Please wait a minute...

当期目录

2018年 第20卷 第4期    刊出日期:2018-12-30
Scientific Research
  Content of this issue
2018, 20(4):  1-2. 
摘要 ( 444 )   PDF (201KB) ( 1160 )  
参考文献 | 相关文章 | 计量指标
 Content of this issue
Catalyst Research
脱氯温度对Pt-θ-Al2O3催化剂丙烷脱氢性能的影响
刘杰 刘昌呈 马爱增 达志坚 郑辉东
2018, 20(4):  1-7. 
摘要 ( 572 )   PDF (586KB) ( 1207 )  
参考文献 | 相关文章 | 计量指标
Environmental-Friendly Catalytic Oxidation of Cyclohexanone with 30 wt% H2O2 Solution: A Comparison Study between Hollow Titanium Silicate and Dealuminated HBEA Zeolites
夏长久 赵毅 朱斌 林民 彭欣欣 代振宇 舒兴田
2018, 20(4):  8-19. 
摘要 ( 542 )   PDF (916KB) ( 916 )  
相关文章 | 计量指标
Two clean liquid–phase cyclohexanone oxidation routes catalyzed by DHBEA and HTS zeolites, in the absence of organic solvents, have been developed for producing high value-added chemical intermediates. Under optimized conditions, the cyclohexanone conversion is up to 60%, and the selectivity of total target products (ε-caprolactone, 6-hydroxyhexanoic acid and adipic acid) is over 90% for HTS zeolite; while both cyclohexanone conversion and the 6-hydroxyhexanoic acid selectivity are over 95% for DHBEA zeolite. Both Lewis and Br?nsted acid sites of DHBEA zeolite preferentially activate the carbonyl group of cyclohexanone, but have no impact on H2O2 molecule. Meanwhile, HTS zeolite majorly favors making H2O2 more reactive, which agrees well with the molecular calculation results. Hence, two different Baeyer-Villiger oxidation mechanisms based on the activation of H2O2 and cyclohexanone are proposed. Then, 6-hydroxyhexanoic acid is formed via the ring-opening of ε-caprolactone. However, C-OH groups cannot be reactivated by DHBEA zeolite, thus with little adipic acid forming, while the selectivity of adipic acid is 28.5% for HTS zeolite. Consequently, the higher catalytic performance of DHBEA zeolite is contributed to its larger amount of active sites and greater diffusion features than those of HTS zeolite.
Selective Hydrogenation of Butyne-1,4-diol to Butane-1,4-diol over Ni/Al2O3-SiO2 Catalysts
方洁 庄昌建 孟记朋 成浪 陆江银
2018, 20(4):  20-28. 
摘要 ( 551 )   PDF (892KB) ( 1038 )  
相关文章 | 计量指标
基于Ni /γ-Al2O3催化剂的甲基异丁基甲酮催化加氢性能
刘丽霞 廖涛 靳海波 何广湘 杨索和 郭晓燕 罗国华
2018, 20(4):  29-36. 
摘要 ( 564 )   PDF (467KB) ( 1050 )  
相关文章 | 计量指标
通过浸渍法制备负载型镍基催化剂,在固定床反应器中将其用于甲基异丁基甲酮选择性加氢制备甲基异丁基甲醇。分别考察了镍源、Ni负载量、焙烧时间和焙烧温度对加氢性能的影响。实验结果表明,以硝酸镍为镍源、NiO负载量为20%、焙烧时间为5 h、焙烧温度为440 ℃时,Ni /γ-Al2O3催化剂表现出较佳的反应活性,此时催化剂比表面积最大,晶体结构最好,活性组分含量最高,颗粒较小,并可均匀分布于载体表面。经优化条件后制备得到的镍基催化剂,甲基异丁基甲酮转化率达到96.1%,甲基异丁基甲醇选择性达到99.6%。此方法对于以甲基异丁基甲酮为原料制备甲基异丁基甲醇是非常有效的。
Scientific Research
1-甲基萘在γ-Al2O3表面的积炭位点研究
户安鹏 韩伟 张乐 龙湘云 李明丰 聂红
2018, 20(4):  37-43. 
摘要 ( 549 )   PDF (430KB) ( 1069 )  
参考文献 | 相关文章 | 计量指标
以1-甲基萘为模型反应物,分别采用化学静态吸附方法和催速积炭方法对载体γ-Al2O3进行积炭预处理,研究了载体表面的积炭位点。采用CAT-CS,TG-MS,IR-OH和Py-IR等表征手段分析了积炭物种在载体表面的存在形态以及载体表面相关位点的含量变化趋势。CAT-CS和TG-MS分析结果表明,在化学静态吸附过程中所形成的积炭物种主要由缩合程度较低、可逆吸附在载体表面的积炭前驱物所组成;而在催速积炭过程中所形成的积炭物种主要由缩合程度较高、不可逆吸附在载体表面的积炭沉积物所组成。IR-OH和Py-IR分析结果表明,两种积炭物种(积炭前驱物和积炭沉积物)的形成均与载体表面的碱性羟基和强路易斯酸密切相关。研究结果有利于深入理解γ-Al2O3表面的积炭机理。
Scientific Research
Mass loss behavior and volatile composition during pyrolysis of a bituminous coal
范俊峰 田斌 安晓熙 张亚青 殷蒙蒙 田原宇
2018, 20(4):  44-50. 
摘要 ( 512 )   PDF (469KB) ( 828 )  
参考文献 | 相关文章 | 计量指标
The thermogravimetry analyzer combined with pyrolysis gas chromatography/time of flight mass spectrometer technology were used in this study to investigate the mass loss behavior and volatile release characteristics of a bituminous coal. The results showed that with increasing of the heating rate, the characteristic parameters and TG/DTG curves shifted obviously to the higher temperature region. The pyrolysis of a bituminous coal at different heating rates can be divided into two stages according to the Coats-Redfern (C-R) plots. Activated energy obtained from C-R method is 50.21-85.14 kJ/mol and 5.14-7.24 kJ/mol for the first and second pyrolysis stages, respectively at the heating rate range of 8-300 kJ/mol. Aromatic hydrocarbons were dominated in the volatile products during fast pyrolysis of the coal, followed by the olefins and the phenol compounds were the third major component. With the increasing of pyrolysis temperature, the heavy components in the volatile species increased, meanwhile the phenol cracking reactions were intensified. The carbon numbers of olefins were mainly concentrated in 3-9, and the aromatics were mainly composed of the compounds of C6-C13. This study can provide basic reference for fast pyrolysis of coal and other thermal chemical conversion processes.
Scientific Research
长庆原油及其常减压渣油中氮化物的组成分析
黎小辉 元慧英 殷娟娟 武本成
2018, 20(4):  51-59. 
摘要 ( 496 )   PDF (561KB) ( 1217 )  
相关文章 | 计量指标
Scientific Research
Novel Silica Gel Supported Polyether Ionic Liquids: Efficient Catalysts Applied in Transformation of Carbon Dioxide
郭立颖 金先超 王逸蓉 王浩志
2018, 20(4):  60-66. 
摘要 ( 512 )   PDF (1012KB) ( 758 )  
参考文献 | 相关文章 | 计量指标

