43results about How to "Improve sulfur removal efficiency" patented technology

The invention discloses an organic composite efficient sulfur removal agent for oil-gas field and preparation method and application of the organic composite efficient sulfur removal agent. The sulfur removal agent is characterized in that water serves a solvent and comprises an alcohol amine component A, an alcohol amine component B, a triazine derivative, inhibiter, synergist and low-molecular mass alcohols; the alcohol amine component A refers to methyldiethanolamine, the alcohol amine component B refers to one of triethanolamine and diethanolamine or a mixture of triethanolamine and diethanolamine; triazine derivative refers to hexahydro-1,3,5-tris-s-triazine; the inhibiter refers to seventeen alkenyl amide ethyl imidazoline; the synergist refers to sulfolane; the low-molecular mass alcohols refer to one of ethylene glycol and glycerol or a mixture of ethylene glycol and glycerol. The sulfur removal agent has the advantages of good selectivity on sulfuretted hydrogen, small dosage, quick effect, high sulfur removal efficiency, no corrosion of steel, stable product performance, difficulty in heating decomposition, capability of being biodegradable and the like; sulfide like sulfuretted hydrogen existing in extraction of an oil-gas well can be effectively removed or reduced to safety threshold value range in content, corrosion of sulfide on pipelines and equipment is inhibited, and safety on the equipment and operation personnel is guaranteed.

The invention relates to a method for removing sulphur from coking benzol, belonging to the technical field of organic chemical engineering; and the invention in particular relates to continuous sulphur removal technology of coking benzol; the coking benzol, solvent, oxidant and titanium-silicon molecular sieve catalyst particles are added in a slurry bed reaction kettle and are reacted under the temperature of 10-90 DEG C, and the reacted products are divided into oil-phase slurry and water-phase slurry, alkaline washing and water-washing layering are carried out to the oil-phase slurry for obtaining sulphur-removal benzene, and the water-phase slurry is returned to the reaction kettle. After being treated, the coking benzol contained about 200ppm of sulphur contains 0-5ppm of sulphur; the method has simple flow, less three wastes and high yield coefficient and is easy to realize industrialization.

The invention discloses a preparation method of a suspension liquid desulfurization agent for a water-based oil testing well completion fluid system. The suspension liquid desulfurization agent is prepared from the following raw materials in parts by weight: 5 to 8 parts of a surface modifying agent, 0.8 to 1 part of an emulsifier, 1 to 3 percent of a dispersant and 10 to 30 parts of nano-powder;the preparation method comprises the following steps: adding the surface modifying agent into isopropyl alcohol in a container A; heating to 60 to 80 DEG C and stirring to form a uniform solution; adding the dispersant, the emulsifier and the nano-powder into a water solution with the pH (Potential of Hydrogen) of 9 to 10 in a container B; heating to 60 to 80 DEG C and stirring to form a uniform solution; under the action of rapid stirring, adding the uniform solution formed in the container A into the container B and stirring for 2h to form slurry which is uniformly dispersed; cooling to roomtemperature. According to the preparation method disclosed by the invention, the desulfurization agent and a well completion fluid system treatment agent are not gathered and consolidated under a high-temperature condition of 180 DEG C; the desulfurization agent does not influence the rheological property and sedimentation stability of the well completion fluid system under the high-temperature condition, and the aim of high desulfurization efficiency is realized.

The invention relates to an emulsification, combustion and desulphurization process of an industrial heavy fuel, comprising the following steps of: preparing a sulfur-removing assistant, preparing emulsified oil, and removing sulfur. The invention has the advantages of low equipment investment, high sulfur-removing efficiency, low running cost, rapid and thorough reactive transformation and high utilization rate of a desulfurizing agent; the addition amount of the desulfurizing agent can be adjusted along the sulfur content of the fuel so that the invention achieves balanced energy efficiency; reactive products are beneficial and innocuous for the qualities of sintering and fusing products, in particular for molten glass, and the dosages of a fusing assistant and a clarifying agent can be reduced.

