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59results about How to "Unlimited scope of protection" patented technology

Method for producing hydrogen by reforming methanol steam

The invention relates to a method for producing hydrogen by reforming methanol steam. The method comprises the following steps: taking methanol and water as raw materials, enabling the reaction temperature to be 410-460 DEG C, enabling the reaction space velocity to be 3000-23000h<-1> (calculated based on gaseous methanol), mixing the raw materials of the methanol and the water under the condition that the molar ratio of methanol to the water is 1: (0.8-2.0) for vaporization, then enabling the mixture to be in contact with a ZnO / ZnAl2O4 catalyst in a fixed bed reactor, generating reformed gaswhich is rich in the hydrogen, and separating the reformed gas by a palladium membrane separator for producing pure hydrogen gas. In the ZnO / ZnAl2O4 catalyst, the zinc-aluminum atomic ratio is more than 0.5: 1 and less than 2.5: 1. The method has the advantages of high reaction space velocity, high reaction conversion rate and low CO concentration, and the catalyst is simple to prepare, good in stability, low in cost and the like, thereby being particularly applicable to the process of integrating the hydrogen production by reforming the methanol steam with palladium membrane separation for preparing the pure hydrogen, and being capable of being used for industrial production process.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Computer data encryption system and method

The invention provides a computer data encryption method which comprises the following steps: establishing communication connection between a computer and an intelligent terminal, acquiring identity information of the intelligent terminal, and generating a corresponding public key and a public key encryption algorithm; performing feedback of the public key and a public key encryption algorithm tothe intelligent terminal by the computer; reading own identity information through the WeChat applet by the intelligent terminal, encrypting the data transmission request by using a public key and a public key encryption algorithm, and transmitting the encrypted data transmission request to the computer; and receiving and decrypting the data transmission request of the intelligent terminal by thecomputer, verifying the identity information of the intelligent terminal, transmitting data to the intelligent terminal if the verification succeeds, and performing feedback of verification failure information to the intelligent terminal if the verification does not succeed. According to the method, the personal private data information of the user can be better encrypted, and the leakage of the personal private data of the user is prevented. Correspondingly, the invention further provides a computer data encryption system.
Owner:QINGYUAN POLYTECHNIC

Electric cooker shell trimming device

The invention discloses an electric cooker shell trimming device. The electric cooker shell trimming device comprises a rack and a conveying device, wherein the conveying device is arranged on one side of the rack and used for conveying an electric cooker shell; a first installing plate is arranged in the vertical direction of the rack; a clamping device is arranged at one end of the first installing plate, and a carrying device is vertically arranged at the other end of the first installing plate; a cutter device is arranged at the middle portion of the first installing plate; the clamping device comprises a first drive device and a suction cup; the suction cup is rotationally connected with the power output end of the first drive device; the carrying device comprises a containing platform and a second drive device; the second drive device drives the containing platform to rotate; the cutter device comprises a cutter, a sliding plate and a third drive device; and the cutter is arranged on the sliding plate, and the third drive device is used for driving the sliding plate to slide in the horizontal direction of the first installing plate. Through the device, trimming treatment is conducted on the electric cooker shell, efficiency is high, the automation degree is high, and the labor cost is saved.
Owner:FOSHAN CHUANDONG MAGNETOELECTRICITY
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