carbon dioxide and produce methane through anaerobic respiration (Rice and Claypool, 1981). When a coal’s temperature underground reaches about 122 degrees Fahrenheit, and after a sufficient amount of time, most of the biogenic methane has been generated. Also at this time nearly two thirds of the moisture has been expelled and the coal has reached a rank of subbituminous (Rightmire, 1984).
Af
formula
KH₂PO₄
Melting point
96℃
Specific gravity
2.238g/ml
Solubility
26g/100gH₂O (25℃)
Molecular weight
136.09
PH
4.2~4.9 (25℃)
system of crystallization
tetragonal system
Table. 3. KDP(KH₂PO₄)
The growth of KDP and CuSO₄single crystals were carried out by the temperature decrease method and the constant temperature method. The
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 of carbon monoxide and hydrogen. The gas is cooled and undesirable components, such as carbon dioxide and sulphur are removed. The gas can be used as a fuel or further processed and concentrated into a chemical or liquid fuel.
Integ
temperatures. As products, we could obtain char, oil and gas. Higher reaction temperature favored for the production of gas and around 500℃, the production of bio-oil was optimized. When smaller size feed applied, more oil and less char was obtained. Gas analysis resulted that fast pyrolysis could reduce 80% CO2 ,compared with combustion.
1. 서론
화석연료의 고갈로 인해 국제
temperature and pressure. The catalyst in commercial ammonia synthesis is usually an iron oxide mixed with a small amount of additional "promoter" material. When the process begins, the hydrogen gas converts the catalyst to pure iron. Gradually, as the iron catalyst is poisoned by carbon and sulfur compounds, it becomes less effective and must be replaced. Nitrogen gas for the synthesis process c
carbon nanotube and electromagnetic wave absorption material to include carbon nanotube that fabricated using the same etc.
B. TiO2 nano ptcles - The ability to remove toxic substances using cases of TiO2’s function of removing toxic substances
i. Paper:
1. Formation of Antibacterial Film dried at Room Temperature using nano-sized TiO2 Particle
2. Degradation of Atrazine and Reduction of
I. Introduction
Global warming is a major environmental issue that has been around for decades. It is the process of the Earth's average temperature rising due to the emission of greenhouse gases such as carbon dioxide and methane. These gases trap heat from the sun and are released in large quantities from human activities such as burning fossil fuels, deforestation, industrial waste and poll
problems are most serious. There are two atmosphere problems.
One is global warming. Global warming is the phenomenon that the average temperature of the earth's surface rises. The activities of mankind have seriously worsened global warming since the late 20th century. It is said that greenhouse gases such as carbon dioxide, methane, and nitrous oxide are the main cause of global warming.
carbon dioxide emissions. It is also true that 88% of all trips in the U.S. are made by car. It makes sense, therefore, that if more Americans leave their cars at home, there will be much less pollution and better air quality. This would help all of us―especially those with respiratory illnesses―to breather more easily. Also, with fewer vehicles on the road, the incidence of gridlock would de