Back to results
US 12,415,894 B2Granted
Bitumen compositions comprising lignin
AssigneeNew Energy Blue LLC
InventorsDuy Michael Le, Mia Frosch Mogenbæk Foverskov
Life of this patent
Estimating the term…
Abstract
The current invention concerns composition comprising bitumen, one or more plasticity modifying agent(s), and lignin, as well as methods and uses related to such compositions. In particular, compositions are disclosed with improved properties, such as mixing properties.
Claims24
A process for obtaining a lignin, the process comprising:
- a. subjecting a lignocellulosic biomass to hydrothermal pretreatment resulting in a hydrothermally pretreated lignocellulosic biomass;
- b. following step (a), subjecting at least part of the hydrothermally pretreated lignocellulosic biomass obtained in step (a) to a hydrolysis resulting in a liquid fraction comprising soluble carbohydrates, and a fiber fraction comprising a lignin component, wherein the hydrolysis is an acid catalyzed hydrolysis and/or enzymatic hydrolysis;
- and
- c. optionally, following step (b), subjecting at least part of the liquid fraction obtained in step (b) to a fermentation in order to ferment at least part of the soluble carbohydrates to a fermentation product, thereby obtaining a fermentation broth;
- wherein the lignin has a Lignin Ion Exchange Capacity (LIEC) of 0.4 mol/kg dry matter (DM) or less.
2 more elements
Dependencies are inferred from the claim text.