The amount of ethylene in refinery off-gas is high with a mass fraction of 20%,but the refinery off-gas is usually used as fuel gas in most refineries.The separation and recovery of ethylene is of remarkable significa...The amount of ethylene in refinery off-gas is high with a mass fraction of 20%,but the refinery off-gas is usually used as fuel gas in most refineries.The separation and recovery of ethylene is of remarkable significance for saving energy and reducing carbon dioxide emission.The aim of this paper is to use a novel absorbent mesitylene for the ethylene absorption process and assess its application feasibility through the ethylene + mesitylene vapor-liquid equilibrium data measurement and its binary interaction parameter correlation,as well as the simulation for ethylene separation process.展开更多
We studied the temperature dependence of the light yield of linear alkyl benzene （LAB）-based and mesitylene-based liquid scintillators. The light yield increases by 23% for both liquid scintillators when the temper-...We studied the temperature dependence of the light yield of linear alkyl benzene （LAB）-based and mesitylene-based liquid scintillators. The light yield increases by 23% for both liquid scintillators when the temper- ature is lowered from 26 ℃ to -40 ℃, correcting for the temperature response of the photomultiplier tube. The measurements help to understand the energy response of liquid scintillator detectors. Especially, the next generation reactor neutrino experiments for neutrino mass hierarchy, such as the Jiangmen Underground Neutrino Observatory （JUNO）, require very high energy resolution. As no apparent degradation on the liquid scintillator transparency was observed, lowering the operation temperature of the detector to ～4 ℃ will increase the photoelectron yield of the detector by 13%, combining the light yield increase of the liquid scintillator and the quantum efficiency increase of the photomultiplier tubes.展开更多
The design and synthesis of novel polypyrazolyl aromatic bridging ligands 1,3,5-tris（3,5-dimethyl-1-pyrazol-4-yl）benzene and 2,4,6-tris（4-（3,5-dimethyl-^1H-pyrazol-4-yl）phenyl）-1,3,5-triazine from simple startin...The design and synthesis of novel polypyrazolyl aromatic bridging ligands 1,3,5-tris（3,5-dimethyl-1-pyrazol-4-yl）benzene and 2,4,6-tris（4-（3,5-dimethyl-^1H-pyrazol-4-yl）phenyl）-1,3,5-triazine from simple starting materials mesitylene and p-tolunitrile were reported.展开更多
基金Supported by the National Natural Science Foundation of China （50890184） the National Basic Research Program of China （2011CB201306）
文摘The amount of ethylene in refinery off-gas is high with a mass fraction of 20%,but the refinery off-gas is usually used as fuel gas in most refineries.The separation and recovery of ethylene is of remarkable significance for saving energy and reducing carbon dioxide emission.The aim of this paper is to use a novel absorbent mesitylene for the ethylene absorption process and assess its application feasibility through the ethylene + mesitylene vapor-liquid equilibrium data measurement and its binary interaction parameter correlation,as well as the simulation for ethylene separation process.
基金Supported by National Science Foundation of China(11205183,11005117,11225525,11390384)
文摘We studied the temperature dependence of the light yield of linear alkyl benzene （LAB）-based and mesitylene-based liquid scintillators. The light yield increases by 23% for both liquid scintillators when the temper- ature is lowered from 26 ℃ to -40 ℃, correcting for the temperature response of the photomultiplier tube. The measurements help to understand the energy response of liquid scintillator detectors. Especially, the next generation reactor neutrino experiments for neutrino mass hierarchy, such as the Jiangmen Underground Neutrino Observatory （JUNO）, require very high energy resolution. As no apparent degradation on the liquid scintillator transparency was observed, lowering the operation temperature of the detector to ～4 ℃ will increase the photoelectron yield of the detector by 13%, combining the light yield increase of the liquid scintillator and the quantum efficiency increase of the photomultiplier tubes.
基金Project supported by the National Natural Science Foundation of China （No. 50373051） and the State Key Laboratory of Applied 0rganic Chemistry Foundation of Lanzhou University. Dedicated to Professor Xikui Jiang on the occasion of his 80th birthday.
文摘The design and synthesis of novel polypyrazolyl aromatic bridging ligands 1,3,5-tris（3,5-dimethyl-1-pyrazol-4-yl）benzene and 2,4,6-tris（4-（3,5-dimethyl-^1H-pyrazol-4-yl）phenyl）-1,3,5-triazine from simple starting materials mesitylene and p-tolunitrile were reported.
