2) Fuels
(1) Solid fuels: Coal and Biomass
Coalis
one
of
most
important
fuel
in
Korea
for
electricity
production
and
other
industrial uses. It consists of the remains of vegetation deposits of past geologic ages,
after subjection of biochemical actions, high pressure, temperature, and submersion. The
characteristics
of
Heat duty의 합을 최소화시키는 농축기 탑상부의 에탄올 조성을 결정하였다. 한편 용매로써 에틸렌글리콜을 사용한 추출증류공정에서는 용매는 원료 중에서 물을 선택적으로 추출해 내기 때문에 무수 IPA는 추출증류탑 상부에서 얻어지게 된다. 용매회수탑에서는 용매와 물 사이의 분리가 이루어진다.
PVAc (Poly vinyl acetate)
A rubbery synthetic polymer
with the formula (C4H6O2)n
A hard, colorless, and nontoxic substance.
An intermediate product in the synthesis of polyvinyl alcohol.
Emulsion Polymerization
starts with an emulsion incorporating water, monomer, and surfactant.
Advantage
- High molecular weight polymers can be made.
- Heat can be removed
* Dye is varied depending on the
type of substituent X
* 3 conditions are needed
- absorb all visible light.
- bond with nano-oxided substance.
- resist against heat and optics.
* Dye have a major impact in the
efficient of DSSCs
1.Illumination of Sunlight
- Absorbed by Dye sensitized.
2. Excited Dye molecule injects
electron to TiO2.