60 results about "Biodiesel production" patented technology

The utility model relates to the technical field of biodiesel production, in particular to a catalyst separation and recovery device for converting waste oil and fat into biodiesel, which comprises a separation tank. A feed pipe is fixedly connected to the rear position at the upper end of the separation tank, a waste discharge pipe is fixedly connected to the middle position at the lower end of the separation tank, two observation windows are fixedly connected to the front surface of the separation tank, and two adjusting components are arranged at the front position at the upper end of the separation tank. The adjusting components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod and a limiting block; the threaded pipe is driven to lift through the adjusting components, so as to adjust the heights of the first suction pipe and the second suction pipe, so that the floating oil and esterified glycerol can be accurately sucked, the separation quality of the esterified glycerol is effectively improved, the purity of the catalyst recovery is further improved, and the waste of the esterified glycerol is avoided.

The invention relates to a method for removing free fatty acids and optionally water from the oils and fats used for the production of biodiesel and from the crude esters produced during the production of biodiesel by extracting the free fatty acids with a mixture of basic organic nitrogen compounds and water as an extraction agent.

The invention relates to the technical field of separation equipment, and particularly discloses a glycerol separation device for biodiesel production, which comprises a separation tank, a plurality of separation devices are arranged in the separation tank, and the plurality of separation devices are arranged along the circumferential direction of the separation tank. The separation device comprises a storage barrel arranged in the separation tank and used for collecting liquid in contact with the liquid level and a separation barrel arranged in the storage barrel, the bottom of the separation barrel is provided with a discharge port used for conveying glycerin, the bottom of the separation barrel is provided with a communication port communicated with the storage barrel, and the communication port is provided with a blocking plate; the separation barrel is in sliding fit with the separation tank in the vertical direction, a lifting device for driving the separation barrel to ascend and descend is arranged on the separation tank, and when the lifting device drives the separation barrel to descend, the horizontal section of liquid located at the contact liquid level between the storage barrel and the separation barrel is gradually reduced; according to the glycerol separation device for biodiesel production, the separation effect of biodiesel and glycerol can be improved.

The invention discloses biodiesel and a preparation method thereof, and belongs to the technical field of petrochemical engineering. The preparation method comprises the following steps: carrying out aldol condensation reaction on a biomass platform aldehyde compound and a carbonyl compound containing carboxyl or ester group to obtain a carboxyl-containing long-carbon-chain oxygen-containing compound; converting the carboxyl-containing long-carbon-chain oxygen-containing compound into long-carbon-chain fatty acid through a selective hydrodeoxygenation reaction; the method comprises the following steps: carrying out esterification reaction on long-carbon-chain fatty acid and methanol to generate long-carbon-chain fatty acid methyl ester; according to the method, low-cost biomass can be effectively converted into high-value biodiesel, dependence on animal and vegetable oil and algae oil in the traditional biodiesel production process is reduced, efficient utilization of biomass resources is achieved, and the production cost of the biodiesel is reduced.

The present invention relates to the technical field of biodiesel production, and discloses a biodiesel blending production apparatus, which comprises a tank body, and further comprises: a feed hopper arranged at the top of the tank body; the feeding pipe is arranged between the feeding hopper and the tank body; the supporting legs are arranged at the bottom of the tank body and used for providing supporting force for the tank body; the discharging pipe is arranged at the bottom of the tank body and is used for discharging the grease separated from the microalgae out of the tank body; the hydraulic cylinder is connected to the inner wall of the top of the tank body, the efficient crushing effect on microalgae cell walls is achieved by arranging the crushing mechanism, the hydraulic cylinder drives a first conical disc to move downwards to extrude microalgae, meanwhile, a first sliding block slides in a spiral sliding groove to enable a vertical shaft to rotate, a second conical disc is driven to rotate, and the microalgae is ground through relative movement of the first sliding block and the second conical disc; the vortex-shaped spiral groove can further push the microalgae to the material leakage opening. And extrusion and grinding are combined in the crushing process, so that the crushing effect of the microalgae cell walls is further improved, and a foundation is laid for subsequent oil extraction.

