The coal to ethylene glycol (CTEG) process has drawn much attention due the serious conflict between supply and demand of in China. However, it is inevitably accompanied by problem high CO2 emissions. Carbon capture one most promising potential effective ways address this issue. CTEG process, integrated with carbon technology, will lead energy economic penalties. Thus, a comprehensive evaluatio...

The combined use of low heat Portland cement (LHC), MgO-based expansive agent (MEA) and shrinkage reducing admixture (SRA) is beneficial to reduce the cracking risk concrete. In this study, effects MEA SRA on rheological behaviour LHC paste were investigated using dynamic static shearing tests. response surface methodology was used estimate MEA, SRA, superplasticizer parameters, while zeta pote...

OBJECTIVE To study in vitro the effect of two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine, blended with an organofunctional silane coupling agent, (3-acryloxypropyl)trimethoxysilane, on the shear bond strength between resin-composite cement and silicatized zirconia after dry storage and thermocycling. MATERIALS AND METHODS Six tested groups of...

The corrosion behavior of two stainless steels (316L and 304L) was evaluated using a CO2-loaded aqueous solution 30 wt.% monoethanolamine (MEA) with view to simulating related mechanisms in amine treatment procedures. Corrosion experimentally as function CO2 loading temperature, electrochemical techniques (polarization curves, cyclic polarization, EIS measurement). results reveal that the MEA c...

In order to select the best mixed amines in CO2 capture process, absorption of was explored at required concentrations by using monoethanolamine (MEA) as a basic solvent, with diisopropanolamine (DIPA), triethanolamine (TEA), 2-amino-2-methyl-1-propanol (AMP), and piperazine (PZ). Here, bubble column used scrubber, continuous operation adopted. The Taguchi method for experimental design. condit...

BACKGROUND A sensitive gas chromatography-mass spectrometry method was developed and validated for the simultaneous measurement of MDEA, MDMA, and its metabolites, 3,4-methylenedioxy-N-ethylamphetamine (MDEA), 3,4-methylenedioxymethamphetamine (MDMA or Ecstasy), and its metabolites, 4-hydroxy-3-methoxyamphetamine (HMA), 3,4-methylenedioxyamphetamine (MDA), and 4-hydroxy-3-methoxyamphetamine (HM...

This work aimed at elucidating the influence of zwitterionic hard segments on the structures and properties of shape memory polyurethanes (SMPUs). A series of zwitterionic SMPUs was successfully prepared with N-methyldiethanolamine (MDEA), 1,3-propanesultone (1,3-PS), 1,6-hexamethylene diisocyanate (HDI) and polyethylene glycol (PEG6000). The influence of MDEA-PS-based zwitterionic hard segment...

The 3,4-methylenedioxy-methamphetamine (MDMA)-related designer drug 3,4-methylenedioxyethylamphetamine (MDEA, Eve) is a chiral compound that is mainly metabolized by N-deethylation and demethylenation during phase I metabolism. The involvement of several cytochrome P450 (P450) isozymes in these metabolic steps has been demonstrated by inhibition assays using human liver microsomes. However, a c...