{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T08:48:46Z","timestamp":1778575726991,"version":"3.51.4"},"reference-count":150,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,5,19]],"date-time":"2023-05-19T00:00:00Z","timestamp":1684454400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"the Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia, I.P. (Portuguese Foundation for Science and Technology)","doi-asserted-by":"publisher","award":["UIDB\/05064\/2020"],"award-info":[{"award-number":["UIDB\/05064\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"the Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia, I.P. (Portuguese Foundation for Science and Technology)","doi-asserted-by":"publisher","award":["ALT20\u201305\u20133559\u2013FSE\u2013000035"],"award-info":[{"award-number":["ALT20\u201305\u20133559\u2013FSE\u2013000035"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the Regional Operational Program of Alentejo (Alentejo2020)","award":["UIDB\/05064\/2020"],"award-info":[{"award-number":["UIDB\/05064\/2020"]}]},{"name":"the Regional Operational Program of Alentejo (Alentejo2020)","award":["ALT20\u201305\u20133559\u2013FSE\u2013000035"],"award-info":[{"award-number":["ALT20\u201305\u20133559\u2013FSE\u2013000035"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Recycling"],"abstract":"<jats:p>During recent years, gasification technology has gained a high potential and attractiveness to convert biomass and other solid wastes into a valuable syngas for energy production or synthesis of new biofuels. The implementation of real gasification facilities implies a good insight of all expenses that are involved, namely investments required in equipment during the project and construction phases (capital expenditures, CapEx) and costs linked to the operation of the plant, or periodic maintenance interventions (operational expenditures, OpEx) or costs related to operations required for an efficient and sustainable performance of a gasification plant (e.g., feedstock pre-treatment and management of by-products). Knowledge of these economic parameters and their corresponding trends over time may help decision-makers to make adequate choices regarding the eligible technologies and to perform comparisons with other conventional scenarios. The present work aims to provide an overview on CapEx associated with gasification technologies devoted to convert biomass or solid waste sources, with a view of reducing the carbon footprint during energy generation or production of new energy carriers. In addition, an analysis of technology cost trends over time using regression methods is also presented, as well as an evaluation of specific capital investments according to the amount of output products generated for different gasification facilities. The novelty of this work is focused on an analysis of CapEx of existing gasification technologies to obtain distinct products (energy and fuels), and to determine mathematical correlations relating technology costs with time and product output. For these purposes, a survey of data and categorization of gasification plants based on the final products was made, and mathematical regression methods were used to obtain the correlations, with a statistical analysis (coefficient of determination) for validation. Specific investments on liquid biofuel production plants exhibited the highest decreasing trend over time, while electricity production became the least attractive solution. Linear correlations of specific investment versus time fitted better for electricity production plants (R2 = 0.67), while those relating the product output were better for liquid biofuel plants through exponential regressions (R2 = 0.65).<\/jats:p>","DOI":"10.3390\/recycling8030049","type":"journal-article","created":{"date-parts":[[2023,5,19]],"date-time":"2023-05-19T00:55:29Z","timestamp":1684457729000},"page":"49","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":52,"title":["Costs of Gasification Technologies for Energy and Fuel Production: Overview, Analysis, and Numerical Estimation"],"prefix":"10.3390","volume":"8","author":[{"given":"Gon\u00e7alo","family":"Lourinho","sequence":"first","affiliation":[{"name":"CoLAB BIOREF\u2014Collaborative Laboratory for Biorefineries, 4466-901 S\u00e3o Mamede de Infesta, Portugal"},{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]},{"given":"Oct\u00e1vio","family":"Alves","sequence":"additional","affiliation":[{"name":"CoLAB BIOREF\u2014Collaborative Laboratory for Biorefineries, 4466-901 S\u00e3o Mamede de Infesta, Portugal"},{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]},{"given":"Bruno","family":"Garcia","sequence":"additional","affiliation":[{"name":"CoLAB BIOREF\u2014Collaborative Laboratory for Biorefineries, 4466-901 S\u00e3o Mamede de Infesta, Portugal"}]},{"given":"Bruna","family":"Rijo","sequence":"additional","affiliation":[{"name":"CoLAB BIOREF\u2014Collaborative Laboratory for Biorefineries, 4466-901 S\u00e3o Mamede de Infesta, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2581-4460","authenticated-orcid":false,"given":"Paulo","family":"Brito","sequence":"additional","affiliation":[{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5733-902X","authenticated-orcid":false,"given":"Catarina","family":"Nobre","sequence":"additional","affiliation":[{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,19]]},"reference":[{"key":"ref_1","unstructured":"European Commission (2023, May 16). 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