The utility model discloses a distillation and deodorization system for biodiesel production, which solves the technical problems that in the prior art, the working procedures are various, the use amount of equipment is large, the economic cost is high, and light component oil is separated only by a deodorization tower, so that the separation efficiency and the recovery rate of the light component oil are low. Comprising a heat supply mechanism, and a primary deodorization mechanism and a secondary deodorization mechanism which are respectively connected with the heat supply mechanism. According to the device, the light component oil in the biodiesel semi-finished product is subjected to two-stage separation and recovery, the process is simple, the use amount of equipment is small, the economic cost is reduced, and compared with the prior art that the light component oil is separated only by virtue of a deodorization tower, the separation efficiency of the light component oil and the recovery rate of the light component oil are improved.

The present invention relates to a mobile biodiesel manufacturing plant for continuously producing biodiesel from a triglyceride source and a method of continuously producing biodiesel from a triglyceride source in the mobile biodiesel manufacturing plant.

The invention discloses an efficient recovery and regeneration method of a p-toluene sulfonic acid catalyst in biodiesel esterification reaction, and particularly relates to the technical field of biodiesel production, and the method comprises the following steps: S1, hot water dissolution and layering, S2, methanol recovery through reduced pressure distillation, S3, dynamic adsorption and impurity removal through a composite adsorbent, and S4, two-stage regeneration treatment on a concentrated solution after adsorption purification. Through hot water dissolution, reduced pressure distillation, composite adsorption impurity removal and two-stage regeneration processes, efficient recovery and cyclic utilization of the p-toluene sulfonic acid catalyst are realized, the catalyst cost and the loss of raw materials such as methanol are greatly reduced, the economic benefit is remarkably improved, the discharge of acidic wastewater can be reduced, the corrosion rate of equipment is reduced, and the method is suitable for industrial production. Meanwhile, the high activity of the catalyst in recycling is guaranteed, the production continuity is ensured, and the method has the multiple advantages of economy, environmental protection and stable production.

The present application relates to the technical field of biodiesel preparation, and particularly relates to an integrated heat and power comprehensive biodiesel preparation system, which comprises a solar drying system, a zeolite activation system, a catalyst preparation system and a biodiesel preparation system. The solar drying system is used for cleaning eggshells, drying the cleaned eggshells and conveying the eggshells to the catalyst preparation system. The zeolite activation system is used for activating zeolite, improving the adsorption performance and ion exchange performance of the zeolite, recycling waste heat and conveying the activated zeolite to the catalyst preparation system. The catalyst preparation system is used for preparing calcium methoxide solid base catalyst. The solar drying system and the zeolite activation system are connected to the catalyst preparation system. The biodiesel preparation system is used for preparing biodiesel. The catalyst preparation system and the biodiesel preparation system are connected. The catalyst is prepared by using waste eggshells and methanol. Two wastes are recycled and utilized. High-temperature calcination and soaking are combined, so that the activation process of the zeolite is sufficient and thorough.

The utility model discloses a novel continuous stirred tank reactor applied to biodiesel production, which comprises a bottom plate and relates to the technical field of biodiesel production. According to the novel continuous stirred tank reactor applied to biodiesel production, filter residues filtered by a filter screen frame are conveniently cleaned through a limiting rod and a spring telescopic rod, and during cleaning, a user pulls the limiting rod to push the filter screen frame on the lower side rightwards; at this time, a limiting rod enables an upper filter screen frame to be inserted into the reactor main body through a notch by virtue of a spring telescopic rod, so that subsequent filtration is facilitated, at the moment, a lower filter screen frame penetrates through the notch and enters a fixed box, and at the moment, filter residues filtered by the filter screen frames can be pressed to extrude out residual waste oil; and then waste oil flows into the reactor main body through the oil inlet, and then filter residues filtered by the filter screen frame below can be cleaned, so that the filter screen frame can be comprehensively cleaned, the situation that normal oil feeding of the waste oil is affected due to blockage of the filter plate is avoided, and the production efficiency is improved.

