2901results about "Reagents" patented technology

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.

Disclosed herein are methods for pyrolysis of plastic feedstock comprising post-consumer and / or post-industrial plastics. In various implementations, the methods include directing the plastic feedstock into an internal volume of a reactor vessel, and pyrolyzing the plastic feedstock in the internal volume of the reactor vessel.

Chemical recycling facilities for processing mixed plastic waste are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy generation / energy production facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.

The invention relates to a plugging agent suitable for a malignant leakage formation and a preparation method and application thereof, and belongs to the technical field of petroleum and natural gas drilling engineering. According to the invention, through compounding of the skeleton particles, the intelligent response adhesive and the impact-resistant reinforcing component and cooperation of the skeleton particles and the intelligent response adhesive, a mechanical barrier can be rapidly formed at a crack inlet and a crack is dynamically filled, so that the plugging efficiency and the anti-scouring capability are improved, the compressive strength of a plugging layer is greater than or equal to 20MPa, and the anti-scouring time is prolonged to more than 48 hours; the intelligent response adhesive enables the plugging agent to have good intelligent response characteristics and reservoir protectiveness, self-adaptive adjustment in the plugging process is ensured through a temperature and pH dual mechanism, the biodegradation rate is larger than or equal to 70%, the reservoir pollution risk is remarkably reduced, the compressive strength of a plugging layer formed at high temperature and high pressure is larger than or equal to 20 MPa and is improved by 100% or above compared with that of a traditional plugging agent, and the plugging agent has good application prospects. The biodegradation rate is greater than or equal to 70%, and the plugging problem of the ultra-deep malignant leakage stratum is effectively solved.

To provide a method for fixing carbon dioxide by which bubbles of carbon dioxide introduced into a solution can be made fine without increasing energy consumption.SOLUTION: A carbon dioxide fixation method comprising a precipitation step of introducing a gas containing carbon dioxide into a carbon dioxide fixation solution in which calcium ions are eluted to generate bubbles of the gas containing carbon dioxide in the carbon dioxide fixation solution, thereby reacting the calcium ions eluted in the carbon dioxide fixation solution with carbon dioxide to precipitate calcium carbonate, wherein the carbon dioxide fixation solution is an aqueous solution in which calcium ions are eluted in an aqueous solution of methylparaben.SELECTED DRAWING: Figure 1

The utility model discloses an atomization rotational flow crystallization device for CO2 resource recovery, which relates to the technical field of recovery of CO2 in combustion flue gas and comprises a spray gas inlet device, a spherical cyclone and a condensation crystallization device. According to the utility model, the atomization rotational flow crystallization device is adopted to realize CO2 resource recovery of flue gas, the flue gas is firstly in full contact with atomization absorption liquid sprayed by the multi-point spraying array assembly to form a flue gas absorption liquid mixture, the flue gas absorption liquid mixture is in a rotational flow state after entering the spherical hydrocyclone, and gas-liquid phase separation is carried out, so that the CO2 resource recovery is realized. The liquid phase is condensed under the condensation action of the condensation crystallization device to obtain a solid-phase product sodium bicarbonate and a liquid-phase absorption liquid, and the liquid-phase absorption liquid is subjected to temperature control adjustment and atomization again to provide an absorption liquid for the multi-point spray array assembly; and the method can also be used for large-scale CO2 resource recovery scenes such as thermal power plants and the like, the process and equipment are stable and reliable, the operation is flexible, and the CO2 absorption conversion rate is high.

The production device comprises a base, a reaction barrel is fixedly arranged on the base, a mounting frame is fixedly arranged on the outer side of the reaction barrel, a motor is fixedly connected to the top end of the mounting frame, and a stirring device for stirring basic zirconium sulfate and tartaric acid is arranged in the reaction barrel. The feeding parts are sequentially added into the reaction barrel, and a discharging part for discharging reacted liquid is arranged in the reaction barrel; through the staggered and periodic coincidence design of discharging grooves of the inner barrel and the outer barrel in the feeding part, the rotating rod is matched to drive the outer barrel to spirally move downwards, accurate and quantitative adding of the basic zirconium sulfate solution is achieved, meanwhile, the adding time and flow of the tartaric acid solution are automatically controlled through magnetic ring adsorption of the upper barrel and the outer barrel and stored energy release of the first spring, and the feeding efficiency is improved. Manual intervention is reduced, efficiency loss caused by step-by-step feeding is avoided, and the preparation efficiency of the water repellent agent is remarkably improved.

