Papers – Page 23 – TechConnect Briefs

TCAD Analysis of Silicon-Germanium (SiGe) Based Back-Contact Back-Junction (BC-BJ) Solar Cell-an Alternative for Silicon Based Cells

Pandey R., Chaujar R., Delhi Technological University, IN

In this work, an ultra-thin, Back-Contact Back-Junction (BC-BJ) Crystalline Silicon-Germanium (SiGe) solar cell device structure called BC-BJ c-SiGe solar cell has been proposed. The results, are compared with conventional BC-BJ silicon cell. SiGe is used [...]

Global Gas Flaring -The Energy Waste with Serious Environmental Impacts: Case Study of Iran

Soltanieh M., Zohrabian A., Gholipour M.J., Sharif University of Technology, IR

Gas flaring in oil production and oil and gas refining is a major environmental issue with great energy and economic loss. In this paper the global gas flaring and its adverse environmental impacts have been [...]

Gas-Assisted Gravity Drainage – A New Process for CO2 Sequestration and Enhanced Oil Recovery

Rao D.N., Louisiana State University, US

The current commercial practice of gas-based enhanced oil recovery processes involves either continuous gas injection (CGI) or Water-Alternating-Gas (WAG) injection. Over 60 commercial projects in West Texas and other parts of the world have amply [...]

H2 purification with PVDF/GTA blended membranes

Rabiee H., Soltanieh M., Mousavi S.A., Ghadimi A., Sharif University of Technology, IR

In this study, poly(vinylidene fluoride) (PVDF) and Glycerol Triacetate (GTA) have been selected as the main blending materials in order to fabricate membranes with a high separation ability for CO2/H2. GTA as a plasticizer possesses [...]

Hollow Granules of Nitrogen/Boron co-doped Carbon for CO2 Capture

Kim J., Han J., Ha D., Han J., Kang S., Seoul National University, KR

Carbide-derived carbon (CDC) has been examined due to its useful conformal character. However, its variety of chemical composition is limited because functionalized atoms in its carbonaceous structure, especially with nitrogen, are unstable during high-temperature processing. [...]

Pelletized silica and amine composites for CO2 capture via adsorption

Knowles G.P., Vogt C., Chaffee A.L., Cooperative Research Center for Greenhouse Gas Technologies, AU

Solid amine sorbent powders are of broad interest to facilitate CO2 capture towards reducing atmospheric greenhouse gas. It is recognized, however, that pelletized rather powdered adsorbents are required for industrial adsorption separation processes. “Molecular basket” [...]

Theoretical Synthesis of Mixed Materials for CO2 Capture Applications

Duan Y., DOE-National Energy Technology Laboratory, US

Since the current technologies for capturing CO2 are still too energy intensive, to develop new materials that can capture CO2 reversibly with acceptable energy costs are needed. By combining thermodynamic database mining with first principles [...]

The Scale-up of Fluidized-bed Gasifier

Liu Z., Suda T., Narukawa M., Takafuji M., IHI Corporation, JP

Gasification is a good method to upgrade solid fuel. The fluidized-bed gasifier is widely used for the gasification of low-rank coal and biomass. IHI develops a fluidized-bed gasifier TIGAR(Twin IHI GAsifieR). It is important to [...]

Technical and Economical Feasibility of Pyrolysis of Kraft Lignin

Farag S., Chaouki J., École Polytechnique de Montréal, CA

This research project discusses the technical and economical feasibility of converting kraft lignin to value-added chemicals. Two pyrolysis techniques were implemented: conventional pyrolysis using classical heating and microwave pyrolysis using electromagnetic irradiation. The product distribution [...]

In situ transesterification of wet microalgae under acid catalysts

Lee J.W., Kim B., Im H., Korea Advanced Institute of Science and Technology, KR

Microalgae can be categorized to be the third generation of promising biofuel resources and can utilize carbon dioxide from flue gas as a nutrient source and accumulate lipids inside cells. They grow faster than any [...]