抄録
In 1937, a coal-liquidification plant was constructed in Aoji, North Korea, for the memory of the 30th anniversary of the establishment of the Nippon Chisso Hiryo Co., with the purpose of realizing the industrial production of man-made petroleum.
In order to get hydrogen economically in a large scale, a slag-tap gas producer with oxygen burners was installed. After 3 years struggling development, the producer showed a high efficiency in the gas generation with the semi-coke of low grade Aoji coal. Still hydrogen could be supplied only in the lowest amount necessary to operate the liquidification reactor.
Although ZnCl2 was originally planned to be used as the catalyst according to the Japanese Navy researches, ZnCl2 was not suited to the reactor of an internal heating system. Therefore Fe (OH) 3-S catalyst was chosen as the most suitable, after many canditate substances were checked.
Electric heating coil arranged in the centre of the reaction vessel was made of HCM5 steel pipe.
In Aug. of 1943, the reactor had realized the continuous run for a full month, except for one interruption caused by a trouble on the electric power supply system, processing 10.0-11.5 tons of the feed paste per hour. This corresponds to the space time yield of 1.0-1.2kl/hr/m3.
The reactor showed a very high heat efficiency. The heat necessary for this reactor operation might be less than 1/3 of that for ordinary liquidification reactors.
