33 results about "Amine gas treating" patented technology

In a flue gas treating system, an absorption tower (21), a reheating section (22) and a fan (23) are arranged in line on a vertical axis so as to function as at least a part of a stack for emitting the treated flue gas into the atmosphere. Moreover, in a flue gas treating process, the amount of ammonia injected in the denitration step (a denitrator (2)) and/or the amount of ammonia at a point downstream of the denitration step are determined so as to be on such an excessive level that ammonia or ammonium salt will remain in the flue gas introduced into the desulfurization step (absorption tower (21)). Thus, the size and cost of the equipment can be reduced.

The invention provides a waste gas treating and waste heat recycling device. The device comprises a setting machine, a thermal conductive medium heater, a steam generator and a gas-gas exchanger, and further comprises a gas-liquid exchanger, wherein the gas-liquid exchanger includes a liquid chamber and a gas chamber which are independent mutually; the gas chamber is provided with a gas inlet anda gas outlet; the gas inlet is connected with the waste gas outlet of the gas-gas exchanger by a draught fan, and the gas outlet is connected with the draught fan; the liquid chamber is provided witha water inlet and a water outlet; the water outlet is connected with the steam generator; the thermal conductive medium heater and the setting machine form a return circuit therebetween by an outlet medium pipe and a return medium pipe; and the steam generator is arranged on the return circuit. In addition, the invention further provides a waste gas treating and waste heat recycling method. The waste gas treating and waste heat recycling device disclosed by the invention is simple in structure and simple in operation, makes full use of heat energy of waste gases, reduces production cost, and is energy-saving and environmentally-friendly.

A method for removing polymer from an acid gas treating system comprising contacting an acid gas containing stream with an aqueous alkanolamine solution and hydrocarbon solvent to form a mixture of an alkanolamine rich solution having the acid gases or byproducts thereof contained therein and the hydrocarbon solvent, where the hydrocarbon solvent has about 60 to 100 volume % aromatics content; and about 50 to 85 volume % two ring aromatic content, based on the total volume of the solvent.

The invention discloses a waste gas treatment system. The waste gas treatment system comprises a waste gas pretreatment device, an adsorption system, a desorption device and a catalytic combustion device. The waste gas pretreatment device is used for pre-treating waste gas from a waste gas source; the adsorption system is provided with an adsorption unit and used for performing adsorption treatment on waste gas treated by the waste gas pretreatment device; the desorption device comprises a desorption draught fan and a desorption valve; the desorption draught fan is connected with the adsorption unit; the desorption valve is arranged between the adsorption unit and the desorption draught fan and used for turning on/off the adsorption unit; the desorption draught fan is used for introducing hot air into the adsorption unit to obtain organic waste gas through desorption of the adsorption unit; a catalytic combustion bed is arranged on the catalytic combustion device, is communicated with the adsorption unit, and is used for sucking the organic waste gas desorbed from the adsorption unit, and decomposing the organic waste gas into CO2 and H2O through combustion. The waste gas treating system is simple to operate, high in purification efficiency, capable of saving energy and reducing consumption, and high in degree of automation.

A process for the selective absorption of acidic components from normally gaseous hydrocarbon mixtures using an aqueous amine absorbent solution comprising an antioxidant and a non-detergent co-solvent for the amine and the antioxidant.

The invention relates to a low-energy-consumption zero-emission evaporated gas treating system of a liquefied natural gas (LNG) receiving station. The characteristics that wharf unloading pipelines need to be opened in normal operation working conditions and intermittent zero outward conveying working conditions of the LNG receiving station for cold insulation circulation are utilized, an LNG refrigerating branch is arranged on a cold insulation circulation pipeline of the existing wharf discharging pipeline of the LNG receiving station, LNG is led out from the cold insulation circulation pipeline and further cooled by aid of a refrigerating device, and the cooled LNG is fed back to a previous pre-cooling spraying system at the top of an LNG storage tank and sprayed into the LNG storage tank through the previous pre-cooling spraying system, so that boiled off gas (BOG) in the tank can be absorbed, and zero-emission treatment of the BOG can be achieved. The low-energy-consumption zero-emission evaporated gas treating system is particularly suitable for peak adjusting type LNG receiving stations, can ensure safe operation of the system under the working conditions of intermittent zero outward conveying, can avoid huge waste caused by the traditional BOG discharging depressurizing mode and has outstanding economic benefit.

The invention discloses an organic waste gas treatment system, which comprises a suspended hood, an exhaust duct system, an electronic control system and a waste gas treating system, and is characterized in that the waste gas treating system comprises a wet-type scrubbing tower, an exhaust fan and a dry-type activated carbon absorption tower, the suspended hood is connected with the wet-type scrubbing tower, the outlet of the wet-type scrubbing tower is provided with the exhaust fan, the exhaust fan is connected with the dry-type activated carbon absorption tower, and a flue is connected with the dry-type activated carbon absorption tower. The organic waste gas treatment system has the beneficial effects that the comprehensive wet-type water scrubbing and dry-type absorption are adopted, waste gas first enters the wet-type scrubbing tower, then is subjected to absorption treatment of the double-stage activated carbon absorption tower, the process structure is simple, the ventilation quantity and wind pressure are uniform, dry-type activated carbon is small in consumption, the efficiency is high, the equipment is stable in operation, the waste gas is thoroughly treated, and the national requirements on discharge standard are met.

A paint-contained air treating system for the painting rooms is composed of more than two sets of stage-one air treating unit, one set for one painting room, a stage-two air cleaning unit with an exit communicated to atmosphere, and a buffer container connected between said air treating units and air cleaning unit for the flow matching.

