Subject	Chemical engineering, carbon materials
Specific subject area	Pyrolysis, biochar production
Data format	Raw and analysed data
Type of data	Tables and figures
Data collection	Design and drawing of the pyrolyser: SolidWorks software version 2020. Elemental composition: elemental analyser (vario MACRO cube). pH and EC: Eutech P700 (Eutech Instruments). Ash content: standard ashing by incineration in a muffle furnace at 500 °C. Calorific content: samples outsourced to an accredited laboratory (MARDILab). Porosity test: Micromeritics® Tristar II Plus. Surface area analysis: Scanning Electron Micrography (SEM) using FEI Quanta 400. Adsorption study: jar test method with sample analysed using liquid chromatography–mass spectrometry (LC-MS/MS) (Sciex 5500).
Data source location	Malaysian Agricultural Research and Development Institute (MARDI), Serdang, Selangor, Malaysia (latitude: 2.99077383, longitude: 101.699415)
Data accessibility	Repository name: Mendeley Data Data identification number: 10.17632/d7hj9pdy32.2 Direct URL to data: https://data.mendeley.com/datasets/d7hj9pdy32/2
Related research article	Baharom, N. A., Rahman, M. H. A., Shahrun, M. S., Suherman, F. H. S., & Masdar, S. N. H. (2020). Chemical composition and antimicrobial activities of wood vinegars from carambola, coconut shells and mango against selected plant pathogenic microorganisms. Malaysian Journal of Microbiology, 16(6). https://doi.org/10.21161/mjm.190652