Recombinant yeasts bioengineered to overexpress genes for utilization of cellulosic and hemicellulosic fibers and / or produce lipid, and methods of use thereof. The yeasts are modified to express, constitutively express, or overexpress an exo-cellobiohydrolase I, an exo-cellobiohydrolase II, an endoglucanase, an endoxylanase, or any combination thereof. The yeasts may also be modified to express, constitutively express, or overexpress a lytic polysaccharide monooxygenase, an arabionofuranosidase, a xylanases, an acetylxylan esterase, or any combination thereof. The methods include cultivating the recombinant yeasts to convert low value organic stillage byproducts such as cellulose and hemicellulose into lipids suitable for biodiesel production and other higher value uses.

The utility model discloses an emission reduction device for treating palm acid oil, and particularly relates to the technical field of emission reduction devices, which comprises a biodiesel production component, a filtering component is fixed at the upper end of the biodiesel production component, a feeding component is fixed at the upper end of the filtering component, and a discharging component is fixed at the lower end of the feeding component. A wastewater treatment part matched with the biodiesel production part is arranged on the left side of the biodiesel production part. According to the emission reduction device for treating the palm acid oil disclosed by the utility model, through the mutual matching of the feeding component and the filtering component, not only can the device continuously filter a palm acid oil raw material, but also filtered impurities can be discharged, so that the filtering speed of the device is increased while the quality of the raw material is improved, and the service life of the device is prolonged. The production speed of the device is further improved; by arranging the wastewater treatment part, wastewater generated after production can be treated, and the purpose of reducing pollutant emission is achieved; impurities in the wastewater can be filtered through the arranged treatment box and grating.

The invention belongs to biodiesel production equipment, particularly relates to the field of bio-enzyme catalytic reaction, and discloses a bio-enzyme catalytic reaction device and method for pure biodiesel. The bio-enzyme catalytic reaction device comprises a base, a second storage box is fixed to the other side of the top of a reaction kettle, and a first pre-storage barrel is fixed to the bottom of the second storage box; a second pre-storage cylinder is slidably connected into the first pre-storage cylinder, a third electric valve is fixed at the bottom of the second pre-storage cylinder, and the third electric valve extends into the reaction kettle. According to the bio-enzyme catalytic reaction device for the pure biodiesel, a second sliding rail and a third piston can be moved left and right before the device is used, the overall cross sectional area of the second piston and the third piston can be conveniently adjusted, and therefore the unit oil pumping amount of an oil cylinder is adjusted, and the larger the left moving distance of the third piston is, the shorter the linkage downward moving distance of a second pre-storage barrel is; the smaller the overall pre-storage capacity of the first pre-storage cylinder and the second pre-storage cylinder is, the telescopic amount of the electric telescopic rod can be adjusted according to the matching requirement.

BIOCHEMICAL REACTOR FOR BIODIESEL PRODUCTION

The invention relates to the technical field of catalysis, and particularly discloses a method for preparing pure biodiesel by catalyzing kitchen waste oil with an enzyme. The invention relates to a method for preparing pure biodiesel by catalyzing kitchen waste oil with enzyme, which comprises the following steps: mixing kitchen waste oil, alcohol and a compound enzyme catalyst, and carrying out enzymatic exchange reaction to obtain biodiesel, the compound enzyme catalyst is prepared by coordination of ytterbium ions and a lipase active center, and the water tolerance is less than or equal to 25%. According to the compound enzyme catalyst and the Yb < 3 + > activated compound lipase, the activity of the lipase is improved, the influence of the water content in the kitchen waste oil on the purity and quality of a final product is reduced, the biodiesel production process is simplified, and high production efficiency and economical efficiency are achieved.

The present invention relates to a method for producing a sustainable aviation fuel and a biodiesel fuel.

