摘要:
The invention relates to a method and an apparatus for dewatering mixture of ethanol and water. The method for dewatering mixture of ethanol and water in a pervaporation process arranged to dewater ethanol, to the retentate, from water as enriched to the permeate. In the method at least one of the streams of the permeate that is about to be cooled, before the entry of the stream into a vaporizer (2) arranged to vaporize at least partly once processed ethanol-water mixture by the pervaporation process, or another permeate stream upstream of pervaporation unit, is taken (HEXI) in the cooling phase of said at least one of the streams of the permeate, so that said heat taken is at least partly directed as secondary energy into the use for heating of the mixture of the ethanol and the water that is entering into the pervaporation unit, which is arranged to dewater the mixture of the ethanol and water by pervaporation. The invention relates also to a heat exchanger, use of the heat exchanger in general, but specifically in a pervaporation process for de-watering of ethanol-water mixture. The invention also relates to pervaporation unit comprising such a heat exchanger, and also to utility unit for ethanol rectification using the heat exchanger.
摘要:
Teleconferencing and, in particular, distributed teleconferencing may use methods and systems for location grouping to reduce feedback and other audio anomalies. Terminals and users connected to the same teleconference and in the same location might not need to receive audio signals from the other terminals and users in the same location. As such, by detecting and analyzing the location of each participating terminal, the terminals (and thus, the users thereof) may be organized into location groups to provide proper audio mixing. In one example, first and second terminals in the same location might not receive each other's audio in a downstream teleconference signal. The location and grouping of terminals may be processed using context fingerprint information derived from sensor readings of each terminal. Sensors may include GPS sensors, cameras, BLUETOOTH sensors and the like. Context fingerprint information may further be synchronized to enhance location determination and grouping.
摘要:
Method and apparatus for enhancing a coded audio signalcomprising indices which represent audio signal parameters which comprise at least a first parameter representing a first characteristic of speech are disclosed. A current first parameter value is determined from an index corresponding to at least the first parameter. The current first parameter value is adjusted in order to achieve an enhanced first characteristic, thereby obtaining an enhanced first parameter value. A new index value is determined from a table relating index values to at least first parameter values, such that a new first parameter value corresponding to the new index value substantially matches the enhanced first parameter value.
摘要:
The invention relates to a method and an apparatus for processing waste (1) containing fermentable raw materials selected from sugars and raw materials such as starch and cellulose capable of being saccharified into fermentable sugars. The method includes a crushing step for forming fine-divided waste (30), a saccharification step for saccharifying with saccharifying enzymes (20) the fine-divided waste (30) to obtain saccharified fine-divided waste (31), a fermentation step for fermenting with an ethanol-producing microorganism (23) said saccharified fine-divided waste (31) to obtain fermented fine-divided waste (32) containing mixture of ethanol and water (25), and a vaporization step for at least partly separating by vaporization said mixture of ethanol and water (25), a dehydrating step for at least partly dehydrating said fermented fine-divided waste (32) to form dry matter (24).
摘要:
Teleconferencing and, in particular, distributed teleconferencing may use methods and systems for location grouping to reduce feedback and other audio anomalies. Terminals and users connected to the same teleconference and in the same location might not need to receive audio signals from the other terminals and users in the same location. As such, by detecting and analyzing the location of each participating terminal, the terminals (and thus, the users thereof) may be organized into location groups to provide proper audio mixing. In one example, first and second terminals in the same location might not receive each other's audio in a downstream teleconference signal. The location and grouping of terminals may be processed using context fingerprint information derived from sensor readings of each terminal. Sensors may include GPS sensors, cameras, BLUETOOTH sensors and the like. Context fingerprint information may further be synchronized to enhance location determination and grouping.
摘要:
The invention relates to a method and an apparatus for dewatering mixture of ethanol and water. The method comprises steps for feeding mixture of ethanol and water (1) into an evaporator (2), evaporating said mixture of ethanol and water (1) and feeding a stream of vaporized mixture of ethanol and water (3) to a vapor recompression unit (4), pressurizing vaporized mixture of ethanol and water (3) in the vapor recompression unit (4) and feeding a stream of pressurized vaporized mixture of ethanol and water (5) to a membrane unit (6), and dividing said stream of pressurized mixture of ethanol and water (5) in to a stream of mixture of ethanol and water (8) and into a stream of dewatered mixture of ethanol and water (7).
摘要:
The invention relates to a method and apparatus for preparing an ethanol/water mixture, in which fermentable raw materials selected from sugars and raw materials capable of being hydrolyzed into fermentable sugars, and the necessary auxiliary substances are fed into a reactor; the raw materials are fermented in the reactor, ethanol/water mixture is separated from the reactor fermentation solution in an evaporator; and non-fermented matter is removed from the reactor. According to the invention, the reactor fermentation solution is fed continuously into a first falling-film evaporator during fermentation; the ethanol/water mixture is evaporated in the first falling-film evaporator, the evaporate obtained from the evaporator is condensed, and the condensed ethanol/water mixture is concentrated in a second falling-film evaporator, which is arranged in series with the first falling-film evaporator; water is removed as underflow from the second evaporator; and non-volatile matter is removed from the first evaporator and is recycled to the reactor.
摘要:
Method and apparatus for enhancing a coded audio signal comprising indices which represent audio signal parameters which comprise at least a first parameter representing a first characteristic of speech are disclosed. A current first parameter value is determined from an index corresponding to at least the first parameter. The current first parameter value is adjusted in order to achieve an enhanced first characteristic, thereby obtaining an enhanced first parameter value. A new index value is determined from a table relating index values to at least first parameter values, such that a new first parameter value corresponding to the new index value substantially matches the enhanced first parameter value.
摘要:
The invention relates to a method and an apparatus for dewatering mixture of ethanol and water. The method comprises steps for feeding mixture of ethanol and water (1) into an evaporator (2), evaporating said mixture of ethanol and water (1) and feeding a stream of vaporized mixture of ethanol and water (3) to a vapor recompression unit (4), pressurizing vaporized mixture of ethanol and water (3) in the vapor recompression unit (4) and feeding a stream of pressurized vaporized mixture of ethanol and water (5) to a membrane unit (6), and dividing said stream of pressurized mixture of ethanol and water (5) in to a stream of mixture of ethanol and water (8) and into a stream of dewatered mixture of ethanol and water (7).
摘要:
The invention relates to an apparatus for recovery of organic compounds and drying organic mass. The apparatus comprises a dryer incorporating a dryer vessel equipped with a material inlet nozzle, a material outlet nozzle and a gas discharge nozzle. The apparatus comprises a column communicating with the gas discharge nozzle of the dryer vessel for feeding discharge gas exiting via the gas discharge nozzle of the dryer vessel to the column in order to concentrate in the column the discharge gas or the portion of the discharge gas at least partially condensed. To the gas discharge nozzle is connected a boiler for transferring the thermal energy of the discharge gas flowing through the gas discharge nozzle at least partially to the column.