The application provides a temperature-resistant and salt-resistant wall stabilizer for a ten-thousand-meter deep well water-based drilling fluid and a preparation method and application thereof, and belongs to the technical field of drilling. The preparation method of the wall stabilizer comprises the following steps: acrylic acid is added into deionized water, the pH of the system is adjusted to 7.0, then N-hydroxymethyl acrylamide, N-[2-(3,4-dihydroxyphenyl)ethyl]-2-acrylamide, an emulsifier, octadecyl vinyl ether and a complexing agent are sequentially added into the system, shearing is performed, a monomer solution is obtained, an initiator is added into the monomer solution, and reaction is performed; after the reaction is completed, washing, drying and crushing are performed, and the wall stabilizer is obtained. The wall stabilizer has a temperature resistance of 200 DEG C and a salt resistance of saturation, has strong adsorption and high cohesion, can effectively adsorb, plug and cement micro-pores and micro-cracks of rocks, thereby consolidating the rocks, effectively enhancing the well wall stability, preventing drilling fluid leakage and providing technical support for safe and efficient drilling of deep wells.

Recycled content liquified pyrolysis gas (r-LPyG) is produced using a process and system that optimizes the production, separation, liquification, storage, loading, and / or transporting of gases generated from the pyrolysis of waste plastic. The r-LPyG can be utilized in a variety of end use applications, including as a raw material for other chemicals and chemical intermediates.

The invention discloses a phosphorus trichloride production reaction kettle with a defoaming structure, and relates to the technical field of reaction kettles. According to the phosphorus trichloride production reaction kettle with the defoaming structure, through cooperation of the obliquely-installed sawtooth plates and the protruding strip rings, during rotation, the sawtooth plates drive foam on the liquid level to move towards the periphery, in the movement process, the foam on the liquid level is separated from the protruding strip rings, and the foam on the liquid level is removed. The sawteeth at the top of the sawtooth plate are in contact with accumulated foam, so that part of the foam is broken, the unbroken foam outwards impacts the inner wall of the convex strip ring under the action of centrifugal force, so that the foam is in contact with the convex strips uniformly arranged on the inner wall of the inner convex ring, and compared with a smooth inner wall of a traditional reaction kettle, the contact area is reduced when the convex strips of the inner convex ring are in contact with the foam; and the pressure during impact is increased, so that the foam is broken under higher pressure, and the defoaming effect is improved.

This invention provides a method for preparing monodisperse nano-calcium carbonate from calcium-containing industrial solid waste. The method comprises the following steps: S1: mixing calcium-containing solid waste and an ammonium salt solution, reacting the mixture, and filtering to obtain a calcium-containing filtrate; S2: mixing the calcium-containing filtrate, CO2 gas, and a crystal form control agent, reacting the mixture, and filtering to obtain nano-calcium carbonate; S3: mixing the nano-calcium carbonate with an aqueous solution containing a surfactant, reacting the mixture, centrifuging, washing, and drying to obtain monodisperse nano-calcium carbonate. This method improves the calcium leaching rate from calcium-containing solid waste, achieves explosive nucleation and rapid growth of calcium carbonate, enhances the reactivity and reaction time between the surfactant and the nano-calcium carbonate particles, and improves the dispersion and surface modification degree of the calcium carbonate nanoparticles.

Methods and systems are provided for the conversion of waste plastics into various useful downstream recycle-content products. More particularly, the present system and method involves pyrolyzing one or more waste plastics into various pyrolysis products, including a carbon solids-containing pyrolysis residue, and then subjecting the pyrolysis residue to partial oxidation gasification to thereby form a syngas composition.

