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A Prototype Pyrolyzer for Solid Waste Resource Recovery in Space
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 09, 2001 by SAE International in United States
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Pyrolysis processing is one of several options for solid waste resource recovery in space. It has the advantage of being relatively simple and adaptable to a wide variety of feedstocks and it can produce several usable products from typical waste streams. The objective of this study is to produce a prototype mixed solid waste pyrolyzer for spacecraft applications. A two-stage reactor system was developed which can process about 1 kg of waste per cycle. The reactor includes a pyrolysis chamber where the waste is heated to temperatures above 600°C for primary pyrolysis. The volatile products (liquids, gases) are transported by a N2 purge gas to a second chamber which contains a catalyst bed for cracking the tars at temperatures of about 1000 °C −1100 °C. The tars are cracked into carbon and additional gases. Most of the carbon is subsequently gasified by oxygenated volatiles (CO2, H2O) from the first stage. In a final step, the temperature of the first stage can be raised and the purge gas switched from N2 to CO2 in order to gasify the remaining char in the first stage and the remaining carbon deposits in the second stage. Alternatively, the char can be removed from the first stage and saved as a future source of CO2 or used to make activated carbon. The product gases from the pyrolyzer will be rich in CO and cannot be vented directly into the cabin. However, they can be processed in a shift reactor or sent to a high temperature fuel cell. A control system based on artificial neural networks (ANNs) is being developed for the reactor system. ANN models are well suited to describing the complicated relationships between the composition of the starting materials, the process conditions and the desired product yields.
CitationSerio, M., Kroo, E., Bassilakis, R., Wójtowicz, M. et al., "A Prototype Pyrolyzer for Solid Waste Resource Recovery in Space," SAE Technical Paper 2001-01-2349, 2001, https://doi.org/10.4271/2001-01-2349.
- Tri, T.O. Edeen, M.A. Henninger, D.L. SAE 26th International Conference on Environmental Systems 961592 8 July 8–11 1996
- Budenheim, D.L. Wydeven, T. 113 123 Nov 1994
- Flynn, M Budenheim, D. Space Technology and Applications International Forum (STAIF-98) Proceedings of The 2nd Conference on Applications of Thermophysics In Microgravity and 3rd Conference on Commercial Development of Space Albuquerque, NM 835 839 Jan 25–29 1998
- Ferrall, J.F. Ganapathi, G.B. Rohatgi, N.K. Seshan, P.K.
- Bilardo, V.J., Jr. Theis, R.L.A. 1748 1764 May 31–June 4, 1992
- Ferrall, J. Rohatgi, N.K. Seshan, P.K. SAE Paper 921119
- Marrero, T.R. 1983
- Smernoff, D.T. Wharton, R.A., Jr., Averner, M.M. 263 280
- Spurlock, P. Spurlock, J.M. Evanich, P.L. 21st Conference on Env. Systems San Francisco 1991
- Roberson, B.J. Lemay, C.S. 1993
- June 1996
- Pisharody, S. Borchers, B. Schlick, G. “Solid Waste Processing in a CELSS: Nitrogen Recovery,” Life Support & Biosphere Science 3 61 65 1996
- Bubenheim, D.L. Wydeven, T. “Approaches to Resource Recovery in Controlled Ecological Life Support Systems,” Adv. Space Res 14 11 113 123 1994
- Serio, M.A. Chen, Y. Wójtowicz, M.A. Suuberg, E. “Pyrolysis Processing for Solid Waste Resource Recovery in Space,“ 30 th International Conference on Environmental Systems Toulouse, France July 10–13 2000 2000-01-2286
- Wójtowicz, M.A., et.al March 2000
- Donat, J.S. et al. Proc. of the American Control Conf., IEEE Service Center Piscataway, NJ 1990
- Hernandez E. Arkun Y. Proc. of the American Control Conference, IEEE Service Center Piscataway, NJ 1990
- Ydstie B.E. Comput. Chem. Eng 14 583 1990
- Psichogios D.C. Ungar L.H. Ind. Eng. Chem. Res 30 2564 1991
- Babu J. Hanratty F.W. “Predictive Control of Quality in a Batch Manufacturing Process Using Artificial Neural Network Models,” Ind. Eng. Chem. Res 32 1951 1961 1993