37results about How to "Meet Response Needs" patented technology

The invention discloses a hydrocracking catalyst grading method and a catalytic diesel oil hydro-conversion process. The grading method comprises steps as follows: a hydrocracking reactor is equally divided into 2-8 reaction zones in the material flow direction, each reaction zone is filled with a hydrocracking catalyst containing a regenerant, on the basis of the weight of the hydrocracking catalyst, the content of the regenerant in the hydrocracking catalyst is 10wt%-90wt%, and the content of the regenerant in the hydrocracking catalyst in each reaction zone in the material flow direction is gradually increased. The invention further provides the catalytic diesel oil hydro-conversion process including the hydrocracking catalyst grading method. The cracking reactor is filled with catalysts with different reaction properties in a graded manner, so that the hydrogenation selectivity of diesel oil / gasoline components in the conversion process is improved, and the yield of a high-octane gasoline product is increased.

The invention discloses a code management control method. The method comprises the steps that a code auditing server performs auditing on multiple source codes archived by multiple version management tools in real time; the version management tools receive a submitting application of a current code, queries an auditing condition of the source code corresponding to the current code in the code auditing server, and judges whether the auditing condition is passed or not; and if yes, the version management tools receive the current code and perform storage. According to the method, the code auditing server supports code management control of the version management tools at the same time, and meets response demands of co-processing order businesses. In addition, after the version management tools receive the current code and perform the storage, the code auditing server performs auditing on the current code, namely, the demand of storage before auditing is met.

The invention discloses a combined hydrotreatment method, comprising the following steps of: allowing a wax oil raw material and hydrogen to pass through a first hydrogenation reaction zone and separating a reaction effluent; mixing an obtained gas phase and coker gasoline and allowing the mixture to pass through a second hydrogenation reaction zone; directly mixing the reaction effluent and a diesel oil raw material and letting them pass through a third hydrogenation reaction zone, and carrying out separation and fractionation on the obtained reaction effluent so as to obtain refined gasoline and diesel oil; mixing the diesel oil and supplemented hydrogen and letting them pass through a fourth hydrogenation reaction zone, and dropping pour point. By the adoption of the method, heat brought from a gas generated from wax oil hydrotreatment at a higher temperature and reaction heat of coker gasoline can be reasonably utilized; and on the basis of minimizing construction investment to the maximum, refined gasoline, diesel oil with low condensation point and high-quality catalytic cracking raw oil can be produced, thus reaching an ideal comprehensive processing effect.

The invention relates to a device for industrially producing hydroxyl acetonitrile. The device adopts a hydrocyanic-acid hydroxymethylation method for production and comprises a first-order reaction unit and a second-order reaction unit, wherein the first-order reaction unit comprises a first-order reactor and a first-order circulating tank connected with the first-order reactor; the second-order reaction unit comprises a second-order reactor and a second-order circulating tank connected with the second-order reactor; and the first-order reactor is also respectively connected with the second-order reactor and the second-order circulating tank. The device is characterized in that during operation, the first-order reaction unit uses low-concentration formaldehyde to absorb hydrocyanic acid so as to obtain first-order absorbing liquid; the second-order reaction unit uses high-concentration formaldehyde to absorb the hydrocyanic acid which is not completely absorbed so as to obtain second-order absorbing liquid; and then the second-order absorbing liquid enters the first-order reaction unit for continuous reaction. The device has the advantages that the absorption of the hydrocyanic acid by using the formaldehyde material with high concentration and low concentration is realized, the utilization rate of the hydrocyanic acid is high, the residual amount of the formaldehyde in an obtained product is low, and high-efficiency industrial production of the hydroxyl acetonitrile can be carried out.

The invention relates to a method applied to industrial continuous production of hydroxy acetonitrile. The method comprises the following steps: diluting a high-concentration formaldehyde raw material into low-concentration formaldehyde by using qualified hydroxy acetonitrile by virtue of a hydrocyanic acid hydroxyl methylation method, reacting the low-concentration formaldehyde with hydrocyanic acid to prepare a qualified hydroxy acetonitrile product; and extracting one part of the qualified hydroxy acetonitrile product as product collection and extracting the other part of the qualified hydroxy acetonitrile product as a circulation solution for diluting the continuously supplied high-concentration formaldehyde into low-concentration formaldehyde, continuously reacting the low-concentration formaldehyde with the continuously supplied hydrocyanic acid, and circulating in the manner to continuously produce the qualified hydroxy acetonitrile product. By virtue of the method, the industrial continuous production of the hydroxy acetonitrile is implemented; the produced hydroxy acetonitrile product is high in yield and extremely low in formaldehyde residue; the high-concentration industrial formaldehyde can be directly used; and the hydrocyanic acid serving as the raw material can be fully utilized.