AMTPACIFIC CO., LTD Patent applications |
Patent application number | Title | Published |
20150122630 | LIQUID DISPENSING DEVICE - The present invention relates to a liquid dispensing device which is placed inside a distillation column and can precisely control the supply ratio of a liquid to continuously supply the liquid. The liquid dispensing device is placed inside a distillation column, thereby reducing the total installation space. | 05-07-2015 |
20140343320 | DEVICE AND METHOD FOR SEPARATING OFF WATER AND RECOVERING A CARBOXYLIC ACID FROM REACTOR DISCHARGE DURING AN AROMATIC COMPOUND OXIDATION REACTION USING ENERGY DONATING COUPLED DISTILLATION - Provided is a method of separating off reaction product water and recovering a carboxylic acid used as a solvent in a reactor from a reactor discharge during oxidation of an aromatic compound, and more particularly, a method of separating off reaction product water and recovering a carboxylic acid used as a solvent in a reactor from a reactor discharge during oxidation of an aromatic compound, wherein during the oxidation of the aromatic compound, the reactor discharge is led into two or more dehydration towers having different operating pressures such that a condenser of one dehydration tower operates as a reboiler of another dehydration tower, thereby remarkably reducing energy consumption. | 11-20-2014 |
20090326264 | REDUCING METHOD OF WATER FROM REACTOR OUTLET GAS IN THE OXIDATION PROCESS OF AROMATIC COMPOUND - The present invention relates to a method of reducing water from the reactor outlet gas in the oxidation process of an aromatic compound, for example, in the preparation of terephthalic acid by oxidation of xylene in an acetic acid solvent. As water is removed from the reactor outlet gas at the first absorption tower, the amount of water inflow to the dehydration tower is reduced and, thus, the amount of steam required to separate water and acetic acid at the dehydration tower is reduced and the load of the dehydration tower can be decreased. Further, by carefully controlling the flow amount of the reactor outlet gas to the first absorption tower, the operation of the dehydration tower may be made unnecessary. | 12-31-2009 |