The utility model discloses a biodiesel acid process reaction system which comprises a biodiesel production mechanism, a drying mechanism connected out of the biodiesel production mechanism, and a mixer connected out of the drying mechanism and externally connected with a methanol source and a sulfuric acid source, the technical problems that an existing biodiesel deacidification technology is independent of a biodiesel enzyme method catalytic production technology, so that the overall procedure in a workshop is complex, the occupied area of equipment is large, raw material consumption is large, energy consumption is high, the process from biodiesel generation to deacidification is interrupted, and the biodiesel treatment efficiency in the workshop is low are solved. The biodiesel deacidification device is directly connected out of a biodiesel production mechanism, deacidifies biodiesel produced by the biodiesel production mechanism, recycles raw materials used in the deacidification process, and applies the recycled raw materials to a front-end biodiesel production mechanism, so that the process from generation to deacidification of the biodiesel is a continuous process; the biodiesel treatment device is simple in structure, avoids interruption of biodiesel treatment, reduces raw material consumption in a workshop while improving biodiesel treatment efficiency, and is simple in process, less in used equipment, and capable of reducing occupied space of the equipment in the workshop and energy consumption.

The invention relates to the technical field of catalysts, and particularly discloses a liquid catalyst, a preparation method and a method for producing second-generation biodiesel, the liquid catalyst comprises a transition metal component, a functional element auxiliary agent and a compound surfactant; wherein transition metal in the transition metal component is at least two of iron, nickel, cobalt and molybdenum, and the concentration of the transition metal is 0.5-5 wt%; functional elements in the functional element additive comprise lanthanum and ruthenium, and the concentration of the functional elements is 0.1-5 wt%; the molar ratio of lanthanum to ruthenium is (1.5-2): 1; the concentration of the compound surfactant is 0.05 to 0.5 weight percent; the liquid catalyst is used for biodiesel production in a continuous suspended bed reactor. The catalytic activity and stability of the liquid catalyst in the second-generation biodiesel preparation can be improved, and the problem that the liquid catalyst is difficult to recover can be solved.

This utility model discloses a material mixing device for crude ester desulfurization in biodiesel production: the crude ester desulfurization material mixer is vertically arranged, with upper and lower large flanges connected to the upper and lower ends of its barrel, respectively. A conical collection hopper is connected to the other side of the lower large flange. Three sets of nitrogen aeration discs, each consisting of two pairs of small flanges connecting half a nitrogen aeration disc, are installed inside the barrel and fixed to an aeration disc support. A nitrogen inlet pipe is fixed to the nitrogen aeration disc. The top of the aeration disc support is welded to the upper large flange. The upper large flange connects to three material pipelines: a nitrogen inlet pipeline with a valve, a desulfurizing agent pipeline with a pump and valve, and a crude ester pipeline. The outlet pipe of the conical collection hopper is connected in sequence to a ball valve at the bottom of the mixer, a crude ester discharge pump, and a ball valve at the crude ester settling tank inlet, before being connected to the top of the crude ester settling tank. This utility model achieves good mixing of various materials, uniform and stable desulfurization effect, low desulfurization cost, and convenient and efficient operation during crude ester desulfurization in biodiesel production.

The utility model discloses an enzyme reaction tank for biodiesel production, which solves the technical problem that when the heating and cooling of the existing enzyme reaction tank are carried out in different time periods, the enzyme in the enzyme reaction tank is inactivated due to excessive heating or the enzyme activity in the enzyme reaction tank is reduced due to excessive cooling. The device comprises a supporting mechanism, a tank body arranged on the supporting mechanism, and a cooling mechanism and a heating mechanism which are arranged on the tank body, the cooling mechanism comprises a spiral coil which is arranged in the tank body and clings to the inner wall of the tank body, and a water inlet pipe and a water outlet pipe which are arranged on the tank body and are respectively communicated with the spiral coil, and the water inlet pipe is communicated with an external cold water source. The heating interlayer and the spiral coil pipe are simultaneously arranged on the tank body, hot water is contained in the heating interlayer, cold water is contained in the spiral coil pipe, and the hot water in the heating interlayer and the cold water in the spiral coil pipe interact at the same time to dynamically adjust the temperature of the tank body, so that the temperature of the tank body is proper, and enzyme inactivation or activity reduction in the tank body can be avoided.

