94results about How to "Short activation time" patented technology

The invention relates to a method for preparing activated carbon with the high specific surface area through rapid activation under fluidization. The method is characterized by comprising steps as follows: 1) a biomass raw material with the particle size ranging from 0.3 mm to 0.9 mm is selected, soaked in a chemical reagent for 3-6 h and dried in a constant-temperature drying box at the temperature of 100-150 DEG C after soaking; 2) after drying, the dried material is stirred or crushed to form particulate materials; 3) a fluidized bed or a spouted bed is used as an activation reactor, the activation reactor is heated to 700-800 DEG C, fluidizing gas is introduced, quartz sand and the particulate materials obtained in the step 2) are placed, activation is performed for 1-10 min, a mixture is discharged immediately after activation and washed to be neutral with water, and the activated carbon with the specific surface area being 1267-1359 m<2> / g is obtained. According to the method, a chemical activation method is combined with the fluidized bed technology, rapid activation preparation of the activated carbon can be realized, the activation time is short, the prepared activated carbon has the relatively high specific surface area, the energy consumption is effectively reduced, and the production cost is reduced.

When a content is playbacked via a network, if a transmission-sided terminal of the content is under stopping condition, then a lengthy time is required until the content is playbacked. When an activation time of a recorder is measured and contents are recorded on this recorder, a content corresponding to the activation time is copied to another recorder so as to be shared by the own recorder and another recorder. In the case that the content is playbacked via the network, the content held in the own recorder is firstly playbacked, and when the recorder holding the content is activated, so that the content can be transmitted, the own recorder directly receives the content from the recorder holding the content to playback the received content.