Lugo-Pimentel M, Leblanc E, Kelley S, Lavoie JM. Aspect elucidation of a physicochemical pretreatment for continuous decrystallization.
BIORESOURCE TECHNOLOGY 2023;
387:129591. [PMID:
37549714 DOI:
10.1016/j.biortech.2023.129591]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023]
Abstract
The purpose of this study is to understand the operating conditions of a physicochemical pretreatment process for lignocellulosic biomass using homogeneous acid catalysts. Four parameters were studied: moisture content, acid catalyst, type of biomass and reactor morphology. The different types of biomass (perennial grasses: sugarcane bagasse, corn stover; flowering plants: cannabis (stalks and leaves); hardwoods (pulp and bark): poplar, sugar maple; softwood bark) were processed in a meat grinder with sulfuric acid. Furthermore, softwood bark was used to change the moisture content, acid catalyst and reactor morphology. Biomass moisture above 17 wt% yielded less than 50 wt% glucose. Sulfuric acid, by far, had the best performance with a 74.5 wt% glucose yield in the meat grinder. The glucose yield showed a direct relationship with the non-carbohydrate components of biomass (lignin, ash, etc).
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