Fuel Oil Production from Two-Stage Pyrolysis-Catalytic Reforming of Brominated High Impact Polystyrene Using Zeolite and Iron Oxide Loaded Zeolite Catalysts

Read  full  paper  at:http://www.scirp.org/journal/PaperInformation.aspx?PaperID=55374#.VSOUJfzLfHE

The experiments of two-stage pyrolysis and catalytic reforming of high impact polystyrene (HIPS) containing brominated flame retardants and antimony trioxide (Sb2O3) were conducted in the presence of four zeolite catalysts in order to remove the bromine content from the derived oil products. The four catalysts used were natural zeolite (NZ), iron oxide loaded natural zeolite (Fe-NZ), HY zeolite (YZ) and iron oxide loaded HY zeolite (Fe-NZ). The effect of catalyst types on the product yield, the gas and oil product composition and the debromination efficiency of the oil products was evaluated in details. The results showed that the loading of iron oxides reduced the pore size and surface areas of natural zeolite and HY zeolite. Regardless of the presence of catalysts, the single-ring aromatic compounds were the main components of the oil products, such as ethylbenzene, toluene, styrene and cumene. Meanwhile, when YZ and Fe-YZ were used, the two-ring and multi-ring aromatic compounds in the oils, as well as the yield of gas products, significantly increased at the expense of valuable single-ring aromatic compounds. Furthermore, in terms of the debromination performance of the oil products, Fe-NZ and Fe-YZ were better than NZ and YZ, duo to the loading of iron oxide, which could react with derived HBr and then remove more bromine from the oil products.

Cite this paper

Wu, H. , Shen, Y. , Ma, D. , An, Q. , Harada, N. and Yoshikawa, K. (2015) Fuel Oil Production from Two-Stage Pyrolysis-Catalytic Reforming of Brominated High Impact Polystyrene Using Zeolite and Iron Oxide Loaded Zeolite Catalysts. Open Journal of Ecology, 5, 136-146. doi: 10.4236/oje.2015.54012.


[1] Yang, X.N., Sun, L.S., Xiang, J., Hu, S. and Su, S. (2013) Pyrolysis and Dehalogenation of Plastics from Waste Electrical and Electronicequipment (WEEE): A Review. Waste Management, 33, 462-473.
[2] Martinho, G., Pires, A., Saraiva, L. and Ribeiro, R. (2012) Composition of Plastics from Waste Electrical and Electronic Equipment (WEEE) by Direct Sampling. Waste Management, 32, 1213-1217.
[3] Ongondo, F.O., Williams, I.D. and Cherrett, T.J. (2011) How Are WEEE Doing? A Global Review of the Management of Electrical and Electronic Wastes. Waste Management, 31, 714-730.
[4] Jakab, E., Uddin, Md.A., Bhaskar, T. and Sakata, Y. (2003) Thermal Decomposition of Flame-Retarded High Impact Polystyrene. Journal of Analytical and Applied Pyrolysis, 68-69, 83-99.
[5] Hall, W.J. and Williams, P.T. (2008) Removal of Organobromine Compounds from the Pyrolysisoils of Flame Retarded Plastics Using Zeolite Catalysts. Journal of Analytical and Applied Pyrolysis, 81, 139-147.
[6] Hall, W.J., Miskolczi, N., Onwudili, J. and Williams, P.T. (2008) Thermal Processing of Toxic Flame-Retarded Polymers Using a Waste Fluidized Catalytic Cracker (FCC) Catalyst. Energy & Fuels, 22, 1691-1697.
[7] Miskolczi, N., Hall, W.J., Angyal, A., Bartha, L. and Williams, P.T. (2008) Production of Oil with Low Organobromine Content from the Pyrolysisof Flame Retarded HIPS and ABS Plastics. Journal of Analytical and Applied Pyrolysis, 83, 115-123.
[8] Bhaskar, T., Matsui, T., Azhar Uddin, Md., Kaneko, J., Muto, A. and Sakata, Y. (2003) Effect of Sb2O3 in Brominated Heating Impact Polystyrene (HIPS-Br) on Thermal Degradation and Debromination Byiron Oxide Carbon Composite Catalyst (Fe-C). Applied Catalysis B: Environmental, 43, 229-241.
[9] Bhaskar, T., Matsui, T., Kaneko, J., Uddin, Md.A., Muto, A. and Sakata, Y. (2002) Novel Calcium Based Sorbent (Ca-C) for the Dehalogenation (Br, Cl) Process during Halogenated Mixed Plastic (PP/PE/PS/PVC and HIPS-Br) Pyrolysis. Green Chemistry, 4, 372-375.
[10] Terakado, O., Ohhashi, R. and Hirasawa, M. (2011) Thermal Degradation Study of Tetrabromobisphenol A under the Presence Metaloxide: Comparison of Bromine Fixation Ability. Journal of Analytical and Applied Pyrolysis, 91, 303-309.


Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  更改 )

Google+ photo

You are commenting using your Google+ account. Log Out /  更改 )

Twitter picture

You are commenting using your Twitter account. Log Out /  更改 )

Facebook photo

You are commenting using your Facebook account. Log Out /  更改 )


Connecting to %s