A feedstock processing system extracts a product from a solid using a CTSE system comprising a plurality of continuous stirred tank extraction stages arranged in fluid communication with each other in series such that effluent from one stage flows to a next stage in the series. One of the stages has an inlet to allow a measured amount of liquid solvent and the solid to be introduced to the continuous stirred tank extraction stage. The stage mixes the solid with the introduced solvent to form a homogeneous slurry to enable the product associated with the solid to be extracted with the solvent. A solid-liquid separator is arranged in fluid communication with the continuous stirred tank extraction stages, and receives an effluent from one of the stages and separates the liquid solvent containing the product from the solid to form a product-containing liquid and a product-depleted solid.

According to the present invention, there is provided a cleaning system for biomass material handling systems and methods for such system. The cleaning system for a biomass material treatment stage in a continuous process system includes a hydrolysis or pre-hydrolysis reactor, a feeding arrangement is arranged to continuously feed biomass material to an inlet of the reactor, wherein reactor includes a reactor screw for moving the biomass material through the reactor and a discharge pipe including a discharge screw for continuously discharging treated biomass material. At least one high-pressure cleaning nozzle is arranged inside a housing of said reactor, wherein the at least one high-pressure cleaning nozzle is arranged to eject cleaning agent at predetermined intervals during operation of the reactor.

The present disclosure discloses a process for accelerating, increasing, and stabilizing production of biogas with a high methane content in systems for biodigestion of organic waste. The process comprises: a) obtaining from an anaerobic biodigester (3) a fraction of organic waste equal in weight to K times the weight of the daily organic waste load of the anaerobic biodigester (3), wherein the parameter K is a numeric value selected between 10.sup.−3 and 10.sup.−1, sending the fraction to one or more acceleration devices (4), retaining the fraction in the one or more acceleration devices (4) until a final concentration (Cf) of the methanogenic bacteria in the fraction is equal to M times an initial concentration (Ci), wherein the parameter M is a numeric value selected between 10.sup.3 and 10.sup.8; b) as soon as said final concentration (Cf) is obtained in the fraction, directing said fraction from the acceleration device (4) back to the anaerobic biodigester (3); and c) successively repeating steps a) and b).

A fuel production system 1 includes a gasification unit 3; an electrolysis unit 60 that is connected to a renewable power generating unit 5 and a commercial power grid 8 and produces hydrogen using electric power; and a control unit 7 that determines a power index that depending on the carbon dioxide emission intensity of the electric power supplied from the commercial power grid 8. When the remaining amount of hydrogen is smaller than a lower threshold, the control unit 7 causes electric power to be supplied to the electrolysis unit 60 from the renewable power generating unit 5 and the commercial power grid 8 for production of hydrogen, and controls, based on the power index, the amount of hydrogen supplied by a hydrogen supply pump 64 and the amount of commercial power supply from the commercial power grid 8 to the electrolysis unit 60.

A method for improving a biogas production is provided in which an organic substrate is pretreated by various methods. In particular, the method includes a combination of a magnetic and an enzymatic pretreatment of the substrate with an attractive specific energy gain. The application of a magnetic field induces changes in biological systems

Methods and systems for inhibiting the proliferation of pathogenic microorganisms on organic biomass waste products without the need for pasteurization are described. The methods and systems allow conversion of organic waste into nutrient-rich fertilizers in a safe and efficient manner.

The present invention provides a polyphenol composition comprising sugarcane bagasse and/or sugarcane vinasse. Methods of lowering the odour of the polyphenol composition using activated carbon. Methods of preparing the polyphenol composition following fermentation and distillation of a sugarcane derived product. Sugars and foods/beverages comprising the polyphenol composition and methods of preparing those.

The present invention provides a method of enhancing continuous directional high-value biological conversion of an urban wet garbage open system. The method includes wet garbage crushing, low-energy consumption hydrolysis, continuous conversion of organic components of wet garbage into short-chain fatty acid, continuous directional conversion of other components of short-chain fatty acid into acetic acid, separation and microbial reflux of acetic acid, and the like. In this method, by crushing wet garbage, performing low-energy consumption hydrolysis, and seeding acclimatized activated sludge, two stages of anaerobic fermentations are carried out to firstly convert organic components of the wet garbage continuously into short-chain fatty acid, and then continuously and directionally convert other components of short-chain fatty acid into acetic acid, so as to realize continuous directional high-value biological conversion of the urban wet garbage in an open system without adding pure microbes and a large amount of chemicals.

A process for the manufacture of a useful product from carbonaceous feedstock of fluctuating compositional characteristics, the process comprising the steps of: continuously providing the carbonaceous feedstock of fluctuating compositional characteristics to a gasification zone; gasifying the carbonaceous feedstock in the gasification zone to obtain raw synthesis gas; sequentially removing ammoniacal, sulphurous and carbon dioxide impurities from the raw synthesis gas to form desulphurised gas and recovering carbon dioxide in substantially pure form; converting at least a portion of the desulphurised synthesis gas to a useful product. Despite having selected a more energy intensive sub-process i.e. physical absorption for removal of acid gas impurities, the overall power requirement of the facility is lower on account of lower steam requirements and thereby leading to a decrease in the carbon intensity score for the facility.

A process for cleaning and beneficiating biomass is described which may allow removal of entrained salts and light volatiles from biomass materials. The process may also minimize energy use through capturing steam and flue gases for re-use. The process may generally comprise the following steps: prewashing and/or preheating a biomass, pressurizing the biomass in a steam explosion vessel, rapidly depressurizing the steam explosion vessel, releasing the steam from the steam explosion vessel entrained with fine lignin-enriched particles into a cyclone-type gas expansion vessel, routing the steam from the gas expansion vessel to the input hopper, subjecting the biomass to a second washing step, mechanically removing a portion of the water from the biomass, and evaporatively heating the biomass.