88 results about "Biolipid" patented technology

This invention relates to methods and devices for the production of micro-structured substrates and their application in natural sciences and technology, in particular in analysis and detection systems based on artificial and biological lipid membranes. The structure is preferably a hole or a cavity or channel and is obtained by spark perforation. Energy, preferably heat, is applied to the region to be structured so as to reduce the amplitude of voltage required and/or soften the material. The electrical parameters of the spark perforation are feedback-controlled.

A method for producing fatty acid alkyl esters from biolipids through transesterification and/or esterification reactions uses a flow-through cavitation device for generating cavitation bubbles in a fluidic reaction medium. The fluidic medium is passed through sequential compartments in the cavitation device having varying diameters and inner surface features to create localized reductions in fluid pressure thus vaporizing volatile alcohols and creating an increased surface area and optimized conditions for the reaction to occur at the gas-liquid interface around the bubbles.

A process for preparing biological ester/cellulose acetate composite membrane for sampling the toxic organic pollutants in environment monitor and removing them from water includes such steps as dissolving the cellulose acetate in solvent, adding biological ester, and preparing membrane by the L-S phase transfer method. The membrane contains cellulose acetate, dioxane, acetone, magnesium perchlorate, and neutral ester in a certain proportion.

The invention belongs to the technical filed of ionic liquid catalysis preparation of biodiesel and particularly relates to a method for catalyzing phosphotungstic acid ionic liquid to prepare biodiesel. The method comprises the following steps: by taking biolipid and methanol as raw materials, taking a phosphotungstic acid ionic fluid as a catalyst to prepare the biodiesel by virtue of ether exchange reaction, wherein a molar ratio of the biolipid to the methanol is (1:20) to (1:50), the ionic liquid accounts for 1-10% of the mass of the biolipid, the reaction temperature is 45-64 DEG C and the reaction time is 3-11 hours. The method has the following advantages that firstly, the ionic liquid is simple in preparation process and relatively low in cost; secondly, the catalyst is high in activity, less in dosage, gentle in reaction condition and short in reaction time; and thirdly, the ionic liquid is stable in performance, capable of being repeatedly used, simple in separating process, low in after-treatment cost, free of pollution, free of corrosion on equipment, environmentally friendly, and capable of being expected to become a clean process route with competitive force.

The non-invasive biolipid concentration meter comprises: an irradiator (2) that emits light at a given intensity toward the inside of a living body from outside; a light intensity detector (3) that is disposed at a given distance from a position (21) irradiated with the light from the irradiator (2) and that determines the intensity of light emitted from the living body; a scattering coefficient calculator (4) that calculates the coefficient of light scattering within the living body on the basis of the light intensity determined with the light intensity detector (3); and a lipid concentration calculator (5) that calculates the lipid concentration in the living body on the basis of the coefficient of light scattering.

The invention discloses a method and a culture device for coupling biogas fermentation with microalgae culture. The method comprises the following steps: carrying out biogas fermentation to obtain biogas and biogas slurry; filtering the biogas slurry to remove solid granules, diluting the biogas slurry to serve as a microalgae culture medium, filling the diluted biogas slurry in a microalgae culture reactor to serve as the microalgae culture medium, filling the bottom of the microalgae culture solution in the microalgae culture reactor with biogas to serve as a carbon source, culturing under a light condition, and drying and removing water vapor from the biogas flowing out from the microalgae culture reactor for use; when harvesting the microalgae, dewatering to obtain microalgae sludge and culture solution, extracting biolipid, phycocyanin and other products with high added values from the microalgae sludge, and carrying out biogas fermentation on the residual microalgae residues and the culture solution in a biogas digester as biogas fermentation materials. The entire process of the method disclosed by the invention is driven by the solar energy, and carbon, nitrogen, phosphorus and other microelements are recycled, thereby satisfying the requirements of green energy source and sustainable development.

The invention relates to a method for preparing a light olefin by adopting biolipid. The method comprises: (1) under a hydrogenation reaction condition, carrying out a reaction of a mixed material comprising biolipid and hydrogen in the presence of a hydrogenation catalyst in a hydrogenation reactor, and separating the oil phase from the reaction products; (2) under a catalytic cracking condition, carrying out a reaction of the resulting oil phase from the step (1) in the presence of a catalytic cracking catalyst in a catalytic cracking reactor, and separating the resulting reaction mixture to obtain the light olefin, light oil and heavy oil, wherein the resulting oil phase from the step (1) is adopted as the catalytic cracking raw material. The used biolipid contains an unsaturated fatty acid ester and/or an unsaturated fatty acid. With the method of the present invention, the yield of the light olefin can be significantly improved.

