Process alternatives for bioethanol production from organosolv pretreatment using lignocellulosic biomass

Andrè Rodrigues Gurgel da Silva, Massimiliano Errico, Ben-Guang Rong

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

209 Downloads (Pure)

Abstract

Organosolv pretreatment makes use of ethanol as a solvent to remove lignin and render the cellulose and hemicellulose present in the biomass available for conversion. However, solvent recovery is a crucial step to make organosolv pretreatment a competitive and reliable alternative for second generation bioethanol production. We used Aspen Plus v8.0 to simulate an initial organosolv pretreatment case based on published experimental works and proposed 4 different alternatives for the solvent ethanol recovery. Total energy consumption, ethanol productivity, ethanol concentration after fermentation, capital costs, variable costs and minimum ethanol selling price (MESP) were evaluated for the selection of the best design for the process. Furthermore, energy targets were calculated for the scenarios to investigate the saving potentials in the variable costs and were accounted for new MESP calculations. Ethanol productivity and recovery was similar for all the cases evaluated. The capital cost calculated for the base case was 20.8 million dollars and the total energy consumption was 732 MW, with a MESP of 1.117 $/kg of ethanol. The best process alternative with energy integration obtained savings of almost 30 % in the MESP, totalizing 0.782 $/kg of ethanol and the total energy consumption was 488 MW.

Original languageEnglish
Title of host publicationChemical Engineering Transactions
EditorsSauro Pierucci, Jiří Jaromír Klemeš, Laura Piazza, Serafim Bakalis
Volume57
PublisherAIDIC
Publication date2017
Pages1-6
ISBN (Print)978-88-95608- 48-8
ISBN (Electronic)9788895608488
DOIs
Publication statusPublished - 2017
Event13th International Conference on Chemical and Process Engineering - Hotel Michelangelo,Piazza Luigi di Savoia, 6 , Milano, Italy
Duration: 28. May 201731. May 2017
Conference number: 13

Conference

Conference13th International Conference on Chemical and Process Engineering
Number13
LocationHotel Michelangelo,Piazza Luigi di Savoia, 6
CountryItaly
CityMilano
Period28/05/201731/05/2017
SeriesChemical engineering transactions
Volume57
ISSN1974-9791

Fingerprint Dive into the research topics of 'Process alternatives for bioethanol production from organosolv pretreatment using lignocellulosic biomass'. Together they form a unique fingerprint.

Cite this