34 results about "Bioasphalt" patented technology

The invention provides a method for preparing biological asphalt from lignocellulose biomass hydrothermal carbon. Hydrothermal carbon is prepared from lignocellulose biomass by utilizing a hydrothermal carbonization technology, and then the hydrothermal carbon is combined with matrix asphalt to prepare the biological asphalt. The biomass comprises corn straw, rice straw or wheat straw and the like. In the reaction process, a mixture of biomass and water is subjected to hydrothermal carbonization at a certain temperature and under a certain pressure to form the hydrothermal carbon, and the hydrothermal carbon is combined with asphalt through high-speed shearing to prepare the biological asphalt. The method is simple in process, a hydrothermal carbon modifier is well combined with the asphalt, the high-temperature performances of the asphalt are improved, and the novel and sustainable method is provided for improvement of an asphalt material and utilization of biomass resources.

The invention relates to the technical field of preparation of road paving materials, and particularly discloses a modified biological asphalt and a preparation method thereof. The modified biologicalasphalt is prepared from biological asphalt, biochar, rubber powder and a mixed solution of hydrogen peroxide and alcohol, the viscosity of the biological asphalt is reduced through synergistic cooperation of the raw materials in a specific proportion; the high-temperature stability and pavement performance of the biological asphalt are improved, the comprehensive quality of the biological asphalt is improved, the biological asphalt can partially or completely replace pavement petroleum asphalt, the dependence on petroleum resources is reduced, the pressure caused by shortage of petroleum resources is relieved, meanwhile, the biological asphalt belongs to renewable resources, and sustainable development of highway traffic infrastructure construction can be realized.

The invention discloses a chemical synthesis method of biological asphalt for roads, relates to a preparation method of biological asphalt for roads, and aims to solve the problem of poor use performance of existing biological asphalt. The chemical synthesis method comprises the following steps: 1, mixing bio-oil and an organic solvent according to a mass ratio of 1:1-3, and stirring the substances uniformly to completely dissolve the bio-oil in the organic solvent to obtain a bio-oil solution; 2, adding an initiator into the bio-oil solution to obtain a mixed solution; 3, adding an accelerantsolution into the mixed solution, and stirring the substances uniformly to obtain a reaction solution; and 4, carrying out reaction for 2-8h at a temperature of 85-130DEG C to obtain the biological asphalt for roads. According to the invention, the initiator and the accelerant are added to realize free radical polymerization of the bio-oil with a small molecular weight into long-chain molecules,so that the viscosity of the bio-oil and the adhesiveness between the bio-oil and mineral aggregates are increased, the synthesis process is simple, and the prepared bio-asphalt meets the use performance of asphalt for roads.

The invention discloses a self-adhesive modified asphalt coating material, a preparation method thereof and a modified asphalt waterproof coiled material. The self-adhesive modified asphalt coating material includes: 20-70 parts by weight of high-grade petroleum asphalt, 5-30 parts by weight of polymer modifier, 5-30 parts by weight of rubber powder, 5-40 parts by weight of filler, 5 parts by weight of bio-asphalt ‑50 parts by weight; the high-grade petroleum asphalt is selected from at least one of the 110‑200# petroleum asphalt; the source of the biological asphalt is a plant resource. The invention can significantly improve the initial tack at low temperature and normal temperature; can significantly improve the bonding performance of self-adhesive bitumen waterproof membrane; can improve heat resistance; after thermal aging, the bonding performance can be kept significantly improved, and the Due to its good adhesion to the base layer, the failure mode is cohesive failure.

The invention discloses a sludge biological asphalt and a preparation method thereof. The preparation method comprises the following steps: (1) adding dried sludge and alcohol in a weight ratio of 1: (10-20) into a reaction kettle, stirring and heating, reacting for 30-120 minutes under the conditions that the reaction temperature is 265-300 DEG C and the reaction pressure is 5-11 MPa, and cooling to obtain a reaction mixture; (2) carrying out solid-liquid separation on the reaction mixture to obtain a solid and a mother solution; (3) concentrating the mother solution to obtain sludge heavy oil; (4) mixing the sludge heavy oil with petroleum asphalt to obtain sludge biological asphalt; wherein the weight ratio of the sludge heavy oil to the petroleum asphalt is (5-30): (70-95). The sludge biological asphalt prepared by the preparation method disclosed by the invention is relatively good in performance.