The invention provides a method for preparing biodiesel by biological-chemical catalytic coupling. Fatty acid or biolipid, such as plant oil, animal oil, waste cooking oil and the like is used as raw materials for biological catalysis reaction with lipase as catalyst in a stirred or fixed reactor, is balanced for chemical catalysis reaction with sulfuric acid or solid acid as catalyst to finally obtain reaction liquid containing 97% to 99% of fatty acid methyl ester, and is separated to obtain the biodiesel product. The technique disclosed by the invention is a environment-friendly biodiesel production technique; compared with the original biodiesel production technique, the biological-chemical catalytic coupling preparation technique originated by the invention has the features of wide raw material adaptation range, convenience for process operation, low raw material consumption, high product conversion rate, low production cost, strong environmental friendliness and the like.

The invention relates to a biological alcohol ether fuel. The biological alcohol ether fuel is totally free from fossil fuel, prepared by combining the biological alcohol ether resource or coal chemical industry alcohol ether resource and biological fatty oil and can replace gasoline, diesel oil, boiler fuel oil and oil for ships. 50-70% of methanol (or ethanol), 20-40% of dimethyl ether (or diethyl ether, methylal and the like), 3-7% of IPB (or isopropanol), 1.27-7.27% of normal butanol, 0.09-0.11% of castor oil, 0.1-0.3% of rape seed oil, 0.005-0.015% of pentafluoride butane, 0.01-0.03% of ferrocene, 200.2-200.6% of tween are added to a pressure vessel and evenly mixed to form a basic alcohol ether fuel, the basic alcohol ether fuel is used as the main raw material to be further blended into the biological alcohol ether fuel which can replace gasoline and diesel oil for vehicles, the boiler fuel oil and the oil for ships according to different uses. The biological alcohol ether fuel is a low-carbon oxygen-containing fuel which features clean combustion gas and obviously reduced soot.

The invention provides preparing of Ni2P/Zr-MCM-41 catalyst and application for preparing biofuel by catalyzed biolipid. A preparing method comprises: preparing a Zr-MCM-41 carrier, then weighing nickel nitrate and diammonium hydrogen phosphate with a molar weight of Ni to P, preparing into a solution, then adsorbing the solution with the carrier, taking out, and roasting to obtain a precursor; rising temperature of the precursor to 250 DEG C at 10 DEG C/min in hydrogen, then rising to 350 DEG C at 5 DEG C/min, then rising to 450-650 DEG C at 1 DEG C /min, keeping for 2h, finally cooling to room temperature, and performing passivation for 2h in low O2 concentration to obtain the catalyst. The method is simple and easy to realize, the catalyst is low in price, the hydrodeoxygenation efficiency is high, hydrodeoxygenation of manioca oil can be better catalyzed, the biofuel is high in straight-chain paraffin content, main components are petroleum diesel and aviation kerosene, the calorific value is high, the stability is high and the catalyst has very high industrial application prospect.

The present invention discloses the preparation process of composite adsorbent comprising active carbon, biolipid and polymer membrane, and belongs to the field of water processing technology application. The preparation process of the adsorbent includes the following main steps: 1. dissolving biolipid and polymer material in acetone, adding certain amount of additive, and supersonic dispersing to form homogeneous filming liquid; and 2. painting the filming liquid onto active carbon with vacuum suction filtering device and drying the coated adsorbent to volatilize acetone and other organic solvent. The composite adsorbent of the present invention has excellent effect of eliminating persistent organism in very low concentration from water, especially drinking water.

The invention relates to a hydrogenation combination method for producing low-condensation-point diesel oil. The hydrogenation combination method comprises the steps that firstly, under the condition of hydrogenation, biolipid and recycle hydrogen are mixed and pass through a hydrotreating reaction zone, the raw diesel oil and the recycle hydrogen are mixed and pass through a hydrofining reaction zone, the liquid obtained by separating a hydrotreating generated material flow and the liquid obtained by separating a hydrofining product are mixed and then enter a hydro-upgrading reaction zone at least comprising hydrogenation catalysts with isomerization performance, and the liquid obtained by separating a hydro-upgrading generated material flow is continuously fractionated, thus obtaining naphtha and high-quality low-condensation-point diesel oil products, wherein in the reaction state, the hydrogenation active components of the hydrogenation catalysts used in the hydrotreating reaction zone are Pt and/or Pd in the reduction state. Compared with the prior art, the method has the advantages that not only can the storage stability of the biolipid as fuel oil be effectively improved but also the high-quality low-condensation-point clean diesel oil can be directly produced.

The invention discloses a method of collecting chlorella cultured in pig farm waste water, and belongs to the field of microorganism culture and collection. The chlorella 34-2 the accession number of which is CGMCC NO.9225 can grow and produce biolipid by utilizing the pig farm waste water. After the chlorella is cultured in the pig farm waste water, through adjusting the pH value and adding iron trichloride, chlorella cells growing in the waste water can be flocculated, and the chlorella can be effectively collected. The method is simple in operation and low in cost, overcomes a restriction that a flocculation technique can only be used for collecting the chlorella in culture media, greatly reduces the collection cost, increases the collecting efficiency and has good economic benefit.

