partial oxidation. The coal is fed into a high-temperature pressurized container along with steam and a limited amount of oxygen to produce a gas. The gas is known as synthesis gas or syngas and mainly consists ofcarbon monoxide and hydrogen. The gas is cooled and undesirable components, such as carbondioxide and sulphur are removed. The gas can be used as a fuel or further processed and concen
of applying these processes include drying, spray drying, freeze drying, freezing, vacuum-packing, canning, preserving in syrup, sugar crystallization, food irradiation, and adding preservatives or inert gases such as carbondioxide. Other methods that not only help to preserve food, but also add flavor, include pickling, salting, smoking, preserving in syrup or alcohol, sugar crystallization and
The atmosphere shields us from the sun's cancer-causing ultraviolet (UV) radiation and also moderates the earth's climate.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere can be divided vertically into four m
I. Summary
우리는 가장 먼저 프로젝트를 본격적으로 수행하기에 앞서 배정받은 물질인 Ethylene Oxide의 Pure Compound로서의 기본적인 특성들과 더불어 실제로 우리가 물질을 다루는데 있어서 필요한 합성방법과 취급 안정성에 대해 조사함으로써 실제 실험 시 필요한 기본적인 정보를 취합 정리해 보았다.