1. Uptake Hydrogenase
1) Definition of Uptake Hydrogenase and Mechanism of HydrogenProduction
Uptake hydrogenases are Ni-Fe enzymes that catalyze the conversion of hydrogen gas to hydrogen ions and electrons. They are found in the heterocysts and not in the vegetative cells of nitrogen-fixing strains of cyanobacteria. They remove the hydrogen gas produced by nitrogenase when they carry o
hydrogenproduction costs. The main technical issues for these high-temperature processes relate to materials development for corrosion resistance at high temperatures, high-temperature
membrane and separation processes, heat exchangers, and heat storage media. Design aspects and safety are also important for high-temperature processes.
-Thermo-chemical water splitting
For example, Thermo-
Introduction
Fossil fuels
- Main Energy Source
- Causing global warming
- Being exhausted
→ need
alternative energy
Hydrogen is one of well-known clean energy source.
Several technologies are already available in the marketplace for the industrial production of hydrogen.
Hydrogen can be produced from a variety of feedstocks.
A variety of process technologi
production을 확인한다.
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S. aureus, L. lautis 를 Plate에 배양한다. 다음 날 Hydrogen peroxide를 넣어서 발생하는 작용을 비교한다.
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NaCl이 5%, 10%, 15% 들어 있는 plate와 Glucose가 5%, 10%, 25% 들어있는 plate에 각각E.coli와 S. aureus를 넣고 하루 동안 배양한다. 각각의 삼투압 차이에 따른 Organisms의
products가 되었다. 그리고 ABE 발효는 hydrogen, isopropanol, acetic, lactic, propionic and butyric acids, carbon dioxide, 그리고 lipids의 많은 부산물들을 만들어냈다. 따라서 주요한 발효산물들은 분리될 필요가 있었는데 이러한 부산물들을 제거함에 따라 butanol을 얻는데 필요한 비용의 증가를 초래하였다. 뿐만 아니라 1960