The invention provides an online desulfurization system and method for storage batteries based on frequency conversion signals. A test circuit is connected to a storage battery pack, the storage battery pack is divided into a front half pack and a rear half pack through two sets of single-pole double-throw switches, the internal resistance of the front half storage battery pack and the internal resistance of the rear half storage battery pack are measured, and the vulcanization degree of the storage batteries is judged according to a standard internal resistance information table of the storage batteries, so that pulse signals with the corresponding frequency can be selected according to the vulcanization degree, the desulfurization effect is guaranteed, and the conditions that desulfurization cannot be conducted due to the over-low pulse signal frequency and that the storage batteries are damaged due to the over-high pulse signal frequency can be prevented at the same time. On the other hand, the front half storage battery pack and the rear half storage battery pack can be exchanged by switching the single-pole double-throw switches to be closed towards the other movable end, so that the measurement precision of the internal resistance of the storage batteries is improved, the influence of errors of internal resistance measurement on the judgment of the vulcanization degree isprevented, the desulfurization effect is ensured, and meanwhile, the resource waste and the manpower use are reduced.

The invention provides a micro-foaming rubber runway. The micro-foaming rubber runway comprises micro-foaming rubber particles and a polyurethane adhesive, the polyurethane adhesive is used for adhering and curing the micro-foaming rubber particles to form the micro-foaming rubber runway, the micro-foaming rubber runway layers are stacked and are adhered and cured through a polyurethane adhesive to form the micro-foaming rubber runway layers, the micro-foaming rubber particles are prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 20-30parts of a reinforcing agent, 3-7 parts of a vulcanizing agent, 3-5 parts of a coupling agent, 5-10 parts of a foaming agent and 1-5 parts of an anti-aging agent, and the foaming agent comprises thefollowing components in parts by weight: 4-8 parts of an AC foaming agent and 1-2 parts of 2, 5-ditert-pentylhydroquinone. The invention provides the micro-foaming rubber runway with good elasticity,good tensile and tear resistance and excellent anti-aging performance and a preparation method of the micro-foaming rubber runway.

The invention discloses a preparation process and application of a composite titaniferous solution for catalytic purification of waste gas. The process comprises the following steps: pumping an alkaline gas into a metatitanic acid slurry which is continuously stirred by a bubbling method to realize desulfurization, adding a strong acid or a strong alkali solution and a dispersing agent into a titanium cake obtained by desulfurization, grinding to obtain ultrafine titaniferous solution, adding an active component, an auxiliary agent and a stabilizing agent which are soluble under strong acid orstrong alkali conditions, and stirring to form composite titaniferous solution; carrying out uniform loading of the obtained product into a wall flow type carrier (such as a ceramic fiber pipe, a filter bag, a basalt filter pipe, a DPF and the like) with rich pore structures in a pressurizing or negative pressure extraction form, wherein the coated carrier can be used for denitration of a fixed source and a movable source. The composite titaniferous solution disclosed by the invention has the excellent properties of ultrafine granularity, high dispersion degree, strong permeability and the like, the production period can be greatly shortened and the production cost can be reduced when the composite titaniferous solution is used for coating the wall flow type carrier, and the produced catalytic purification product can be used for efficiently and synergistically removing various atmospheric pollutants and preventing a catalytic material from poisoning.

The invention relates to a desulfurization method for aluminium oxide production based on high-sulfur bauxite and belongs to the technical field of environmental protection and metallurgy. A reducingagent is added to slurry in a process of aluminium oxide production based on high-sulfur bauxite for desulfurization, wherein the reducing agent is one or a mixture of activated carbon, aluminium, iron and zinc in any ratio. According to the method, variable-valence sulfur such as S<2->, S2O3<2->, SO3<2-> and SO4<2-> in various forms in a solution can be removed, and desulfurization efficiency ishigh; meanwhile, the defect of severe potential safety hazard possibly caused by corrosion of sulfur to a heater wall can be overcome.

