摘要:
The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide.
摘要:
The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide.
摘要:
A method for concentrating dilute sulfuric acid involves feeding dilute sulfuric acid through at least two electrolytic cells depolarized by sulfur dioxide, and through a cation conductive membrane separating the cathode and anode sides in the electrolytic cell. Also provided is an apparatus for concentrating sulfuric acid, wherein at least a first electrolytic cell is in fluid communication with a second electrolytic cell, and wherein a cation conductive membrane separates the cathode and anode sides in the electrolytic cells.
摘要:
The invention relates to a method for in vitro testing of specimens, such as biomaterials or implants, wherein the method comprises at least immersing at least a part of the test specimen into a liquid media, controlling the liquid media, controlling surrounding environment, providing a predetermined non-destructive force to the specimen, and measuring reactions of the specimen or constituents of the liquid media. Further it relates to an apparatus for in vitro testing.
摘要:
The invention relates to a phase change material (PCM) heat exchanger device comprising heat exchanger cells (1a, 1b) operating on the regenerative countercurrent principle, phase change material (PCM) accumulators (2, 3) provided in the heat exchanger cells and a vortex tube (6, 7, 8). When the directions of the air, gas and liquid flows are cyclically reversed in the apparatus, energy is recovered into the heat exchanger cell and the PCM accumulator, and during the subsequent cycle, the energy is released from the heat exchanger cell and PCM accumulator. While one heat exchanger cell and PCM accumulator is being charged, the other heat exchanger cell and PCM accumulator are simultaneously discharged. The cool/hot flow from the vortex tube is used to enhance/create needed temperature differences. The invention is applicable to buildings, vehicles, climate control rooms, single or multiple devices such as computers, and in various processes, such as, but not limited to, cryogenic methods, and in space technology and supercritical carbon dioxide applications.
摘要:
The invention relates to a method for in vitro testing of specimens, such as biomaterials or implants, wherein the method comprises at least immersing at least a part of the test specimen into a liquid media, controlling the liquid media, controlling surrounding environment, providing a predetermined non-destructive force to the specimen, and measuring reactions of the specimen or constituents of the liquid media. Further it relates to an apparatus for in vitro testing.
摘要:
A phase change material (PCM) heat exchanger device comprising heat exchanger cells (1a, 1b) operating on the regenerative countercurrent principle, one or more phase change material (PCM) accumulators (2, 3) provided in the heat exchanger cells and one or more vortex tubes (6, 7, 8). When the directions of the air, gas and liquid flows are cyclically reversed in the apparatus, energy is recovered into the heat exchanger cell and the PCM accumulator, and during the subsequent cycle, the energy is released from the heat exchanger cell and PCM accumulator. While one heat exchanger cell and PCM accumulator is being charged, the other heat exchanger cell and PCM accumulator is simultaneously discharged. Warm air exits a first outlet port while cold air exits a second outlet port of the one or more vortex tubes. The fluid flows heat or cool the heat exchanger cells and associated PCM accumulators.