| Title | A catalytic reactive distillation approach to high density polyethylene pyrolysis-Part 2-Middle olefin production |
|---|---|
| ID_Doc | 12306 |
| Authors | Santos, E; Rijo, B; Lemos, F; Lemos, MANDA |
| Title | A catalytic reactive distillation approach to high density polyethylene pyrolysis-Part 2-Middle olefin production |
| Year | 2021 |
| Published | |
| Abstract | A catalytic reactive distillation reactor, previously described, was improved to increase the production of middle and heavy hydrocarbons, to be used as feedstock or fuel in the viewpoint of a Circular Economy of plastics. The thermal and catalytic pyrolysis experiments were run using high density polyethylene (HDPE) under several experimental conditions, with a 1 % (w/w) of HZSM-5 for catalytic pyrolysis. Three different temperatures were tested in each case and the influence of the reaction time was evaluated at 500 degrees C and 430 degrees C for thermal pyrolysis and catalytic pyrolysis, respectively. Thermal pyrolysis of HDPE produced the higher amount of solid products (80 %wt. or higher) under the form of a waxy cream-colored material (wax) for all the experimental sets. For catalytic pyrolysis, the major product fraction was always liquid. The analysis of the liquid products showed that, for both thermal and catalytic pyrolysis, the products obtained were within the range of C5 to C11, with a higher yield on C8 and C9 in the case of thermal pyrolysis and on C6 and C7 for catalytic pyrolysis. The aim of this study was the development of an integrated reactor/separation system to increase the middle olefin production. It is possible with this reactor design to direct the pyrolysis of HDPE to the production of middle olefins that can be reused in the petrochemistry industry, as chemical feedstock, including in the production of new plastics. |
| http://manuscript.elsevier.com/S0920586120303989/pdf/S0920586120303989.pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
14828
|
Santos, E; Rijo, B; Lemos, F; Lemos, MANDA A catalytic reactive distillation approach to high density polyethylene pyrolysis - Part 1-Light olefin production(2019) | |
| 14584
|
Nazarloo, NH; Zabihi, O; Shirvanimoghaddam, K; Ahmadi, M; Zamani, P; Naebe, M Innovative Ex-Situ catalyst bed integration for LDPE plastic Pyrolysis: A thermodynamically closed system approach(2024) | |
| 27442
|
Gracida-Alvarez, UR; Winjobi, O; Sacramento-Rivera, JC; Shonnard, DR System Analyses of High-Value Chemicals and Fuels from a Waste High-Density Polyethylene Refinery. Part 1: Conceptual Design and Techno-Economic Assessment(2019)Acs Sustainable Chemistry & Engineering, 7.0, 22 | |
| 12451
|
Zolghadr, A; Kulas, D; Shonnard, D Evaluation of Pyrolysis Wax as a Solvent in Polyolefin Pyrolysis Processing(2022) | |
| 14449
|
Eschenbacher, A; Varghese, RJ; Abbas-Abadi, MS; Van Geem, KM Maximizing light olefins and aromatics as high value base chemicals via single step catalytic conversion of plastic waste(2022) | |
| 12454
|
Peng, YJ; Wang, YP; Ke, LY; Dai, LL; Wu, QH; Cobb, K; Zeng, Y; Zou, RG; Liu, YH; Ruan, RG A review on catalytic pyrolysis of plastic wastes to high-value products(2022) | |
| 17979
|
Horváth, D; Tomasek, S; Miskolczi, N Value-Added Pyrolysis of Waste Sourced High Molecular Weight Hydrocarbon Mixtures(2022)Energies, 15, 3 | |
| 7875
|
Okonsky, ST; Hogan, NR; Toraman, HE Effect of pyrolysis operating conditions on the catalytic co-pyrolysis of low-density polyethylene and polyethylene terephthalate with zeolite catalysts(2024) | |
| 19156
|
Horváth, D; Tomasek, S; Miskolczi, N Thermo-catalytic co-pyrolysis of waste plastic and hydrocarbon by-products using β-zeolite(2024)Clean Technologies And Environmental Policy, 26.0, 1 | |
| 14085
|
Shan, TL; Wang, KS; Li, Y; Gong, Z; Wang, CS; Tian, XL Study on the kinetics of catalytic pyrolysis of single and mixed waste plastics by spent FCC catalyst(2024)Journal Of Thermal Analysis And Calorimetry, 149, 4 |