عنوان انگلیسی مقاله:
Experimental and feasibility study of spent coffee grounds upscaling via pyrolysis towards proposing an eco-social innovation circular economy solution
ترجمه فارسی عنوان مقاله:
مطالعه تجربی و امکان سنجی قهوه مصرفی که از طریق تجزیه در اثر تجزیه در اثر تجزیه در اثر تجزیه در اثر تجزیه در اثر تجزیه در اثر تجزیه در اثر استفاده از تجزیه در اثر تجزیه و تحلیل مواد شیمیایی ، به منظور ارائه یک راه حل اقتصاد دایره ای نوآوری اقتصادی - اجتماعی
Sciencedirect - Elsevier - Science of the Total Environment, 718 (2020) 137316: doi:10:1016/j:scitotenv:2020:137316
There is a need for eco-social business models in the food waste sector that are more cascading and circular- based, while having economic, environmental and social beneﬁts. The aim of this study is to bring insights and data of spent coffee grounds large-scale slow pyrolysis, to seize new opportunities for eco-innovative solutions in the circular economy, by identifying upcycling opportunities for resource recovery of this waste. First, an experimental study was conducted, and a set of pyrolysis experiments were carried out at a temperature range from 450 to 750 °C, with a heating rate of 50°/s, under helium atmosphere, to explore the products yields and the best process conditions. Second, an economic study was conducted for a standalone pyrolysis plant fueled with the spent coffee grounds streams from coffee shops of a city with 150,000 inhabitants, in central Greece, aiming at the cost and the proﬁtability of the endeavor estimation. The calculations were based on the features of a slow pyrolysis rotary kiln technology designed at Aristotle University, and co-developed with an Irish company, under the funding of an EU LIFE+ project. For an estimated capacity of 2566 t/yr of SCG, the revenue of the endeavor was calculated at 47€/t of SCG. The economic indicators ROI and POT (ROI = 0.24, POT = 2.6), are very Abbreviations: CE, circular economy; FL, food loss; FW, food waste; HHV, higher heating value; LHV, lower heating value; POT, payout time; ROI, return on investment; SCG, spent coffee ground; GC, gas chromatograph.⁎ Corresponding author. E-mail address: email@example.com (A. Zabaniotou).https://doi.org/10.1016/j.scitotenv.2020.137316 0048-9697/© 2020 Elsevier B.V. All rights reserved. positive, suggesting pyrolysis of SCG as an efﬁcient circular economy management solution, providing an eco- social innovation business in the coffee shop industry, engaging also consumers in the circular economy.© 2020 Elsevier B.V. All rights reserved.
Keywords: Circular economy | Food wastes | Spent coffee grounds (SCG) | Pyrolysis: Economic study | Eco-social innovation