page 60: Appendix A - The Asphalt Institute

Final Report - Ohio Department of Transportation

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