The invention relates to the field of biogas utilization pool equipment, in particular to an ecological environment-friendly biogas utilization pool. The biogas utilization pool comprises a biogas digester body; an environment-friendly treatment device is fixedly mounted at the upper end of the biogas digester body; sulfur removal cavities are fixedly formed in the environment-friendly treatment device; a rotating column is movably mounted at the middle end in the environment-friendly treatment device; the outer side of the rotating column is movably sleeved with a dust scraping ring; the twosulfur removal cavities are formed in the two sides of the rotating column correspondingly. Biogas generated by the biogas digester body can be divided into two parts to enter the sulfur removal cavities, therefore, the sulfur removal efficiency is improved; filter screens are fixedly mounted on the two sides of the sulfur removal cavities, iron oxide particles are prevented from leaking, and dustin the biogas is blocked and the dust is prevented from continuously moving upwards; a pulling plate is movably mounted in the sulfur removal cavity, and driving plates are movably mounted on the front side and the rear side in the environment-friendly treatment device, so that biogas cannot linearly penetrate through the sulfur removal cavities through staggered arrangement of the pulling plates, and the sulfur removal effect is further guaranteed.

A lime desulfurization method used in aluminium oxide production follows the principle that lime or lime milk is added into a sulfur-containing sodium aluminate solution to generate two calcium hydroaluminosulfate sediments, and sulfur impurities in the sodium aluminate solution are removed together with the sediments. The lime desulfurization method particularly comprises the following steps: diluting the sulfur-containing sodium aluminate solution with the molar ratio of 3:1 for 3-4 times with water, slowly adding lime milk of 15-20 g/L CaO into the sodium aluminate solution containing 20-30 g/L SO4<2-> ions under a stirring condition, performing purification to realize desulfurization, filtering the purified sodium aluminate solution, and recovering Al2O3 and NaOH. The lime desulfurization method has the following advantages: (1) the desulfurization efficiency is high, and loss of aluminium oxide is reduced; (2) the sulfur dissolution rate and the dissolution speed are high, and the alkali consumption is low; and (3) Al2O3 and NaOH are recycled, and the production cost is lowered. The lime desulfurization method is suitable for aluminium oxide manufacturers.

The invention provides a carbon-molecule gasification combustion boiler engineering operation system. The carbon-molecule gasification combustion boiler engineering operation system achieves the purposes of source pollution prevention and control, element reduction and high-effectiveness utilization of coal resources. The carbon-molecule gasification combustion boiler engineering operation systemhas the advantages that anaerobic sulfur fixation (Ca/S approaches 1) is conducted at a gasification section, and sulfur-containing furnace slag serves as a cement raw material; hot coal gas and air are cross-mixed and are blown downwards to combust (alpha approaches 1 and the air is generally reduced by 10% or more compared with the domestic and overseas advanced direct coal combustion technology), and generation of noxious substances such as SOx and NOx related to oxygen is prevented, controlled and reduced; the combustion volume thermal intensity is 360 kw/m3 and above, the gauge pressure of a coal gas isolating valve is less than 0 pa, and coal gas does not lead in the combustion process; the exhaust gas temperature of a boiler is lower than 106 DEG C; and the whole system is high in energy cleaning and utilization efficiency and low in cost.

The invention discloses a gas desulfurization method and apparatus. The gas desulfurization apparatus comprises a housing, a top plate arranged at the top of the housing, and a bottom plate arranged at the bottom of the housing, as well as a jetting device arranged on the housing and a filtering device arranged inside the housing. The jetting device includes at least two jet pipes; flows jetted from the two jet pipes peripherally move in the housing in the same direction; the filtering device includes filter barrel I and filter barrel II fixed between the top plate and the bottom plate; the filter barrel II is sleeved with the filter barrel I; the bottom plate surrounded by the filter barrel II is provided with an exhaust pipe that guides out the desulfurized gas; the two filter barrels are provided with vent holes allowing gas circulation; a cavity is also arranged in each filter barrel; mesh support bars and a desulfurizing agent are arranged in each cavity. The gas desulfurization method and apparatus have the advantages that the desulfurizing agent can be changed with no interruption, and gas spill during hanging of the desulfurizing agent can be decreased.