The invention relates to highway pavement materials, and discloses to swill-cooked dirty oil based modified biological asphalt, a biological asphalt mixture and a preparation method thereof. The modified biological asphalt material comprises the following components in percentage by mass: 33.3-38% of swill-cooked dirty oil residues, 28.6-33.8% of hard asphalt particles, 26.5-34% of resin, 1.2-4.6% of low-density polyethylene (LDPE) reprocessed plastics, and 3-5% of linear SBS (Styrene Butadiene Styrene). The preparation method comprises the following steps: heating the swill-cooked dirty oil residues to be 170 DEG C; uniformly adding the hard asphalt particles; stirring for 30 minutes; shearing for 45 minutes (4000r / min) until the swill-cooked dirty oil residues and the hard asphalt particles are uniformly compatible; uniformly adding the resin; stirring for 60 minutes until the mixture is uniform; cooling until the temperature reaches 155 DEG C; adding SBS and LDPE; continuously stirring and swelling for 40 minutes; shearing for 50 minutes (increasing the temperature to be 170 DEG C, shearing at the speed of 4000r / min); and then stirring to develop for 15 minutes (decreasing the temperature to be 155 DEG C). According to the method, a novel method for directly utilizing the residues obtained after extracting biodiesel from waste grease and reprocessed plastics is provided, and thus a new way is developed for energy conservation and waste recycling.

The invention relates to an environment-friendly warm-mix asphalt rejuvenator and a preparation method thereof. The invention belongs to the field of road engineering and aims to solve the problems of poor diffusion effect of existing asphalt rejuvenator materials and high mixing temperature. Preparation method: 1. Weigh bio-asphalt, epoxidized soybean oil, curing agent, straw fiber and epoxy resin as raw materials; 2. Put bio-asphalt in the raw material in a reactor, add curing agent, Stir evenly at high temperature to obtain a mixture, add epoxidized soybean oil in the raw material, stir at a temperature of 50-60°C, add straw fiber, and continue stirring at a temperature of 50-60°C to obtain an effective component of the regenerant; The effective components of the agent are mixed with the epoxy resin in the raw material. The invention adopts bio-asphalt and other effective components to restore the performance of aged asphalt, enhances the diffusion effect through epoxy soybean oil, and realizes the warm-mix production of recycled asphalt mixture, and the production process is simple and energy-saving.

The invention relates to a highway environment-friendly epoxy biological asphalt material and a preparation method thereof, in particular to an epoxy biological asphalt material to repair a pavement and a preparation method thereof in order to solve the problem that existing biological asphalt materials have difficulty in balancing high- and low-temperature properties. The highway environment-friendly epoxy biological asphalt material is made from, by weight, 100 parts of biological asphalt, 35-60 parts of a curing agent, 1-2 parts of a strong base, 0.5-1 part of a defoaming agent, and 20-34 parts of epoxy resin. The preparation method includes: I, mixing the biological asphalt, the curing agent, the strong base and the defoaming agent to obtain biological asphalt mixture; II, mixing the epoxy resin with the biological asphalt mixture. The combination of the biological asphalt with the epoxy resin herein can balance the high- and low-temperature properties; the cured cross-linked epoxyresin is used to improve the high-temperature performance; the biological asphalt is used to fill the epoxy resin to provide toughening and to improve low-temperature performance; the curing time ofthe combination is well controlled, so that quick pavement repairing is achieved.

The invention discloses a sawdust biomass fuel, which comprises the following raw materials in parts by weight: 60 parts of wood chips, 14 parts of additives, 6 parts of attapulgite powder, 4 parts of rare earth minerals, 2 parts of oxygen enhancer, and 0.3 parts of oxygen increase synergist , 8 parts of biological asphalt, 3.5 parts of blue-green algae mud, 1.5 parts of ammonium sulfate, and the auxiliary agent is polyanionic cellulose. The wood chip biomass fuel prepared by the present invention has high combustion efficiency, good stability, is not easy to be oxidized, can be fully burned, and can reduce the generation of harmful gases. The optimal ratio is obtained, and then the wood chip biomass fuel has the best performance, high use value and good application prospect.

The invention discloses anti-freezing environment-friendly diluted asphalt and a preparation method thereof. The anti-freezing environment-friendly diluted asphalt is prepared from the following raw materials in parts by weight: 50 to 80 parts of petroleum asphalt, 12 to 35 parts of biological asphalt, 10 to 26 parts of a modifier, 3 to 12 parts of a stabilizer, 25 to 58 parts of a diluent, 14 to25 parts of an inorganic filler calcium carbonate, 14 to 25 parts of glass fibers, 6 to 20 parts of a hydrophobic anti-freezing agent and 8 to 21 parts of shale ceramsite. The anti-freezing environment-friendly diluted asphalt of the invention solves the problems of weak high-temperature performance and strong temperature sensitivity of existing biological asphalt, high price of traditional road asphalt and the like in the prior art, has excellent high / low temperature resistance, skid resistance, wear resistance and aging resistance, does not flow at high temperature, has improved flexibilityat low temperature and favorable ductility, and can effectively overcome the problem that traditional diluted asphalt is easily limited by seasons, weather and temperature in the construction process.

