A process for treatment of lignocellulosic biomasses with a process solvent selected from an eutectic solvent consisting of a hydrogen bond acceptor and of a hydrogen bond donor, an ionic liquid, and a mixture of the eutectic solvent and the ionic liquid, may include: A. mixing the biomasses with the process solvent and possibly separating insoluble cellulose residues and/or inorganic material; B. treating the possibly filtered process solvent solution from step A with water, thereby separating lignin; and C. separating hemicellulose from the mixture of the process solvent and possibly the water. Step C may be carried out by adding an organic solvent soluble in the process solvent and in the water, whereby hemicellulose precipitates and is subsequently separated with conventional techniques from a liquid phase comprising the process solvent, the organic solvent, and possibly the water.

A process for treatment of lignocellulosic biomasses with a process solvent selected from an eutectic solvent consisting of a hydrogen bond acceptor and of a hydrogen bond donor, an ionic liquid, and a mixture of the eutectic solvent and the ionic liquid, may include: A. mixing the biomasses with the process solvent and possibly separating insoluble cellulose residues and/or inorganic material; B. treating the possibly filtered process solvent solution from step A with water, thereby separating lignin; and C. separating hemicellulose from the mixture of the process solvent and possibly the water. Step C may be carried out by adding an organic solvent soluble in the process solvent and in the water, whereby hemicellulose precipitates and is subsequently separated with conventional techniques from a liquid phase comprising the process solvent, the organic solvent, and possibly the water.

Provided herein are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.

A biofuel composition and a process for the manufacture of a biofuel composition including lignin and ethanol as the main combustible components of the biofuel composition and having total ash below 1% w/w based on total mass of dry matter in the biofuel composition.

This disclosure pertains to the use of black liquors from kraft pulp mills as a source of catalysts for the thermochemical conversion of organic matter feedstocks to bio oils. More particularly, some embodiments pertain to integrated kraft pulp mill and thermochemical conversion systems, which include: a Kraft pulp mill comprising a digester for digesting a lignocellulosic material with white liquor to produce pulp and black liquors; a thermochemical conversion subsystem comprising: at least one mixing tank for combining pulping liquors received from the pulp mill with an organic matter feedstock and water to produce a reaction mixture; a reactor vessel for treating the reaction mixture received from the mixing tank at a reaction temperature and pressure suitable for conversion of all or a portion of the organic matter in the reaction mixture into a product mixture comprising a bioproduct and an aqueous stream containing both organic and inorganic compounds; and a depressurizer for depressurizing product mixture received from the reactor vessel; and one or more conveyors for conveying the pulping liquors from the pulp mill to the mixing tank.

This disclosure pertains to the use of black liquors from kraft pulp mills as a source of catalysts for the thermochemical conversion of organic matter feedstocks to bio oils. More particularly, some embodiments pertain to integrated kraft pulp mill and thermochemical conversion systems, which include: a Kraft pulp mill comprising a digester for digesting a lignocellulosic material with white liquor to produce pulp and black liquors; a thermochemical conversion subsystem comprising: at least one mixing tank for combining pulping liquors received from the pulp mill with an organic matter feedstock and water to produce a reaction mixture; a reactor vessel for treating the reaction mixture received from the mixing tank at a reaction temperature and pressure suitable for conversion of all or a portion of the organic matter in the reaction mixture into a product mixture comprising a bioproduct and an aqueous stream containing both organic and inorganic compounds; and a depressurizer for depressurizing product mixture received from the reactor vessel; and one or more conveyors for conveying the pulping liquors from the pulp mill to the mixing tank.

The invention is directed to compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.

The invention is directed to compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.

The invention is directed to compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.

The invention is directed to compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.