The invention provides a preparation method of a film-forming enhancer for water-based drilling fluid, which is characterized by comprising the following steps: A) mixing a phenolic compound, water and inorganic base, adjusting the pH value, adding a silicon reagent, and reacting to obtain a first reaction solution; b) mixing phenol, formaldehyde, a sulfonating reagent and the first reaction solution, and reacting to obtain a second reaction solution; c) mixing the second reaction solution with water to obtain a diluent, and reacting to obtain a third reaction solution; and cooling and drying the third reaction liquid to obtain the product. The film-forming enhancer is silicon-modified sulfonated phenolic resin and is prepared by reacting water-soluble silicate with phenols, formaldehyde, a sulfonic acid reagent and inorganic base at high temperature and high pressure. The film-forming enhancer provided by the invention can effectively improve the performance of a drilling fluid system, improve the quality of a mud cake and control the high-temperature and high-pressure filter loss, has a good reservoir protection effect, and forms a new technology integrating well wall stabilization, leakage prevention and stoppage, formation pressure bearing improvement and reservoir protection; and the requirements of slim hole drilling well wall stability, safe drilling and reservoir protection can be met.

A release film comprising: a laminated film in which a first coating layer B1 containing a polyester resin containing an inorganic pigment, a void-containing layer A containing voids therein, and a second coating layer B2 containing a polyester resin containing an inorganic pigment are laminated in this order; and a release layer C on at least one side of the laminated film, wherein the void-containing layer A is made of a composition containing a polyester resin, a polyolefin resin, and a silicone resin, and has an apparent density of 0.80 g / cm3 or more and 1.20 g / cm3 or less.

There is disclosed a bag having a tubular body with a top open end and a bottom closed end. The tubular body has a larger open diameter at the top open end. The tubular body narrows into a narrower open diameter adjacent to a bottom closed end. The tubular body in a flattened two-fold condition has a pair of side edges extending from a top edge to a bottom edge. The top edge delimits the top open end. The bottom edge delimits the bottom closed end. The pair of side edges are generally parallel to one another in a first portion adjacent to the top edge.

An insulation component manufacturing method for manufacturing flow-tight, light-weight, sustainable insulation components for vehicles, the insulation component having at least one tufted textile top cloth, a film as the steam-and air-tight flow-tight layer and an absorber layer from a nonwoven having fibers that run vertically upwards relative to the surface, and is manufactured by means of at least one steam vacuum tool. Also, a flow-tight, light-weight, sustainable insulation component for vehicles.

The invention relates to the technical field of oilfield exploitation, and discloses a polysaccharide-containing solid-free drilling fluid and a preparation method and application thereof.The drilling fluid is formed by mixing a plugging anti-collapse agent, a polysaccharide fluid loss agent, a tackifier and the like as raw materials, the functional monomer is prepared by carrying out emulsion cross-linking polymerization under the action of an initiator, the functional monomer structure contains a large number of quaternary ammonium cations and sulfonic acid groups and also contains a biphenyl structure, and the quaternary ammonium cations can generate a strong adsorption effect with shale and silt, so that the plugging effect and temperature resistance of the drilling fluid are improved; polysaccharide is adopted as the filtrate reducer of the drilling fluid, high-viscosity colloid can be formed after the polysaccharide is dissolved in water, stratum pores are effectively blocked, filtrate invasion is reduced, the filter loss is reduced, and the polysaccharide filtrate reducer can improve the viscosity of the drilling fluid, enhance the rock-carrying capacity of the drilling fluid and improve the cleaning effect of a well hole.