The application relates to the field of bio-diesel, and discloses a bio-diesel production device. In the application, the bio-diesel production device comprises a filter barrel, a filter screen is slidably connected in the filter barrel, a side extension rod is fixedly connected to the top end of the filter screen, a supporting ring is fixedly installed at the top end of the side extension rod, a lifting rod is fixedly connected to the side end of the supporting ring, a hydraulic rod is installed at the top end of the lifting rod, a support is fixedly installed at the side end of the hydraulic rod, a pressing barrel is fixedly connected to the top side end of the support, an oil outlet pipe is fixedly connected to the lower end of the pressing barrel and located in the filter barrel, a liquid discharge pipe is fixedly connected to the bottom side end of the filter barrel, and a catalytic reaction barrel is fixedly installed at the other end of the liquid discharge pipe away from the filter barrel. The device can automatically press and extract oil liquid from bio-raw materials before reaction, filter the oil liquid, conveniently recycle and process the filtered tissue materials, reduce impurities of the raw materials, and improve product quality.

The application provides a precise regulation method for rapid growth of high-fat acid microalgae biomass in Xinjiang special environment. Through red light / blue light alternate irradiation, dynamic nitrogen supply and salinity-low temperature combined stress, the daily average growth rate of microalgae biomass is greater than or equal to 120 mg / L, and the total fat content is greater than or equal to 35%. The method breaks through the contradiction between growth and lipid accumulation in traditional culture, and the light energy utilization rate is increased by 25%, which is suitable for large-scale development of desert microalgae resources and biodiesel production.

The utility model discloses an on-line cleaning and descaling device for heat exchange equipment in biodiesel production. A feeding manhole is formed in the top of a stainless steel liquid medicine tank, a glass liquid level meter is arranged on one side outside the tank, a dial thermometer is arranged on the other side outside the tank, a heating coil is arranged in the tank, a steam inlet pipe is provided with a steam inlet valve, the bottom of the tank is conical, and an outlet of the conical bottom is divided into two paths, one path is a discharge pipe with a discharge bottom valve, and the other path is connected with an inlet of a gear pump after being connected with a liquid medicine tank discharge valve and a Y-shaped filter; an outlet of the gear pump is divided into two paths, one path is a liquid medicine circulating pipe with a liquid medicine circulating valve, and the other path is connected to a heat exchanger water inlet pipe with a water inlet valve of the heat exchanger after being connected with a heat exchanger medicine washing feed valve; the heat exchanger water outlet pipe is divided into two paths, one path is a heat exchanger water outlet pipe with a water outlet valve, the other path is connected with a heat exchanger chemical washing water return valve and then converged with a chemical circulating pipe with a chemical circulating valve, and the converged pipeline passes through a flowmeter and then is connected back to the top of the stainless steel chemical tank. The device is simple and compact in structure, good in descaling and cleaning effect and convenient and efficient to operate.

The invention belongs to the technical field of biodiesel preparation, and particularly relates to a method for preparing biodiesel through a double-water-absorbent esterification method. The method comprises the following steps: adding oil containing fatty acid, a sulfuric acid solution and methanol into a reaction tank, uniformly stirring, adding a water absorbent, stirring at 50-70 DEG C for 40-50 minutes, and separating the reacted fatty acid methyl ester into a collecting device; the water absorbent comprises a benzene compound water absorbent, a halogenated hydrocarbon water absorbent and an ether water absorbent. According to the invention, moisture in the esterification reaction process can be fully removed.

A pretreatment method for waste grease used in the preparation of a hydrocarbon-based biodiesel. A cascaded process including a water vapor treatment, a low-carbon alcohol treatment and reduced-pressure distillation is utilized, and the pretreatment method comprises the following process steps: first performing a water vapor treatment on waste grease by using high-temperature water vapor; then cooling same by using a transition tank, separating by-products, and then conveying same into a low-carbon alcohol treatment tank; introducing a low-carbon alcohol / nitrogen gas mixture for a deacidification reaction; and finally performing reduced-pressure distillation, with an intermediate fraction obtained therefrom being used as a raw material for the production of a hydrocarbon-based biodiesel. The pretreatment method removes or significantly decreases organic chlorine, phospholipids, metal elements and other impurities in waste grease which affect the activity and lifetime of a catalyst used in the production process of a hydrocarbon-based biodiesel, prolongs the service life of a catalyst used in the preparation of a hydrocarbon-based biodiesel from waste grease, improves the process stability, and solves the problem of organic chlorine, phospholipids, metal elements and other impurities in waste grease affecting the lifetime of a catalyst and equipment in the existing hydrocarbon-based biodiesel production techniques.