The invention belongs to the technical field of biological asphalt, and particularly relates to high-temperature cracking equipment for a biological asphalt material. Aiming at the problems of low heat efficiency and high energy consumption, the high-temperature cracking equipment comprises a lower tray, a furnace body main body structure is arranged on the outer wall of the top of the lower tray, and brackets are arranged at four corners of the bottom end of the lower tray; and the furnace body structure comprises an upper furnace body, a lower furnace body, a shell and a furnace cover, a heat insulation plate is arranged between the upper furnace body and the lower furnace body, the shell is connected to the outer wall of the upper furnace body and the outer wall of the lower furnace body in a sleeving mode, and heat insulation layers are arranged between the shell and the upper furnace body and between the shell and the lower furnace body. The vertical structure is adopted, the funnel-shaped heavy material liquid separation hopper enables heavy materials to be layered through the temperature difference from bottom to top, the lower sphere is evenly heated through the burners on the four sides, heat conduction is fast, heating is even, the waste heat recovery structure is used for maintaining layering of the heavy materials, heavy material separation is clearer, and it is guaranteed that heat efficiency is improved, and energy consumption is reduced.

The invention discloses high-value utilization of wood-based biomass and application of the wood-based biomass in preparation of biological asphalt. According to the method, the wood-based biomass is subjected to hydrothermal liquefaction to prepare bio-oil and biochar, and then the bio-oil and the biochar are used for partially replacing petroleum asphalt to prepare the bio-asphalt. The high-value utilization of the wood-based biomass has the characteristics that the bio-oil yield is high, the ratio of the bio-oil to the biochar can be controlled by hydrothermal conditions, the bio-oil and the biochar can be utilized in a gradient manner, and the wood-based biomass is green, environment-friendly, renewable and the like. The wood-based biological asphalt prepared by the method has the advantages of high solid waste resource utilization rate, capability of partially replacing petroleum asphalt and capability of reducing environmental pollution and energy consumption. The biological asphalt can meet the use requirements of road pavement, negative carbon emission of a biomass hydrothermal product in the whole life cycle is realized, the use pressure of petroleum asphalt is greatly relieved, forestry waste is fully utilized, emission of volatile organic compounds of the asphalt is reduced, and remarkable economic and social benefits are generated.

The invention provides a method for preparing bio-asphalt from lignocellulosic biomass hydrothermal charcoal. The invention uses lignocellulosic biomass as raw material, utilizes hydrothermal carbonization technology to prepare hydrothermal charcoal, and then combines it with matrix asphalt to prepare bio-asphalt. Asphalt technology. Biomass includes corn stover, rice straw or wheat straw etc. During the reaction process, the mixture of biomass and water is hydrothermally carbonized at a certain temperature and pressure to form hydrothermal charcoal, which is then combined with asphalt through high-speed shearing to prepare bio-asphalt. The process of the invention is simple, the hydrothermal carbon modifier is well combined with the asphalt, the high temperature performance of the asphalt is improved, and a novel and sustainable method is provided for the improvement of asphalt materials and the utilization of biomass resources.

The invention discloses a synergistic sawdust biomass fuel utilizing tanning waste, comprising the following parts by weight: 58-64 parts of raw wood chips, 10-15 parts of chrome-containing leather chips, 12-16 parts of polyanionic cellulose, and 4-4 parts of attapulgite powder 8 parts, 3-5 parts of bastnaesite, 1-3 parts of oxygen enhancer, 0.2-0.5 parts of oxygen-enhancing synergist, 6-10 parts of bio-asphalt, 2-5 parts of cyanobacteria algae mud, 1-2 parts of ammonium sulfate Parts and 3~5 parts of substance A. The chromium-containing leather shavings of the present invention release a large amount of heat during the combustion process, and the wood chips and chromium-containing leather shavings are used to coordinate and match. With the combination of oxygen-increasing synergist and substance A, it releases a large amount of heat, and the hexavalent chromium Ions are not detected, and the purpose of waste utilization is achieved without secondary pollution.