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171
COMPARATIVE PERFORMANCE STUDY OF CO2 CAPTURE WITH MONOETHYL AND DIETHYL AMINES USING ASPEN PLUS ®
"... One of the major causes of climate change is the CO2 emission from fossil fuel-based power plants. To mitigate this effects CO2 capture and storage is proposed for future plants. CO2 capture using amines is the most matured technology for this purpose. Different amines or mixtures of those are propo ..."
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One of the major causes of climate change is the CO2 emission from fossil fuel-based power plants. To mitigate this effects CO2 capture and storage is proposed for future plants. CO2 capture using amines is the most matured technology for this purpose. Different amines or mixtures of those
Radiation effects on uptake of Tcm-hexamethylpropylene amine oxime (HMPAO) in head and neck tumours
"... Summary Twenty patients with malignant head and neck tumours were imaged with 9Tcm-labelled hexamethylpropylene amine oxime (HMPAO), a radiopharmaceutical generally used for blood flow studies. Before radiotherapy (RT), 93 % of the tumours could be detected with single photon emission computed tomog ..."
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Summary Twenty patients with malignant head and neck tumours were imaged with 9Tcm-labelled hexamethylpropylene amine oxime (HMPAO), a radiopharmaceutical generally used for blood flow studies. Before radiotherapy (RT), 93 % of the tumours could be detected with single photon emission computed
Polar and hydrogen-bonding effects of alcohols on the emission spectrum of styrene-triethylamine system Polar and Hydrogen-Bonding Effects of Alcohols on the Emission Spectrum of Styrene-Triethylamine System
"... The emission spectra of styrene (ST)-triethylamine (TEA) systems were measured under steady-state illumination conditions in some tetrahydrofuran (THF)-protic solvent mixtures. The fluorescence spectrum of the ST-TEA system in THF consists of two bands (band A at 304 nm (fluorescence of ST) and ban ..."
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) and band B at 460 nm (emission from an exciplex)). The intensity of band A increased and that of band B decreased with increasing amounts of protic solvents in THF-protic solvent mixtures. The increase in the intensity of band A was explained by the decrease in the concentration of free amine owing
Screening Trace Elements and Electrolytes in Serum by Inductively-Coupled Plasma Emission Spectrometry
"... This rapid, accurate procedure for trace elements and elec-trolytes inserum requires little sample preparation: to 1 mL of serum a single reagent is added that contains trichloroacetic and hydrochloric acids for protein precipitation, hydroxyl-amine sulfate for iron reduction, and yttrium as the int ..."
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This rapid, accurate procedure for trace elements and elec-trolytes inserum requires little sample preparation: to 1 mL of serum a single reagent is added that contains trichloroacetic and hydrochloric acids for protein precipitation, hydroxyl-amine sulfate for iron reduction, and yttrium
Reduction of CO2 Emissions by a Membrane Contacting Process
- On the Kinetics between CO2 and Alkanolamines both in Aqueous and Non-Aqueous Solutions
, 1988
"... A membrane-based gas–liquid contacting process was evaluated in this work for CO2 removal from flue gases. The absorption of CO2 from a CO2–N2 mixture was investigated using a commercial hollow fiber membrane contactor and water or diethanolamine as absorbing solvents. Significant CO2 removal (up to ..."
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Cited by 6 (0 self)
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to 75%) was achieved even with the use of pure water as absorbent. By using aqueous amine solutions and chemical absorption, mass transfer improved, and CO2 removal was nearly complete (,99%). A mathematical model was developed to simulate the process and it was validated with experimental data. Results
Research Article Reduction of Energy Consumption and Greenhouse Gas Emissions in a Plant for the
"... The chemical industry comprises of the companies that produce industrial che-micals. It is central to the modern world economy, converting raw materials into more than 70 000 different products. However, environmental regulations and the risk of climate change are putting pressure on the chemical in ..."
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industry to mini-mize greenhouse gas emissions. In this work, we use the concept of process inten-sification (using thermally coupled distillation) to reduce energy consumption and CO2 emissions in a plant for the separation of amines. The results show that the use of thermally coupled distillation
Effect of Liquid Flow Rate and Amine Concentration on CO 2 Removal from Natural Gas at High Pressure Operation in Packed Absorption Column
"... Abstract. Greenhouse gas (GHG) emissions such as carbon dioxide (CO 2 ) and methane (CH 4 ) from oil and natural gas operation at offshore platforms have significant contribution to global warming. The reduction of these GHG emissions is possible through CO 2 capture technology. This study reports ..."
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Abstract. Greenhouse gas (GHG) emissions such as carbon dioxide (CO 2 ) and methane (CH 4 ) from oil and natural gas operation at offshore platforms have significant contribution to global warming. The reduction of these GHG emissions is possible through CO 2 capture technology. This study reports
MR imaging, single-photon emission CT, and neurocognitive performance after mild traumatic brain injury
- AJNR American Journal of Neuroradiology
, 2001
"... 5 14–15) is a common neurologic disorder and a common cause of neurocognitive deficits in the young population. Most patients recover fully from mTBI, but 15 % to 29 % of patients have persistent neurocognitive problems. Although a partially organic origin is considered likely, little brain imaging ..."
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Cited by 11 (0 self)
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-photon emission CT (SPECT) for the eval-uation of mTBI. METHODS: Twenty-one consecutive patients were included in the study. Patients underwent MR examination, technetium-99m hexamethylpropylene amine oxime SPECT, and neurocog-nitive assessment within 5 days after injury. Neurocognitive follow-up was conducted 2
1 Greenhouse Gas Emission Reductions: Development of Energy Efficient Catalysts for Post Combustion Capture of CO2.
"... There is a large energy penalty in the proven technology of chemical absorption/stripping of CO2 using amine solvents. The aim in this study is to develop fast catalytic absorption/ desorption of CO2 at low temperatures using water as solvent. The naturally occurring zinc metallo-enzyme carbonic anh ..."
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There is a large energy penalty in the proven technology of chemical absorption/stripping of CO2 using amine solvents. The aim in this study is to develop fast catalytic absorption/ desorption of CO2 at low temperatures using water as solvent. The naturally occurring zinc metallo-enzyme carbonic
Life cycle assessment comparison of technical solutions for CO2 emissions reduction in power generation
, 2001
"... An exergetic life cycle assessment (ELCA) and a classical environmental life cycle assessment (LCA) have been performed for three carbon dioxide low emission power cycles. The configuration of the power cycles are: a semi-closed gas turbine combined cycle with CO2 reduction from the exhausts by mean ..."
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An exergetic life cycle assessment (ELCA) and a classical environmental life cycle assessment (LCA) have been performed for three carbon dioxide low emission power cycles. The configuration of the power cycles are: a semi-closed gas turbine combined cycle with CO2 reduction from the exhausts
Results 21 - 30
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171