The invention relates to the technical field of dry distilling equipment and provides an oil sand dry distilling system. The oil sand dry distilling system comprises a feeding system, a drying and cooling system, a dry distilling and heat supply system, a dry distilling gas treating and recycling system, a flue gas treating system, an oil storage system and a circulating water system, wherein the feeding system comprises a raw material feeding device and a raw material storing device; the drying and cooling system comprises a scraper dryer; the dry distilling and heat supply system comprises a dry distilling device and a heat supply mechanism; the dry distilling gas treating and recycling system comprises a heating area dry distilling gas treating recycling device and a dry distilling area dry distilling gas treating recycling device; the flue gas treating system comprises a wet dust collector; the oil storage system comprises an oil storage tank used for storing end product of oil; the circulating water system comprises a centrifugal water pump and a water reservoir; and the continuous dry distilling for the oil sand is realized, the dry distilling speed is high, the energy consumption is low and the service life of the system is prolonged.

The invention provides a bio-enzyme device. The bio-enzyme device comprises a box body and a plurality of solution sucking rods, wherein the box body comprises a top frame, a middle frame and a bottom frame, a microbial culture solution and/or a nutrient solution are separately accommodated in the top frame and the bottom frame, one pair of opposite sides of the middle frame are run-through and can enable gas flow to pass through, the solution sucking rods are arranged in the middle frame, and the two ends of each solution sucking rod separately extend into the top frame or bottom frame so as to suck the solution in the top frame or bottom frame. The bio-enzyme device provided by the invention is simple in structure and has a good enzyme digestion effect on VOC, and the VOC gas treating system with the bio-enzyme device can be used for adequately removing organic components from VOC gases.

The invention provides a gas treating tower and a gas treating system. The gas treating tower is used for gas purification or separation and comprises a tower body, a packing layer and a pipeline spray-washing system, wherein at least one packing layer is arranged in and across the tower body, and the sidewalls of the packing layer are connected with the peripheral inner wall of the tower body; the pipeline spray-washing system is arranged in the tower body and used for flushing the packing layer; and the packing layer comprises a silk screen layer and a plurality of spherical filling materials arranged in the silk screen layer. According to the gas treating tower, since the packing layer is arranged in the tower body, when flue gas passes through the packing layer, the packing layer can realize better gas-liquid distribution and sufficient contact and effectively eliminates rotation of rotationally-flowing gas and disperses the rotationally-flowing gas; entrainment and flue dust entrained in gas are effectively and rapidly adsorbed and intercepted by the spherical filling materials and a liquid film formed by the filling materials; so the purpose of cleaning flue gas is achieved, and flue gas purifying efficiency is improved. Meanwhile, the pipeline spray-washing system is employed for flushing flue gas, so flue gas is further purified.

An exhaust gas treatment system of the present invention includes a pretreatment device, a photooxidation device, and an air induction and discharge device connected in sequence; the pretreatment device includes a pretreatment tank and a catalytic tank, and the top of the pretreatment tank is provided with a first air inlet, The upper side of the pretreatment tank is provided with a first gas outlet, the pretreatment tank is provided with an electric shock magnetic resonance device, and the catalytic tank is located at the lower part of the pretreatment tank, wherein the catalytic tank is an inverted cone catalytic tank; the photooxidation device includes photooxidation Housing, the top of the photo-oxidation housing is provided with a second air inlet connected to the first air outlet, and the upper side of the photo-oxidation housing is provided with a second air outlet connected to the draft and discharge device. A photo-oxidation module and a swivel device are provided. The swivel device includes a swivel disc body, which communicates with the second air inlet, and the photo-oxidation module is located in the swirl disc body. The invention provides an energy-saving, high-efficiency, and environment-friendly waste gas treatment system which adopts the structural form combining electric shock magnetic resonance technology and photo-oxidation technology.

The invention discloses a medicine for painless treating of gingivitis and a preparation method thereof, and belongs to the technical filed of dental medicine preparation. The medicine for treating ofgingivitis is prepared from the following raw materials in parts by weight: 2-10 parts of zinc gluconate, 1-5 parts of borneol, 1-4 parts of thymol crystals, 30-50 parts of ethyl alcohol, 3-9 parts of antibacterial agents, 20-40 parts of traditional Chinese medicine composition extracting solutions, 3-7 parts of polylysine, 4-10 parts of chitosan powder, 5-9 parts of anti-inflammatory agents, 1-5parts of alanyl glutamine, 3-9 parts of alleviators, 2-6 parts of dexamethasone sodium phosphate, 3-9 parts of surfactants, and 1-4 parts of cetyl pyridine chloride. According to the medicine for painless treating gingivitis, the good effect on treating gingivitis is achieved, the pain when the medicine acts is relieved, recovery of gingivitis is facilitated, and broad clinical application prospects are achieved.

The invention relates to the field of biodiesel, in particular to a biodiesel esterification method. The method comprises the steps of gas treating and cyclic mixing. Gas which is originally acidic in an esterification reaction is treated with alkaline liquor, proceeding of the esterification reaction is effectively promoted through multiple mixing effects, therefore, the esterification reaction time can be effectively shortened, and then the biodiesel preparation cycle can be shortened; in addition, pollution can be reduced, the cost can be reduced, and the methanol recycling rate can be increased.

A method for removing polymer from an acid gas treating system comprising contacting an acid containing stream with an aqueous alkanolamine solution and hydrocarbon solvent to form a mixture of an alkanolamine rich solution having the acid gases or byproducts thereof contained therein and the hydrocarbon solvent, there the hydrocarbon solvent has about 60 to 100 volume % aromatics content; and about 50 to 85 volume % two ring aromatic content, based on the total volume of the solvent.