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4818 results about "Air bubble" patented technology

Method and means for capture and long-term sequestration of carbon dioxide

InactiveUS20090081096A1High heat of reactionHigh regeneration energyCombination devicesGas treatmentSolubilityAmbient pressure
The invention teaches a practical method of recovering CO2 from a mixture of gases, and sequestering the captured CO2 from the atmosphere for geologic time as calcium carbonate and provides a CO2 scrubber for carbon capture and sequestration. CO2 from the production of calcium oxide is geologically sequestered. A calcium hydroxide solution is produced from the environmentally responsibly-produced calcium oxide. The CO2 scrubber incorporates an aqueous froth to maximize liquid-to-gas surface area and time-of-contact between gaseous CO2 and the calcium hydroxide solution. The CO2 scrubber decreases the temperature of the liquid and the mixed gases, increases ambient pressure on the bubbles and vapor pressure inside the bubbles, diffuses the gas through intercellular walls from relative smaller bubbles with relative high vapor pressure into relative larger bubbles with relative low vapor pressure, and decreases the mean-free-paths of the CO2 molecules inside the bubbles, in order to increase solubility of CO2 and the rate of dissolution of gaseous CO2 from a mixture of gases into the calcium hydroxide solution.
The CO2 scrubber recovers gaseous CO2 directly from the atmosphere, from post-combustion flue gas, or from industrial processes that release CO2 as a result of process. CO2 reacts with calcium ions and hydroxide ions in solution forming insoluble calcium carbonate precipitates. The calcium carbonate precipitates are separated from solution, and sold to recover at least a portion of the cost of CCS.

Automated strontium-rubidium infusion system

This invention relates to medical engineering, in particular, to means of automation of the process of generating a diagnostic solution from a radionuclide strontium-rubidium generator and performing of remote controlled infusion, with automatic control over the key characteristics of the process. The automated strontium-rubidium infusion system comprises a container with eluent, a strontium-rubidium generator with a filter and a pressure sensor at the input, an eluate infusion unit, which are connected by means of a transporting system provided with pipes and two three-way valves, radioactivity measuring means and a control and operating unit. Here, an eluent container is connected to a syringe pump via the first and second ports of the first three-way valve, the first port of the second three-way valve is connected with pipes via the second filter to the eluate infusion unit, and the second port is connected to a waste receptacle. The system additionally comprises the third and fourth three-way valves, the first and second air bubbles detectors are connected to the control and operating unit connected with a computer, where the third three-way valve is connected with its first and second ports via pipes to the third port of the first three-way valve and the input of the strontium-rubidium generator, respectively. The generator output is connected to the first port of the fourth three-way valve, where the third port of the third valve and the second port of the fourth valve are connected with a pipe, the first air bubbles detector is placed on the pipeline between the eluent container and the first port of the first valve, and the second air bubbles detector is placed on the pipeline between the third ports of the fourth and second valves.
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