The application discloses a rapid pyrolysis catalytic device and method using Zn vapor latent heat heating, and the method comprises the following steps: putting a pyrolysis substance into a zinc oxide reaction dish, introducing inert gas into a superheated vapor inlet, and evacuating air in the pyrolysis catalytic device; starting a pyrolysis reaction furnace, preparing zinc vapor, and adjusting a pressure regulating valve so that the pressure in the pyrolysis reaction furnace reaches a required pressure; and collecting and processing pyrolysis products at a pyrolysis product outlet. The method provided by the application controls the boiling point of Zn vapor in a small range by pressure, utilizes the high vaporization latent heat of high-temperature Zn vapor and the high contact rate with the pyrolysis substance to provide sufficient heat for the pyrolysis substance in an instant, realizes short-time and high-efficiency pyrolysis, and reduces the generation of process by-products.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

The utility model provides chemical reagent additive filling equipment, which relates to the technical field of chemical reagent additives, and comprises a filling assembly, a clamping moving assembly is arranged at the bottom of the filling assembly, a mixing assembly is arranged in the filling assembly, the filling assembly comprises a filling tank, the bottom of the filling tank is connected with a blanking pipe, and the blanking pipe is connected with a feeding pipe. And the clamping moving assembly comprises a moving groove, a moving block is installed in the moving groove, and a first air cylinder is connected to the top of the moving block. An electric telescopic column extends to push a second air cylinder and is matched with the second air cylinder to stretch out and draw back at the same time, so that a clamping plate clamps and fixes a filling bottle, then a first air cylinder shrinks to drive a moving block to move in a moving groove, and a bottle neck of the filling bottle is clamped in a clamping ring; and the filling bottle is always kept at a correct position in the filling process, so that the chemical reagent additive is accurately injected into the bottle, the leakage of the chemical reagent additive is avoided, and the waste is reduced.

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and / or strength that derive from the feedstock, heat rate, and additives.

A hydrogen production system for producing a hydrogen gas product includes a geologic hydrogen source configured to provide a feedstock comprising hydrogen, nitrogen, and helium and purification equipment comprising two or more of: a pressure swing adsorption (PSA) device; a guard bed; a separation membrane; a reactive membrane; or a cryogenic separation device. The purification equipment is configured to receive the feedstock from the geologic hydrogen source and produce a hydrogen gas product, and production of the hydrogen gas product exhibits a carbon intensity score less than 3.0 kg CO2 eq / kg H2.

The invention provides a sand washing temporary plugging agent and a preparation method thereof, and belongs to the technical field of oilfield chemistry. The sand washing temporary plugging agent comprises bridging particles and a filling material, and the bridging particles are of a core-shell structure and comprise from inside to outside an inner core formed by a compression-resistant material; the inner shell is formed by thermosetting resin and a curing agent, and materials in the inner shell can be continuously cured and bonded into a whole under the temperature condition of a target stratum; the melting point of the paraffin is lower than the temperature of the target stratum; the shell is formed by calcium carbonate and a disintegrating agent; and the waterproof protective shell is formed by calcium carbonate. According to the bridging particle, the shell and the waterproof protective shell are both brittle calcium carbonate shells, are combined into a whole and are easy to break when bearing external pressure, the shell is added with the disintegrating agent, and can rapidly absorb water to swell after meeting water, so that the shell and the waterproof protective shell are broken into fragments together, a seepage channel of a temperature-sensitive bonding material among particles is increased, and the temperature-sensitive bonding material is not prone to cracking. And the loading capacity of the solidified integrated structure is enhanced.

A foam product comprising an expanded foam body having cells defined therein and blowing agent held within the cells, wherein at least 5% by weight of the foam body is formed from at least one component from a renewable source.

The invention provides a biomass powder gasification nozzle, a gasification furnace and a biomass powder gasification method, and relates to the technical field of biomass combustion equipment. The nozzle comprises an outer ring nozzle, a middle ring nozzle, an inner ring nozzle and a center nozzle which are coaxially nested, an outer ring channel, a middle ring channel and an inner ring channel are sequentially formed between the outer side walls and the inner side walls of the adjacent nozzles, and a center channel is defined by the inner wall of the center nozzle. An inlet and an outlet are formed in the side wall of the inner ring channel, the inlet conveys a mixture of biomass powder and conveying gas, the outlet is located on the upstream of the inlet, a separator is arranged between the inlet and the outlet and used for separating part of conveying gas from the mixture and leading out the conveying gas to the outlet to be discharged, a swirler and a filter are arranged in the separator, and the swirler is arranged below the filter. According to the invention, after the biomass powder is conveyed to the inner ring channel along with the conveying gas, the separator separates part of the conveying gas from the mixture and discharges the part of the conveying gas from the outlet, so that the conveying gas sprayed out of the nozzle is reduced, and then inert gas entering the gasification furnace is reduced.

