The Open Chemical Engineering Journal最新文献_第9页

Retraction Note: A New Acetophenone Trimer From Roots of Euphorbia ebracteolata 撤回注:从大戟根中提取的一个新的苯乙酮三聚体

The Open Chemical Engineering Journal Pub Date : 2015-07-31 DOI: 10.2174/1874123101509010162

Di Geng, Xuan Ma, L. Weng, Li-Tao Yi, Y. Han, Xin Yang

引用次数: 0

Dynamic Model Parameter Identification and Simulation of SCR Based on Genetic Algorithm 基于遗传算法的SCR动态模型参数辨识与仿真

The Open Chemical Engineering Journal Pub Date : 2015-07-31 DOI: 10.2174/1874123101509010062

Ren Hongjuan, Lou Diming, Zhu Jian, Luo Yiping

引用次数: 0

Experimental Study for Biogas Upgrading by Water Scrubbing under LowPressure 低压水洗法沼气净化试验研究

The Open Chemical Engineering Journal Pub Date : 2015-06-26 DOI: 10.2174/1874123101509010034

Huang Li, Chu Qing, Tao Hongge, Wang Yan-jin, Xinping Liu

{"title":"Experimental Study for Biogas Upgrading by Water Scrubbing under LowPressure","authors":"Huang Li, Chu Qing, Tao Hongge, Wang Yan-jin, Xinping Liu","doi":"10.2174/1874123101509010034","DOIUrl":"https://doi.org/10.2174/1874123101509010034","url":null,"abstract":"Biogas fuels is effective to alleviate the problem of energy shortage and ecological environment for sustainable developing in rural China. But CO 2 and other impurity in biogas will impede its use for generating high quality energy. In this paper, water scrubbing technology has been used for biogas upgrading under low scrubbing pressure, and the influence of CO 2 removal rate and CO 2 solubility caused by different experimental parameters including the feed gas flow rate, water flow rate and scrubbing pressure were examined, and the experiments dates were analyzed by SPSS17.0, and then the corresponding mathematical models were established. The result showed that, under the three scrubbing pressure level(with normal pressure, 0. 15 Mpa and 0. 3 Mpa), the improve rate of CH 4 volume fraction increased about 15%, and CO 2 volume fraction declined about 20% when scrubbing pressure raised in each level, and under 0.3 Mpa of pressure, with 0.28 of flow rate ratio of gas and liquid, CO 2 removal rate gotten as high as 73.14%.So the method of water scrubbing under low pressure could be used for biogas preliminary upgrading processing when there is rich of water.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"55 1","pages":"34-38"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84566789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Optimization of Process on Extracting Flavonoids from Dry Onion Skins by Alkaline Method 碱性法提取干洋葱皮黄酮工艺的优化

The Open Chemical Engineering Journal Pub Date : 2015-06-26 DOI: 10.2174/1874123101509010039

Guoqing Shi, Xiang Qisen, Yichao Fan, Zhao Wenen, Li Yanqi

引用次数: 1

Application of Design of Experiment and Design Space (DOE-DS) Methodology for the HPLC Separation of Panax Notoginseng Saponins 实验设计与设计空间(DOE-DS)法在三七皂苷HPLC分离中的应用

The Open Chemical Engineering Journal Pub Date : 2015-06-26 DOI: 10.2174/1874123101509010047

Shengyun Dai, Bing Xu, Gan Luo, Jianyu Li, Zhong Xue, Xinyuan Shi, Yanjiang Qiao

{"title":"Application of Design of Experiment and Design Space (DOE-DS) Methodology for the HPLC Separation of Panax Notoginseng Saponins","authors":"Shengyun Dai, Bing Xu, Gan Luo, Jianyu Li, Zhong Xue, Xinyuan Shi, Yanjiang Qiao","doi":"10.2174/1874123101509010047","DOIUrl":"https://doi.org/10.2174/1874123101509010047","url":null,"abstract":"Abatract: Panax Notoginseng Saponins (PNS), extracted from the roots of the common TCM Panax notoginseng (Burk.) F.H.Chen, consist of notoginsenoside R1, ginsenoside Rg1, Re, Rb1, Rd and many other chemicals which haven’t been identified. Due to its popular pharmacological effects, it is of importance to control the quality. This study combines design of experiments and design space methodology to optimize the HPLC separation of PNS. Three common chromatographic parameters (i.e. the temperature, the initial proportion of acetonitrile and the gradient slope) were selected to construct a Box-Behnken design which consisted of 17 experiments. A quadratic model that was built from the experimental result was used to construct the design space. The optimal separation was predicted at temperature 20°C, with a gradient starting at 15% of acetonitrile and a gradient slope of 0.55%/min. Accuracy profile approach was employed to validate the established HPLC method. The results clearly showed that quality by design methodology could be effectively applied to optimize the HPLC chromatographic conditions for the analysis of PNS.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"31 1","pages":"47-52"},"PeriodicalIF":0.0,"publicationDate":"2015-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81195110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The Synthesis of New Solid-phase Microextraction Adsorption Material and Its Adsorption Performance 新型固相微萃取吸附材料的合成及其吸附性能研究

