Japan Tobacco Inc.

Jx Nippon Oil Energy Corporation

Nippon Oil Corporation

Koji Shimada

Yoshihiro Yamazaki

Kazuyuki Suzuki

Hideshi Iki

Shigeto Hatanaka

Naoya Saito

A mixing device used in a fluidized catalytic cracking apparatus which mixes feed and a catalyst includes a cylindrical reaction container which supplies a catalyst in a vertical direction; a plurality of feed injection nozzles arranged along an outer circumference of the reaction container; and a catalyst flow regulator which is provided in the reaction container and regulates a flow of the catalyst in the vicinity of the feed injection nozzles. The catalyst flow regulator has no feed supply function and forms a catalyst moving bed having a hollow tubular shape which is coaxial with the reaction container in the vicinity of the feed injection nozzles. The catalyst flow regulator can effectively prevent backward flow of injected fuel. Although the mixing device has a simple structure, it has a high cracking rate and maintenance of the fluidized catalytic cracking apparatus can be performed easier.

Mixing device for mixing raw material and catalyst in fluid catalytic cracking device

The production process of the invention comprises a first step of hydrodesulfurizing of catalytically-cracked gasoline so as to result in an olefin hydrogenation rate of no greater than 25 mol % in the catalytically-cracked gasoline, a total sulfur content of no greater than 20 ppm by weight based on the product oil weight, a sulfur content derived from thiophenes and benzothiophenes of no greater than 5 ppm by weight and a sulfur content derived from thiacyclopentanes of no greater than 0.1 ppm by weight, and a second step of further hydrodesulfurizing of the product oil obtained by the first step so as to result in a total of no greater than 30 mol % for the olefin hydrogenation rate in the first step and the olefin hydrogenation rate in the second step, a total sulfur content of no greater than 10 ppm by weight based on the product oil weight, and a sulfur content derived from thiols of no greater than 5 ppm by weight.

Process for producing gasoline base and gasoline

A slicing apparatus for dividing a compression-molded article of laminae is provided with a dividing knife that reciprocates within a horizontal plane, and the dividing knife has a cutting edge in the shape of a V directed toward the compression-molded article, and cuts into the compression-molded article while holding the article from both sides.

Apparatus for slicing compression molded product of sheet-shaped material and split knife

Growing community of inventors

Yokohama, Japan

Koji Shimada