To provide a carbon dioxide recovery desorption concentration device and a carbon dioxide recovery desorption concentration method capable of efficiently recovering and concentrating carbon dioxide with low energy consumption by separating carbon dioxide from water decomposition products in recovery of carbon dioxide from carbon dioxide-containing gas utilizing electrochemical reactions.SOLUTION: A carbon dioxide recovery desorption concentration device 1 performs recovery of carbon dioxide from carbon dioxide-containing gas and desorption of the recovered carbon dioxide using intermittently progressed water electrolysis reactions to concentrate carbon dioxide.SELECTED DRAWING: Figure 1

The present application relates to the field of inorganic non-metallic materials, and particularly relates to a method for preparing high-dispersity white carbon black by multi-kettle series pressure carbonization, which comprises the following steps: (1) taking sodium silicate with a modulus of 3.1-3.4 as raw material, and introducing carbon dioxide gas into a reaction kettle to perform carbonization reaction, and stopping the reaction when the pH of the solution is 6-9 to obtain white carbon black slurry; (4) performing filtration, washing and drying treatment on the slurry obtained in step (3) to obtain a white carbon black sample. The present application adopts the mode of adding crystal seeds and multi-kettle series pressure carbonization, which can prepare high-dispersity white carbon black product on one hand, and is beneficial to shorten the reaction time, reduce the energy consumption and improve the raw material utilization rate on the other hand, and provides a new idea for the preparation of high-dispersity white carbon black and has a good industrial prospect.

Systems and methods to provide low carbon intensity (CI) hydrogen through one or more targeted reductions of carbon emissions based upon an analysis of carbon emissions associated with a combination of various options for feedstock procurement, feedstock refining, processing, or transformation, and hydrogen distribution pathways to end users. Such options are selected to maintain the total CI (carbon emissions per unit energy) of the hydrogen below a pre-selected threshold that defines an upper limit of CI for the hydrogen.

The invention relates to a method for isolating carbon dioxide from an air flow, wherein the method comprises at least the following steps: a) providing an aqueous solution of a carbon dioxide absorption agent, wherein the carbon dioxide absorption agent comprises cations from the first main group of the periodic system; b) passing a carbon-dioxide-containing air flow through the solution provided in method step a), wherein at least one part of the carbon dioxide from the air flow is bonded to the carbon dioxide absorption agent and the air flow is enriched with carbon dioxide; c) introducing the aqueous solution from step b) or an aqueous solution comprising the carbon dioxide bonded to the carbon dioxide absorption agent into a central chamber of an at least three-chamber electrolysis cell formed by an anode chamber, cathode chamber and at least one central chamber arranged between the anode chamber and the cathode chamber, wherein the three-chamber electrolysis cell has a membrane that is selective for monovalent cations; and electrolysing the aqueous solution, releasing at least one part of the carbon dioxide.

The invention discloses dynamic reversible hydrogen bond regulation type nano calcium carbonate as well as a preparation method and application thereof. The preparation method comprises the following steps: preparation of nano calcium carbonate slurry: treating limestone to obtain the nano calcium carbonate slurry; synthesizing a dynamic hydrogen bond modifier: mixing hexamethylene diisocyanate and diethanol amine, adding a catalyst, and reacting to obtain a ureido-containing prepolymer; adding glycerol and monobutyl phosphate into the prepolymer for further reaction to obtain an intermediate; mixing the intermediate with polyethylene glycol, and reacting to obtain a dynamic hydrogen bond modifier; and preparing a nano calcium carbonate product: adding a dynamic hydrogen bond modifier into the nano calcium carbonate slurry, stirring for reaction, and then carrying out filter pressing dehydration, drying and crushing to obtain the nano calcium carbonate product. After the prepared nano calcium carbonate product is applied to the automobile primer, synergistic balance of high yield value and low Bingham viscosity of the automobile primer is realized, and performance improvement and constructability are well coordinated.