Positioning the present review against key prior review studies
| Study | Scope | Methodology | Key findings/focus | Limitation | Future direction implied |
|---|---|---|---|---|---|
| Chavando et al. (2022) | Broad RDF landscape | Snapshot review | Reviews RDF characteristics, production and application trends | Not cement-specific; limited focus on regulatory positioning and research agenda | Need sector-specific synthesis of cement manufacturing |
| Shehata et al. (2022) | RDF, circular economy and SDGs | Narrative review | Explains RDF's sustainability role and broader policy relevance | Does not focus specifically on cement manufacturing operations or kiln-level implications | Need operational and cement-sector implications |
| Sharma et al. (2022) | RDF co-processing in cement production | Technical review | Compares direct firing and RDF gasification options for cement production | Technology-centred; limited coverage of CE, waste management hierarchy and policy dimensions | Need integration of policy, CE and standardisation dimensions |
| Tihin et al. (2023) | MSW-derived RDF for cement co-processing | Overview/review | Summarises feedstock quality, preparation and cement kiln compatibility | Primarily technical; does not provide a broader sector-specific research agenda | Need broader research agenda beyond technical feedstock issues |
| Tahir et al. (2024) | Sustainable RDF production in waste processing facilities | Critical review | Focuses on RDF production systems and process sustainability | End-use in cement manufacturing is not the core analytical focus | Need end-use review focused on cement manufacturing |
| Present study | RDF in cement manufacturing | Systematic literature review | Combines descriptive and content analysis to clarify RDF/SRF distinctions, sectoral relevance, CE/WMH positioning and future research directions | Provides a cement-sector-specific synthesis and research agenda | Provides an integrated agenda for future study |
| Scope | Methodology | Key findings/focus | Limitation | Future direction implied | |
|---|---|---|---|---|---|
| Broad RDF landscape | Snapshot review | Reviews RDF characteristics, production and application trends | Not cement-specific; limited focus on regulatory positioning and research agenda | Need sector-specific synthesis of cement manufacturing | |
| RDF, circular economy and SDGs | Narrative review | Explains RDF's sustainability role and broader policy relevance | Does not focus specifically on cement manufacturing operations or kiln-level implications | Need operational and cement-sector implications | |
| RDF co-processing in cement production | Technical review | Compares direct firing and RDF gasification options for cement production | Technology-centred; limited coverage of CE, waste management hierarchy and policy dimensions | Need integration of policy, CE and standardisation dimensions | |
| MSW-derived RDF for cement co-processing | Overview/review | Summarises feedstock quality, preparation and cement kiln compatibility | Primarily technical; does not provide a broader sector-specific research agenda | Need broader research agenda beyond technical feedstock issues | |
| Sustainable RDF production in waste processing facilities | Critical review | Focuses on RDF production systems and process sustainability | End-use in cement manufacturing is not the core analytical focus | Need end-use review focused on cement manufacturing | |
| Present study | RDF in cement manufacturing | Systematic literature review | Combines descriptive and content analysis to clarify RDF/SRF distinctions, sectoral relevance, CE/WMH positioning and future research directions | Provides a cement-sector-specific synthesis and research agenda | Provides an integrated agenda for future study |
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