Mitsubishi Kakoki

COPSA [CO pressure swing adsorption] A process similar to COPISA but using activated charcoal impregnated with cuprous chloride as the adsorbent for carbon monoxide. Developed by Mitsubishi Kakoki Kaisha. 

DIAMOX A process for removing hydrogen sulfide and hydrogen cyanide from coke oven gas by absorption in aqueous ammonia. Developed by Mitsubishi Chemical Industries and Mitsubishi Kakoki Kaisha and operated in Japan. 

HYSEC A process for purifying hydrogen from coke-oven gas by PSA, developed by Mitsubishi Kakoki Kaisha and the Kansai Coke Chemicals Company. 

The HYSEC Process was developed by Mitsubishi Kakoki K. Ltd. and The Kansai Coke Chemicals Company. It has basically the same PSA unit as the UCC Process. It has prefilter beds with activated carbon that remove dirty components. After the main PSA beds, trace amounts of remaining oxygen are removed by a deoxo catalytic converter followed by a zeolitic dehumidifier. A Ni-LaaOj-Rh catalyst, supported on silica, could lower the reaction temperature to about 30°( a. 

FIGURE 58.1 A process combining solid-liquid separation and drying (1, drum filter 2, drum filter 3, disk filter 4, centrifuge 5, rotary kiln 6, spray dryer 7, conveyor dryer). (From Mitsubishi Kakoki Kaisha, Ltd., Catalog 7-1-1 02-01B-P. With permission.)... 

FIGURE 58.8 Nutsche filter (1, feed 2, impeller 3, filter plate 4, cake-discharge door drive 5, cake-discharge door 6, outlet 7, filtrate 8, filter opening cylinder 9, washing device 10, impeller drive cylinder 11, impeller drive). (From Mitsubishi Kakoki Kaisha, Ltd. With permission.)... 

FIGURE 58.18 Peeler centrifuge with rotary siphon (1, slurry 2, feed pipe 3, cake 4, siphon holes 5, basket 6, slurry 7, wash pipe 8, peeling device 9, peeling knife 10, solid 11, solids chute 12, filtrate 13, liquid layer 14, siphon pipe). (From Mitsubishi Kakoki Kaisha, Ltd., licensed by Kracess Maffei Process Technology AG. With permission.)... 

Figure 1.15 Photograph of a vane decanter centrifuge (Mitsubishi Kakoki Kaisha). The motor drive and gearbox are visible at the right hand end of the unit. Additional discs, the vane stack, are included in the cylindrical portion of the bowl to provide larger areas for separation and enhanced capacity.

Figure 1.17 Photographs of a siphon peeler centrifuge (/eft), with permission from Mitsubishi Kakoki Kaisha (under license from Krauss-Maffei), and a vertical basket centrifuge [right] with permission from Mitsubishi Kakoki Kaisha.

Mitsubishi Kakoki Kaisha Sumitomo Tanabe Tomoe Sweden... 

The DIAMOX process, which was developed jointly by Mitsubishi Chemical Industries (MCI) and Mitsubishi Kakoki Kaisha (MKK) in Japan, is described by Hiraoka et al. (1977) and Fumio (1986). The flow arrangement is similar to the basic scheme shown in Figure 4-24. It is claimed that the process will remove over 98% of the hydrogen sulfide from coke-oven gas and produce a purified gas stream containing less than 8 grains of hydrogen sulfide per 100 scf. 

Fumio, S., 1986, Diamox Process in Process Handbook 3, Mitsubishi Kakoki Kaisha, Ltd. Kawasaki, Japan. 

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