The utility model discloses a glycerol residue demulsification and sedimentation device in biodiesel production, which comprises a stainless steel stirring tank with a jacket, a dial thermometer and a magnetic flap liquid level meter, a stirrer, an observation sight glass and a feeding pipe on the top of the tank, a hydrophobic valve on the side of the upper part of the tank, a steam inlet valve on the lower part of the tank, a glass liquid level meter on a stainless steel feeding tank, an outlet pipeline connected to the top of the stainless steel stirring tank, a glycerol buffer bag and a pneumatic valve connected to the outlet pipeline of the stainless steel stirring tank, a glycerol storage tank connected to the other end of the outlet pipeline, a gear pump connected to the outlet pipeline of the glycerol storage tank, a sampling ball valve arranged in front of the gear pump, and an outlet pipeline of the gear pump connected to the feeding pipeline of the stainless steel stirring tank and a glycerol recovery pipeline. The utility model has the advantages of high efficiency and reliability in the glycerol residue demulsification and sedimentation treatment in biodiesel production, which can greatly improve the raw material utilization rate and the product yield in biodiesel production and reduce the difficulty in subsequent processing of the by-product crude glycerol.

The application provides a treatment method of waste oil and fat biodiesel acid water, and the method can separate waste sulfuric acid, methanol and organic impurities in the biodiesel acid water and recycle the waste sulfuric acid after concentration, avoids pollution caused by direct discharge of the biodiesel acid water to the environment, realizes recycling of the sulfuric acid, and greatly reduces the chemical oxygen demand (COD) of the biodiesel acid water, effectively reduces the difficulty of waste water treatment, and saves the production cost of enterprises.

The invention provides application of lipoprotein lipase tolerant to an organic reagent in biodiesel preparation, and belongs to the technical field of enzyme engineering. The invention provides an application of lipoprotein lipase expressed by a recombinant pseudomonas aeruginosa strain PAO1-pBBR1MCS-5-LPL in the production of biodiesel by catalyzing oil and fat. The lipoprotein lipase has good tolerance to one or more than two conditions in organic reagents, high temperature and acidic and alkaline environments. According to the method, the lipoprotein lipase produced by the pseudomonas aeruginosa is used for catalyzing the waste edible oil and fat, so that the biodiesel can be efficiently synthesized. The lipoprotein lipase has wide application prospects in industrial diesel oil production in the future, the scheme is high in feasibility, and remarkable environmental benefits can be brought.

The utility model relates to the technical field of waste grease purification, and discloses a waste grease anti-accumulation repeated purification device for biodiesel production, which comprises a box body, the inner wall of the box body is fixedly connected with a heating structure, and the right side of the box body is fixedly connected with a heat conduction structure, a fan, a heat conduction box and a heat conduction pipe. The device is reasonable in structure, and the connecting motor drives the connecting rotating shaft, so that the effects of heating waste grease to prevent the waste grease from being solidified and cleaning impurities on the surface of the filter plate are achieved, and preheating of the heating structure can be guided into the heat conduction box through the heat conduction structure; the problem that when waste grease is purified, the grease is prone to being attached to the inner wall of the purification box due to too high viscosity, so that the waste grease is accumulated, and the purification effect is affected is solved, the cleaning motor drives the cleaning rotating shaft to enable the left shaft seat to continuously rotate, and the inner walls of the box body and the purification box can be continuously cleaned; and the residual waste grease on the inner wall of the device can be cleaned after the device purifies the waste grease.