2results about How to "High salt concentration" patented technology

The invention belongs to the technical field of natural gas storage, and discloses a salt cavern gas storage building method based on twin-well cavity building, comprising: S1, determining the site of a salt cavern gas storage, deploying a cluster well site within the range of the site, the cluster well site comprising a plurality of salt cavities corresponding to the same well site platform; s2, each salt cavern is built through double wells, the double wells comprise the first well and the second well, and the distance between the center line of the first well and the center line of the second well ranges from 20 m to 40 m; and S3, after twin-well cavity construction is completed, gas injection and production are conducted on the salt cavity. According to the method, the cavity construction speed can be increased, the library construction period is shortened, and the overall construction cost is reduced.

A continuous production apparatus for nylon 66 includes a concentration tank, a prepolymerization reactor, and a final polymerization reactor. The inlet of the concentration tank is connected to a nylon 66 salt solution device, and the outlet of the concentration tank supplies feed to the prepolymerization reactor via a reaction preheater. The outlet of the prepolymerization reactor supplies feed to the final polymerization reactor via a feeding pipeline and a flash evaporator. The feeding pipeline is connected to a titanium dioxide suspension device. This invention has a simple structure, is easy to operate, and can continuously produce high-quality full-matte / semi-matte nylon 66 materials.