Loading...
Please wait, while we are loading the content...
Similar Documents
Entrained Flow Gasification of Polypropylene Pyrolysis Oil
| Content Provider | MDPI |
|---|---|
| Author | Weiland, Fredrik Qureshi, Muhammad Saad Wennebro, Jonas Lindfors, Christian Ohra-Aho, Taina Shafaghat, Hoda Johansson, Ann-Christine |
| Copyright Year | 2021 |
| Description | Petrochemical products could be produced from circular feedstock, such as waste plastics. Most plants that utilize syngas in their production are today equipped with entrained flow gasifiers, as this type of gasifier generates the highest syngas quality. However, feeding of circular feedstocks to an entrained flow gasifier can be problematic. Therefore, in this work, a two-step process was studied, in which polypropylene was pre-treated by pyrolysis to produce a liquid intermediate that was easily fed to the gasifier. The products from both pyrolysis and gasification were thoroughly characterized. Moreover, the product yields from the individual steps, as well as from the entire process chain, are reported. It was estimated that the yields of CO and $H_{2}$ from the two-step process were at least 0.95 and 0.06 kg per kg of polypropylene, respectively, assuming that the pyrolysis liquid and wax can be combined as feedstock to an entrained flow gasifier. On an energy basis, the energy content of CO and $H_{2}$ in the produced syngas corresponded to approximately 40% of the energy content of the polypropylene raw material. This is, however, expected to be significantly improved on a larger scale where losses are proportionally smaller. |
| Starting Page | 7317 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26237317 |
| Journal | Molecules |
| Issue Number | 23 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-02 |
| Access Restriction | Open |
| Subject Keyword | Molecules Pyrolysis Gasification Syngas Chemical Recycling Plastic Waste |
| Content Type | Text |
| Resource Type | Article |