The Open Chemical Engineering Journal Pub Date : 2015-06-26 DOI: 10.2174/1874123101509010053

Fu Shuang, Xiao Chunhui, L. Hongmei, Xu Feng

引用次数: 0

Study on the Synthesis and Application in the Polycarbonat of Silicone- Cyclophosphazene Flame Retardant 有机硅-环磷酰胺阻燃剂的合成及在聚碳酸酯中的应用研究

The Open Chemical Engineering Journal Pub Date : 2015-06-08 DOI: 10.2174/1874123101509010029

Ling Hu, P. He, S. Fang

引用次数: 1

Transition Metal-free Epoxidation of Alkenes Based on the Existence of (2- hydroxypropyl)-β-CD 基于(2-羟丙基)-β- cd的烯烃过渡无金属环氧化反应

The Open Chemical Engineering Journal Pub Date : 2015-04-17 DOI: 10.2174/1874123101509010020

Shi Dongpo, Yin Xianqing, Zheng Yan-cheng, Chen Wu, Fu Jiaxin, Ren Zhaohua

引用次数: 0

Mixing Experimental Study on Water-rock Interaction (WRI) in the Inland Shallow Salt Groundwater Area 内陆浅层盐地下水区水岩相互作用(WRI)混合试验研究

The Open Chemical Engineering Journal Pub Date : 2015-04-17 DOI: 10.2174/1874123101509010025

Liu Changsuo, Xing Liting, W. Liyan, Zhang Fengjuan, L. Bo

{"title":"Mixing Experimental Study on Water-rock Interaction (WRI) in the Inland Shallow Salt Groundwater Area","authors":"Liu Changsuo, Xing Liting, W. Liyan, Zhang Fengjuan, L. Bo","doi":"10.2174/1874123101509010025","DOIUrl":"https://doi.org/10.2174/1874123101509010025","url":null,"abstract":"The shallow salt groundwater is widely distributed in North Shandong, which makes it difficult for people and livestock to drink daily. In addtion, the genetic mechanism of shallow salt groundwater is complicated. The study was carried out in Xiyan Village of Jiyang County, it choosed the silt buried in 3-9 m depth, shallow salt groundwater and atmospheric precipitation as test materials to measure chemical composition of groundwater. Base on soluble salt test, rain-saltwater mixing test and rain-saltwater-silt mixing test, ions component of mixture were measured, the hydrogeochemical action process of WRI was analyzed and formation-evolution of inland saltwater was deepened knowledge. It is shown that (1) The occurrence threshold of WRI was 20%, which was the volume of saltwater in mixture. (2) When the rainwater, saltwater and silt were mixed together for 12 hours, calcite and dolomite precipitated, halite and gypsum were in dissolved state. When the volume of saltwater in mixture was larger than 20%, gypsum was closed to saturation, the main cation exchange was Mg-Na, the exchange of Ca-Na was in the second place; The order for anion adsorption amount of aquifer medium was SO4 2- > HCO3 - >Cl - . The study proves that groundwater circulation is slow and continual, some hydrochemical actions (i.e. ion exchange, adsorption, mineral dissolution or precipitation, and strong evaporation-concentration) are happened during the evolution process of inland shallow groundwater. All these will lead to ClSO4-MgNa type salt or slight salt water with TDS being larger than 2g·L -1 .","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"27 1","pages":"25-28"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83360642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Preparation and Application of Biochar from Brewery`s Spent Grain and Sewage Sludge 啤酒废粮与污泥生物炭的制备与应用

The Open Chemical Engineering Journal Pub Date : 2015-04-17 DOI: 10.2174/1874123101509010014

Yinxin Zhang, Zhang Jishi, M. Yi

引用次数: 6