Plastic waste as an alternative sustainable fuel in internal combustion (IC) engines – A comprehensive review
Bibliographic record
Abstract
Pyrolysis offers a sustainable solution to address pressing environmental deterioration and energy deficiency problems. Valorization of pyrolysis gives improved results in terms of Carbon sequestration, Value-added chemicals, Energy recovery, waste minimization, and soil amendment. In addition, it reduces greenhouse gas emissions related to incineration and other plastic waste management methods. The objective of this review is to explore the various pyrolysis techniques and catalysts for the improvement of plastic pyrolysis. First, basic plastic pyrolytic oil extraction methods relevant to recent pyrolysis techniques are examined. Results showed that pyrolysis technology is moving forward and is very close to commercialization. Catalysts play a vital role in the plastic pyrolytic oil extraction process. Catalysts push the pyrolysis process to the next level by reducing energy input to the pyrolysis process, shortening the desalination process of oil after extraction, adding value, and reducing solid char quantity through the process of effective cracking. However, catalyst usage raises trouble, such as reusability, acting at a different phase, cost, availability, and surface /volume ratio. Nano catalyst overcomes the troubles. This review comprehensively discusses the pyrolysis type's subsequent section, catalytic pyrolysis, and different catalyst reaction reviewed; the incorporative section nano catalyst usage in pyrolysis is discussed. The last section shares the results of plastic oil-fueled internal combustion (IC) engines along with nano additive impact. This evaluation gives a clear vision to create strong environmental stewardship with the local community through better waste management practices. • Pyrolysis converts plastic waste into valuable fuels and chemicals, addressing environmental and energy issues. • Catalysts enhance pyrolysis efficiency, reduce energy input, and improve oil quality. • Pyrolysis effectively transforms plastic waste into oil for IC engines, presenting an alternative fuel source. • Pyrolysis supports sustainability by reducing plastic waste and producing economically valuable products.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".