共查询到20条相似文献,搜索用时 93 毫秒
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生态文明建设为东海近年来的高速发展提供了保障,也为新一轮跨越式发展创造了良好的条件并奠定了扎实的基础。增强了城市的综合竞争力,提升了全民的生活品质,推动了社会事业的协调发展。 相似文献
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简述了微生物肥料的种类和作用,介绍了我国微生物肥料应用现状,分析了存在的问题并提出了相关的处理建议。 相似文献
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Shu-Yii Wu Yong-Fang Liu Ya-Chieh Li Chun-Min Liu 《International Journal of Green Energy》2015,12(10):1025-1030
The CO2 absorption capacities of potassium glycinate, potassium sarcosinate (choline, proline), mono-ethanolamine (MEA), and tri-ethanolamine were evaluated to find the optimal absorbent for separating CO2 from gaseous products by a CO2 purification process. The absorption loading, desorption efficiency, cost, and environmental tolerance were assessed to select the optimal absorbent. MEA was found to be the optimum absorbent for separating the CO2 and H2 mixture in gaseous product. The maximum absorption loading rate was 0.77 mol CO2 per mol MEA at temperature of 20°C and absorbent concentration of 2.5 mol/L, whereas desorption efficiency was 90% by heating for 3 h at 130°C. MEA was found to be an optimal absorbent for the purification process of CO2 during gaseous production. 相似文献
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TETA对CO_2的吸收及其动力学参数的推导 总被引:2,自引:0,他引:2
为了提高CO2的吸收量,选用含四个氮原子的三乙烯四胺(简写为TETA)为吸收剂,在常压下,采用搅拌式反应器对TETA吸收CO2进行了研究。得到TETA吸收CO2的最佳温度为308K、最佳浓度为1.0mol/L,并与常用的醇胺吸收剂一乙醇胺(简写为MEA)、二乙醇胺(简写为DEA)、三乙醇胺(简写为TEA)的吸收效果进行比较,实验结果显示:TETA是一种性能优良的CO2吸收剂。同时分析了各吸收剂对二氧化碳的吸收机理;应用化学动力学理论计算了不同温度下TETA吸收CO2反应的级数,速率常数及反应的平均活化能。计算结果表明,在最佳温度308K时,反应的速率常数最大,反应速率最快,反应级数n=1.6,速率常数k′=0.172,平均活化能Ea=132kJ/mol。 相似文献
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In this study, the absorption of carbon dioxide using an absorbent composed of 2-amino-2-methyl-L-propanol (AMP) + monoethanolamine (MEA) + piperazine (PZ) in asymmetric and symmetric polytetrafluoroethylene (PTFE) membrane contactors was investigated. Experiments were conducted using various gas flow rates, liquid flow rates, and absorbent blends. CO(2) recovery increased with increasing liquid flow rates. The mean pore size of PTFE membrane reduced via heating treatment. An asymmetric membrane had a better CO(2) recovery than a symmetric membrane. For the asymmetric membrane, placing the smaller pore-size side of the membrane in contact with the liquid phase, reduced the level of wetting of the membrane. The membrane mass transfer coefficient and durability of the PTFE membrane were enhanced by asymmetrically heating. 相似文献
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一种适合我国国情的烟气脱硫技术--荷电干式吸收剂喷射脱硫系统(CDSI) 总被引:1,自引:0,他引:1
介绍目前我国的几种主要脱硫技术,并且在脱硫率、工程投资、占地等方面进行一些简单的比较,并着重介绍荷电干式吸收剂喷射脱硫系统的基本工作原理及其在应用上的主要优点. 相似文献
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活性炭在膜生物反应器中的应用研究进展 总被引:1,自引:0,他引:1
活性炭是一种非常优良的吸附剂,具有物理吸附和化学吸附的双重特性。本文介绍了近年来向膜生物反应器中投加活性炭的应用研究进展,表明投加活性炭可以提高膜生物反应器的处理效果,同时对改善膜污染有很好的效果。 相似文献
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建立流动分析法测定吸收液中氨的方法,用稀硫酸溶液吸收空气中的氨气,吸收液作为样品进入流动分析系统,采用在线蒸馏,实行自动分析,与国家标准方法比对,无明显差异,可用于空气中氨的定量检测。 相似文献
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《International Journal of Greenhouse Gas Control》2007,1(1):5-10
A study to determine the structure and activity relationships of various amine based CO2 absorbents was performed in which, the absorption of pure CO2 at atmospheric pressure was measured to assess the total absorption rate and capacities. Results showed that an increase in chain length between the amine and different functional groups in the absorbent structure, result in a decrease of absorption rate whereas, the absorption capacity was increased in most absorbents. 相似文献