36results about How to "Shorten desorption time" patented technology

The method for activated carbon fiber variable voltage desorption gas relates to a method of desorption gas by using activated carbon fiber. The method solves the problem of high energy consumption in the prior art. The method comprises: the two ends of an adsorbent bed are sequentially switched on 4-6V of alternating voltage to be heated for 28-32s, 8-12V of alternating voltage to be heated for 28-32s, 13-17 V of alternating voltage to be heated for 28-32s, 18-22 V of alternating voltage to be heated for 28-32s and 13-17 V of alternating voltage, and is then continuously heated by changing the 13-17 V of alternating voltage into 4-6V of alternating voltage when the temperature reaches 70-72 DEG C; the temperature of the carbon fiber is kept within the range of 69-71 DEG C for 8-12min, and the gas with the mass percent of 90-99% can be obtained by desorption. The method has short desorption time, low energy consumption, and simple operation and technique.

The invention discloses a method for extracting lithium through a split-type adsorption device, comprising: adding an adsorbent to the split-type adsorption device, making a lithium-containing solution flow through the split-type adsorption device, at least part of the lithium-containing solution Lithium ions are adsorbed by the adsorbent; water is made to flow through the segmented adsorption device to desorb the lithium ions in the adsorbent. The invention utilizes a segmented adsorption device to extract lithium from lithium-containing salt lake brine, which can effectively improve the elution rate of lithium, greatly shorten elution time, and save water consumption. The desorption is assisted by an external electric field, and the desorption lasts for 2-4 hours, and the desorption rate of lithium is between 85-92%. Compared with no electric field, the desorption efficiency of the adsorbent to lithium increased by 5-15% after the desorption continued for 2-4 hours. The time for obtaining the same extraction rate of lithium is shortened by 4‑8h through the assisted desorption by an external electric field.

The invention relates to a temperature and humidity sensor of a refrigerated transport carrier and a producing method thereof. A temperature-sensing unit and a humidity-sensing unit of the sensor are respectively fixedly installed in a corresponding square groove produced by a silicon nitride passivation layer. The producing method comprises steps: depositing a thick silicon nitride passivation layer; photoetching and corroding the thick silicon nitride passivation layer to form two chambers used as separating chambers of the temperature-sensing unit and the humidity-sensing unit; installing the temperature-sensing unit and the humidity-sensing unit in a corresponding separating chamber respectively; printing and installing a peripheral processing circuit; and finally packaging and the detecting the whole sensor. The top electrode, the bottom electrode, and the humidity-sensing film of the humidity-sensing unit all use comb-shaped structure. The use of the comb-shaped structure of the electrodes is advantageous in that the capacitance output value of the humidity-sensing unit can be increased. The use of the comb-shaped structure of the humidity-sensing film is advantageous in that the contact area between the film and air is enlarged such that time of water molecules entering and existing the humidity-sensing film is shortened and further the response speed of the sensor is increased. The temperature and humidity sensor is produced by using CMOS technology and has characteristics of microminiaturization and low power consumption.