The invention discloses an on-site treating technology for waste biolipid. The on-site treating technology is applicable to on-site treatment on waste biolipid. The technology comprises the steps thatwaste biolipid is collected on site and fed into an integrated coupling reactor, accessory materials are added, and a powder state washing agent is generated through a one-time reaction. According tothe technology, the process is simple, the cost is low, the occupied area is small, the reaction period is short, and the washing agent can be generated on site.

The invention provides a polyurethane adhesive composition and a polyurethane adhesive. The polyurethane adhesive composition comprises a component A and a component B; the component A comprises, in percentage by weight, 20-70 wt.% of one or more biolipid modified polyols; the component B comprises, in percentage by weight, 50-90 wt.% of one or more polyurethane prepolymers; the polyurethane prepolymer is an isocyanate-terminated product obtained by reaction of an isocyanate monomer compound and a polyol compound; the isocyanate monomer is selected from any one of an aromatic cyanate compoundand an aliphatic isocyanate compound, and the polyol compound is selected from any one of hydroxyl-terminated polybutadiene, dimer acid modified polyol, biolipid modified polyol and bisphenol A modified polyether polyol. The polyurethane adhesive composition disclosed by the invention can form relatively high initial strength within a relatively short time under the condition of not needing heating, and has enough mechanical strength and bonding stability.

The invention discloses a method for preparing biodiesel from biolipid and relates to the field of renewable new energy sources. The method comprises the three steps of (1) preprocessing the raw material biolipid; (2) carrying out an ester exchange reaction under the conditions that the mol ratio of the standard raw material lipid to dimethyl carbonate is 1: (3-9), the dosage of a solid alkali catalyst is 0.01-0.2% of the mass of the standard raw material lipid, the reaction temperature ranges from 250 to 300 DEG C, the reaction pressure ranges from 2 to 5 MPa and the reaction time is 8 to 30 minutes; (3) decoloring the crude diesel. The method solves the problem of glycerol excess in the production of the biodiesel with a short-chain alcohol as an ester-exchange reagent and also realizes the production possibility that the reaction yield is higher than 90% under the condition of a low ester-oil ratio; the obtained by-products can be directly used without being separated subsequently; the color of the prepared biodiesel can be between standard color solutions No. Y5 and No. Y6; in short, the method is a new green and environment-friendly method for preparing the biodiesel from the biolipid.

The invention discloses a method for producing fatty acid by mixing and fermenting oil-producing yeast and bacillus to degrade lignocellulose. The method comprises the following steps: grinding straws or wood chips into fine granules, then treating the ground lignocellulose raw materials with dilute alkali, so as to be thoroughly dissolved; centrifuging cultured bacillus and washing twice with normal saline so as to entirely removal carbon source compositions, transferring to a lignocellulose-containing fermentation culture medium for culturing for 96-144h; inoculating the oil-producing yeast to the fermentation culture medium for continuing fermentation for 96-144h after culturing for 96h; after the culturing is over, centrifuging and collecting cells, breaking walls to extract biolipid. The method has the advantages that compared with other technologies, microbial lipid can be produced under low energy consumption through the research, and the sources of raw materials can be increased.

The invention discloses a high-efficiency lipase degreasing agent, which is a mixed liquid prepared from the following components. Polyoxyalkyl ether 4.0-5.0g, fatty alcohol polyoxyethylene ether 3.0-4.0g, sodium lauryl sulfate 2.0-4.0g, disodium edetate 0.1-0.12g, alkaline biological lipase 1 -2g, the remaining ingredients are water. When the high-efficiency lipase degreasing agent of the present invention degreases metal parts, the adsorption of the active agent and the metal body is reduced, the subsequent processing of the metal is facilitated, and at the same time, the degreasing is fast, the degreasing time is shortened, and the working efficiency is improved.

The invention discloses a preparation method of binary primary alcohol with adjustable molecular weight for bio-based polyurethane. Firstly, bio-based fatty acid ester containing alpha-hydrogen atoms is used as a raw material and subjected to Claisen condensation reaction in the presence of a basic catalyst and a solvent, and beta-keto ester with the molecular weight increased by one time is obtained. And then, by introducing the primary hydroxyl group into beta-keto ester and further prolonging a carbon chain under ultraviolet irradiation by utilizing a thiol-ene click reaction, the bio-based binary primary alcohol with adjustable molecular weight, a long main chain and a short side chain is obtained. The bio-based binary primary alcohol is prepared by using the natural vegetable oil derivative fatty acid ester instead of a petroleum-based monomer as a raw material, has the advantages of reproducibility, easiness in degradation and the like, and can be widely applied to manufacturing of polyurethane for leather, synthetic leather, textiles, plastics, rubber, building materials and coatings.