Abstract
(1) Comparing results on and after second time in serial distillations, the wood of low moisture content gave a little more acetic acid, tar and charcoal than the one of high moisture content, but in the latter, the amount of fixed carbon was found to be larger than in the former.
As regarding to the amount of consumed fuel, in such a scale as this retort, the remarkable difference by moisture content of wood, was not found at the succeeding times off serial distillations.
(2) The moisture content of wood gave no obvious effect on the time necessary for distilling of wood at the succeeding times of serial distillations, but at the first time, the wood of higher moisture content consumed more fuel and long time for its distilling.
(3) By passing the hot exhausted gas of fire-place through the retort, fuel and time was reduced, especially the fuel was reduced in the first time of serial distillations.
Then by such a treatment, the amount of distilled water at the dehydrating period was increased and at the carbonizing period, pyroligneous liquor was condensed.
(4) Independently of passing the hot exhausted gas through and the moisture content of wood, in serial distillations, the great difference was observed between the first time and the succeeding times, that is .... at the succeeding times, amount of-fuel was reduced to 60% of it at the first time and the distilling time was shortened an hour.
