89 results about "PARTICLE SIZE REDUCTION" patented technology

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

A grinder having with a rotor and fan assembly mounted in a housing having one or more of the following features: Cutting shaft and fan shaft concentric and rotated by separate motors, housing formed in two sections with a line of division passing through the axis of rotation and mounted on rollers, ping pong shaped cutting hammers, deflectors attached to the inside of the housing and to a deflector assembly on the outside of the housing. The deflectors movable vertically and horizontally with first and second motion controllers for adjusting the spacing between the cutting hammers and the deflectors. A programmable logic controller for independently controlling the speed at which the cutting shaft and fan shaft are rotated and the spacing between the cutting hammers and the deflectors to produce a desired particle size reduction for a selected material.

A pyrolysis plant 20 comprises a grinding pyrolyser 22, being a machine or apparatus in which both particle size reduction and pyrolysis occur simultaneously. Plant 20 also comprises a bin (hopper) 30 for holding wet particulate biomass feedstock. Chute 32 leads from the bin 30 to a biomass dryer 34 which reduces moisture content of the feedstock as low as possible, e.g., to below about 10. Dried feedstock is conveyed from dryer 34 via line 36 to a dried biomass feedstock hopper 38. Dried feedstock is fed from hopper 38 into a chute 40 which leads to an inlet trunnion 42 of grinding pyrolyser 22. A discharge trunnion 44 of grinding pyrolyser 22 leads to a char holder 60 for collecting char particles and a condensation train 62 for condensing vapour generated by the pyrolysis to produce oil.

The present disclosure is directed to an in-liquid laser-based method for fabricating a solution of fine particles of amorphous solid medicinal compounds, a solution of fine particles of amorphous medicinal agents made with the method, and fine particles made with the method. By using a target solidified via a phase transition process to covert an initial crystalline structure into an amorphous solid, technical difficulties with handling a hydraulically-pressed target are overcome. The laser-based ablation process produces amorphous solid medicinal compound fine particles, which improves the bioavailability and solubility of the medicinal compound. The improvement results from a combination of: disordered crystalline structure and enlarged relative surface area by particle size reduction. The laser based method may be carried out with ultrashort pulsed laser systems, or with UV nanosecond lasers. Results obtained with an ultrashort near IR laser and a UV nanosecond laser show formation of amorphous solid curcumin fine particles.

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

A process in which cocoa polyphenol concentrate is obtained comprising the steps of: a) subjecting unfermented cocoa beans to a blanching step in water at a temperature in the range from 85-100 DEG C for a time period in the range from 3 to 15 minutes to give unfermented cocoa beans with reduced polyphenol oxidase activity; b) drying the unfermented cocoa beans with reduced polyphenol oxidase activity at a temperature of less than 85 DEG C to obtain dried unfermented cocoa beans with a moisture content of no more than 15%; c) subjecting the dried unfermented cocoa beans to a particle size reduction step to obtain dry unfermented cocoa bean intermediate whereby at least 99 wt% of the product has a particle size less than or equal to 300 m; e) extracting polyphenols from the dry unfermented cocoa bean intermediate to give a cocoa polyphenol extract and extracted solids; d) concentrating the cocoa polyphenol extract to yield a cocoa polyphenol concentrate; and wherein the process further includes a defatting step which is carried out prior to step d).

The invention discloses a preparation method of a super large lamella RGO loaded ultrafine beta-FeOOH nanometer particle lithium ion battery negative electrode material. The preparation method comprises following steps: oxidized graphene is dispersed in deionized water so as to obtain a suspending liquid A; a certain amount of a soluble salt, sodium chloride, and urea are added into absolute ethylalcohol and deionized water, and then are mixed with the suspending liquid A so as to obtain a suspending liquid B; the suspending liquid B is introduced into a homogeneous hydro-thermal reaction vessel, the homogeneous hydro-thermal reaction vessel is sealed, and is introduced into a homogeneous hydro-thermal reaction equipment for hydro-thermal reaction, and then natural cooling to room temperature is carried out so as to obtain a product C; the product C is washed with water and alcohol respectively; and after washing, the product is dispersed in water so as to obtain a product D; the product D is subjected to freeze-drying so as to obtain the super large lamella RGO loaded ultrafine beta-FeOOH nanometer particle lithium ion battery negative electrode material. According to the preparation method, graphene combination and particle size reduction are adopted to improve the performance of beta-FeOOH, so that more electrochemical active sites and ion transmission channels are provided, battery reversible capacity is increased, the reversible capacity at 5000mA g<-1> is larger than 1000mAh g<-1>, and the potential capacity of the super large lamella RGO loaded ultrafine beta-FeOOHnanometer particle lithium ion battery negative electrode material is excellent.

The invention belongs to the technical field of energy data prediction, and provides a gas flow data prediction method based on non-equal-length granularity characteristics. The method comprises the steps of firstly collecting the data based on a gas system, conducting the unequal-length fuzzy granulation on the data based on discrete change poles, showing the granulation form to comprise representative values and support upper and lower boundaries, wherein the particles represent vectors of the number of original data; secondly performing multi-dimensional density clustering based on weight change on the granulated data, and replacing granularity data in a time sequence with cluster division; thirdly designing a data prediction method based on the artificial neural network, performing model prediction by applying a time sequence result divided by a cluster, obtaining a corresponding weight value and a threshold value matrix, checking the accuracy of the weight value and the thresholdvalue matrix, and preparing for the following particle size reduction; and finally providing a particle size reduction method based on one-dimensional interpolation.