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Towards an eco-social circular economy exploring the feasibility study of pyrolysis on agricultural feedstocks [dataset] Open Access

The agricultural sector is challenging to decarbonise due to its reliance on heavy machinery and fossil fuels, which face issues when decarbonising via methods such as electrification. However, agriculture provides opportunities to generate renewable energy via biomass sources due to their abundance within this sector. This feasibility study used a continuous auger pyrolysis system to assess how straw waste from a medium-scale arable farm could convert energy from an external electrical source into usable chemical potential. Wheat, barley, oil seed rape (OSR), and bean straw have all been processed and pyrolysed under diferent temperatures and auger feed rates. The syngas product was then analysed, considering its composition and the lower heating value. Results indicate that the percentage of carbon monoxide and hydrogen and the total volume of syngas increased with temperature. In addition, the syngas’ energy quantity increased despite the product’s decreasing heating value. The case study’s annual energy demand was equal to 14.4% of the 3900 GJ maximum potential contained within the syngas, and thus it can be concluded that there is potential for the application of this system towards a circular economy. The system’s cold gas, net, and electrical conversion efficiency were also assessed with maximum values of 37.1%, 30.1%, and 174.4%, respectively. Furthermore, the statistical analysis confirms high predictability for wheat, barley, bean, and OSR feedstocks, with a general linear model showing high accuracy across all.

Descriptions

Resource type

Dataset

Contributors

Data collector: Allison,Thomas ¹
Creator: Vijayalakshmi, Shivaprasad ¹
Contact person: Vijayalakshmi, Shivaprasad ¹
Data collector: Vijayalakshmi, Shivaprasad ¹
Data curator: Malik, Abdullah ¹
Editor: Rafiq, Rehman ²
Editor: Wang, Yaodong ¹
Editor: Roskilly, Anthony ¹

¹ Durham University, UK
² Hybrid Gasifcation Ltd, Newcastle Upon Tyne UK

Funder

Innovate UK

Research methods

This work aims to assess the energy potential and characteristics of syngas produced using an electrically heated, auger-fed pyrolysis system. It varies considerably from similar projects in the literature by solely focusing on the syngas and maximising the energy content, as well as considering different feedstocks and conditions to ensure it fills a clear research gap. The assessment of all four biomass types was key to the study, considering wheat, barley, OSR, and bean straws, as seen in Table 1. These were assessed to optimise conditions, maximising the energy potential of the syngas produced, and were run at temperatures of 750 °C, 800 °C, 850 °C, and 900 °C. In addition to temperature, the auger feed rate was assessed considering both 5 rpm and 10 rpm. The syngas produced was evaluated by the gas analyser, assessing the vol % of CO, CO2, H2, CH4, C2H4, CnHm, and N2.

Other description

Keyword

Agriculture
Auger
Barley
Bean
Lower heating value
Oil seed rape
Pyrolysis
Wheat

Subject

Biomass energy

Location

UK

Language

English

Cited in

doi:10.1007/s13399-024-06361-z

Identifier

doi:10.15128/r2zw12z535r

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

05/01/2024

File Details

Depositor

S.K. Vijayalakshmi

Date Uploaded

11 February 2025, 14:02:02

Date Modified

12 February 2025, 09:02:15

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Characterization

File format: vnd.ms-excel (Microsoft Excel 2007+, OpenDocument Text)

Mime type: application/vnd.ms-excel

File size: 74277

Last modified: 2025:02:11 14:55:07+00:00

Filename: Towards an eco-social circular economy exploring the feasibility study of pyrolysis on agricultural feedstocks_DataSet.xlsx

Original checksum: e0e60b793f1ecf82db86981d66bca40a