6 results about "Chemical transformation" patented technology

This invention discloses a deep learning-based method for VOCs pollution feature analysis and source tracing. The method includes acquiring online monitoring time-series data of VOCs and synchronous meteorological parameters of the monitoring area, constructing a multidimensional input tensor after preprocessing, building a deep neural network model containing a spatiotemporal feature extraction module and a source apportionment regression module, extracting nonlinear chemical coupling features and temporal evolution features between VOCs components using a one-dimensional convolutional neural network and a bidirectional long short-term memory network, and weighting and fusing them using meteorological parameters, and finally decoding and outputting the source component spectrum and temporal contribution rate that conform to physical constraints through the source apportionment regression module to generate a pollution feature map. This invention effectively solves the problem that traditional receptor models struggle to handle nonlinear chemical transformations and complex meteorological couplings, improves the accuracy and physical interpretability of VOCs pollution source tracing, and has online update capabilities to adapt to environmental changes.

The invention relates to a system and process for thermo-chemical transformation of mixed wet waste streams using a rotary kiln reactor equipped with a multi-annular concentric feed assembly. A central conduit introduces wet food waste mixed with plastics, biodegradable packaging, and fluorinated materials, while an intermediate annulus supplies auxiliary fuel and an outer annulus delivers oxidant gas under controlled sub-stoichiometric conditions. The kiln operates through sequential zones of reduction, partial oxidation, and complete oxidation to convert organics into hydrogen, carbon monoxide, methane, and finally carbon dioxide and water. Halogens and sulfur compounds are converted to hydrogen halides and hydrogen sulfide, which are neutralized downstream with calcium oxide to form stable salts. Heat recovery from the flue gas produces steam or hot water. The process eliminates pre-drying, allows co-processing of wet and dry wastes, and provides efficient energy recovery in a compact, scalable configuration. The invention eliminates the need for pre-drying or segregation, enabling simultaneous treatment of heterogeneous feedstocks.

Method for manufacturing a printed circuit board with a metallic conductor structure (109, 119) comprising the steps a. Provision of a base substrate (101) formed as a film or plate with a first substrate side (101a) and a second substrate side, which consists at least partially of an electrically non-conductive organic polymer material and in which the first substrate side (101a) is covered with a cover metal layer (102), and b. partial removal of the top metal layer (102), where the top metal layer is removed in sections (102) c. a mask layer (103) is applied to the top metal layer (102), d. the mask layer (103) is removed in sections, so that the first substrate side (101a) is divided into at least one first sub-area (104) in which the first substrate side (101a) is covered only with the cover metal layer (102), and into at least one second sub-area (105) in which the first substrate side (101a) is covered with the cover metal layer (102) and by the mask layer (103), and e. the cover metal layer (102) in which at least one first sub-area (104) is removed, characterized by the fact that f. the mask layer (103) in the first sub-area (104) is removed by an etching treatment using an etching solution and prior to the etching treatment to remove the mask layer (103) in the first sub-area (104) a phase transformation or a chemical transformation is effected in the mask layer (103), wherein the mask layer (103) consists of an inorganic semiconductor or a compound of an inorganic semiconductor or of a polymer material which can assume at least a partially crystalline state and an amorphous state.

This application relates to the field of biomass material processing technology and discloses a method for preparing bio-based materials based on rose fibers. The method includes: mixing rose biomass powder, a reactive modifier system composed of choline chloride, anhydrous citric acid, and zinc acetate dihydrate, and deionized water to obtain a premix; subjecting the premix to a first-stage low-temperature thermal induction at 70-95°C to promote the chemical transformation of the epidermal stratum corneum; subsequently raising the temperature to 110-150°C for a second-stage high-temperature in-situ reaction to construct a metal coordination crosslinking network; and finally obtaining the product through cooling, pulverization, and hot pressing. This invention, through a graded temperature control process, utilizes in-situ generated fatty acid metal soaps for internal lubrication and metal ion coordination bonds for reinforcement, solving the problems of difficult processing, low strength, and poor water resistance of rose waste. The resulting material exhibits excellent thermoplastic processing properties, mechanical strength, and hydrophobicity.