|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Efficient CO_2 capture on low-cost silica gel modified by polyethyleneimine显示文摘In this work,a series of polyethyleneimine(PEI) functionalized commercial silica gel were prepared by wet impregnation method and used as CO 2 sorbent.The as-prepared sorbents were characterized by N 2 adsorption,FT-IR and SEM techniques.CO 2 capture was tested in a fixed bed reactor using a simulated flue gas containing 15.1% CO 2 in a temperature range of 25-100 C.The effects of sorption temperature and amine content on CO 2 uptake of the adsorbents were investigated.The silica gel with a 30 wt% PEI loading manifested the largest CO 2 uptake of 93.4 mg CO 2 /g adsorbent(equal to 311.3 mg CO 2 /g PEI) among the tested sorbents under the conditions of 15.1%(v/v) CO 2 in N 2 at 75 C and atmospheric pressure.Moreover,it was rather low-cost.In addition,the PEI-impregnated silica gel exhibited stable adsorption-desorption behavior during 5 consecutive test cycles.These results suggest that the PEI-impregnated silica gel is a promising and cost-effective sorbent for CO 2 capture from flue gas and other stationary sources with low CO 2 concentration. | Ke Wang Hongyan Shang Lin Li Xinlong Yan Zifeng Yan Chenguang Liu Qingfang Zha | 2012 | Journal of Natural Gas Chemistry2012，21，3： | 4 |
| 2 | Modified Characteristics of Mesophase Pitch Prepared from Coal Tar Pitch by Adding Waste Polystyrene显示文摘 | CHENG Xianglin ZHA Qingfang LI Xueiun | 2008 | Fuel Processing Technology2008，89，： | 1 |
| 3 | Maximizing the number of oxygen-containing functional groups on activated carbon by using ammonium persulfate and improving the temperature-programmed desorption characterization of carbon surface chemistry显示文摘 | Na Li Xiaoliang Ma Qingfang Zha Kyungsoo Kim Yongsheng Chen Chunshan Song | 2011 | Carbon2011，，15： | 1 |
| 4 | Skin-core structure in mesophase pitch-based carbon fibers: Causes and prevention显示文摘 | Lü YongGen Wu Zha QingFang | | 0，，12： | 1 |
| 5 | Preparation of porous carbons from petroleum coke by different activation methods显示文摘 | Mingbo Wu Qingfang Zha Jieshan Qiu | 2005 | Fuel2005，84，1415： | 1 |
| 6 | Modified characteristics of mesophase pitch prepared from coal tar pitch by adding waste polystyrene显示文摘 | Xianglin Cheng Qingfang Zha Xuejun Li Xiaojun Yang | 2008 | Fuel Processing Technology2008，，12： | 1 |
| 7 | Preparation of porous carbons from petroleum coke by different activation methods显示文摘 | WU Mingbo ZHA Qingfang QIU Jieshan | 2005 | Fuel2005，84，1415： | 1 |
| 8 | Preparation of a pitch-based activated carbon with a high specific surface area显示文摘 | QIAO WENMING LING LICHENG ZHA QINGFANG | 1997 | Journal of Materials Science1997，32，16： | 1 |
| 9 | Preparation of high strength and yield activated car-bons from waste biomasses by hot pressure treat ment显示文摘 | Wu Mingbo Miura Kouichi Zha Qingfang | 2006 | Prepr Pap-Am Chem Soc Div Fuel Chem2006，51，1： | 1 |
| 10 | Kineticsof cellulose pyrolysis after a pressurized heat treat-ment显示文摘 | Wu Mingbo Vcirhegyi G Zha Qingfang | 2009 | Thermochimica Acta2009，496，： | 1 |
| 11 | The FCC slurry preparation of mesophase pitch carbon foam 显示文摘 | Zha Qingfang Guo Yansheng Ye Zhigang | 2000 | Journal of Chinese Chemical2000，48，： | 1 |
| 12 | Microenvironment characterization for a novel biocompatible hybrid carbon-silicon material显示文摘The compatible carbon-silicon complex materials originated from precursor diglycerylsilane(DGS) and sugar-modified silane N-(3-triethoxysilylpropyl)gluconamide(GLS) have gained substantial popularity by demonstrating admirable properties to stabilize entrapped biomolecules.The microenvironment inside these materials,especially the distribution of sugar moieties inside the matrix,which is likely the most critical factor determining compatibility of these materials,still remains unclear.To deeply investigate the biocompatibility mechanism of these materials,we have adopted two different preparation routes for these materials by introducing GLS into the starting DGS sol stage,but things are different after the DGS gel is formed.A fluorescence probe rhodamine 6G is introduced herein in the DGS sol to monitor the distribution of GLS moieties,as well as the evolution of the microenvironment inside resulting materials.All in all,the findings demonstrated that the timing of GLS addition plays a critical role in controlling the evolution of the inner structure of materials,suggesting that this factor provides a promising route to tune the properties of the resulting materials. | SUI XiHua ZHA QingFang WU MingBo GUO YanSheng | 2009 | Science China Chemistry2009，52，8： | 0 |
| 13 | Preparation and Application of Silica-based Perfusion Packing of Size Exclusion Chromatography for Quantitation of Polyacrylamide in Enhanced Oil Recovery Systems显示文摘The synthesis and characterization of a novel macroporous silica derived size exclusion chromatography (SEC) packing for quantitative analysis of high molecular weight (MW) polyacrylamide (PAM) are presented. Using this packing, a fast, sensitive and reproducible approach for quantitation of super high-MW PAM in demanding enhanced oil recovery (EOR) waters was developed and the effect of synthesis parameters on the properties of resultant materials was investigated. These parameters include salt addition, reaction temperature and duration, activation condition of functional groups on the silica surface, as well as the reaction cycles required for optimal silica modification. Moreover, SEC analysis conditions, such as mobile phase composition, flow rate, detection and sample preparation, were also explored and an optimal analysis protocol was developed. Under this optimized SEC analysis conditions, the synthesized macroporous materials proved satisfactory for quantification of PAM with average MW up to 22 million Daltons. An SEC analysis required less than few minutes with a detection limit of 1 ng, a linear response range of 0.1 to 75 mg/L with squared R value of 0.99 and reproducibility better than 9.2% RSD (relative standard deviation). The analysis of PAM in highly saline oilfield production water containing interfering high MW polymeric surfactants indicated the recovery ranges from 92.5% to 110.1% for 1.0 mg/L PAM and 94.2% to 103.8% for 50 mg/L PAM solution. This study presented for the first time that the reliable quantization of high MW PAM in highly demanding EOR waters can be achieved by SEC. | Sui Xihua Zha Qingfang Wu Mingbo Guo Yansheng | 2007 | Petroleum Science2007，4，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员