Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7043446 | Separation and Purification Technology | 2019 | 27 Pages |
Abstract
Production of lactic acid (LA) from lignocellulosic materials has become increasingly prominent in the market. However, for industrial scale to be reached, several challenges in second-generation lactic acid production must be overcome. Besides obstacles such as the hydrolysis process, one of the major challenges of the lactic acid industry is the separation and purification process. This study evaluates the separation of lactic acid produced from hemicellulose hydrolysate from sugarcane bagasse using a Hybrid Short Path Evaporation (HSPE) system. Results showed that a lactic acid concentration of 3.1 times the feed concentration (27.85â¯g/L) is achievable. Three operational parameters were studied: evaporator temperature, internal condenser temperature and feed flow rate. Maximum lactic acid concentration was 86.69â¯g/L with an evaporator temperature of 120â¯Â°C, condenser temperature of 13â¯Â°C, and feed flow rate of 8.27â¯mL/min. Separation of LA from hemicellulosic sugars using HSPE was a more difficult process than separation of LA from 6-carbon sugars.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Regiane Alves de Oliveira, Andrea Komesu, Carlos Eduardo Vaz Rossell, Maria Regina Wolf Maciel, Rubens Maciel Filho,