Three new catalysts based on the silica gel supported polyether ionic liquids (ILs), i.e., [HO-PECH-MIM]Cl-Si, [H2N-PECH-MIM]Cl-Si, and [HOOC-PECH-MIM]Cl-Si, were prepared, and their chemical structures were characterized by infrared (IR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. Thermogravimetric analyzer (TG), X-ray diffractometer (XRD) and scanning electron microscope (SEM) were used to evaluate their thermal stability, crystalline structure and apparent morphology, respectively. Surface areas of the prepared catalysts were calculated by the Brunauer-Emmett-Teller (BET) method. The catalytic reaction for the synthesis of propylene carbonate (PC) using CO2 and propylene oxide (PO) in the presence of the prepared catalysts was studied. The influences of times of recycling and catalyst structure on catalytic performance were also investigated. The experimental results showed that the silica gel supported polyether ILs catalysts successfully prepared under mild condition could possess the advantages of high activity, excellent thermal stability, good selectivity and easy recycling, while the phase transition of the liquid polyether ILs catalysts was also achieved. When the reaction temperature was 90 °C, the CO2 pressure was 2.0 MPa and the dosage of the catalyst was 2.5%, [HOOC-PECH-MIM]Cl-Si was found to have the best catalytic performance in the catalytic process, with the conversion rate reaching 100% and the selectivity equating to 98.2%. The conversion rate and selectivity still could reach more than 90% even after the catalyst was reused for 15 times.

Environmental Protection
Evaluation of Powdered Activated Carbon Treatment Process in Petrochemical Wastewater Purification
张超 杨林 桑军强 李本高 刘涛
2018, 20(4):  67-74. 
摘要 ( 532 )   PDF (595KB) ( 1169 )  
参考文献 | 相关文章 | 计量指标
Powdered activated carbon treatment (PACT) process has been widely used in many industrial fields, however, very few PACT processes are built for petrochemical wastewater treatment in China. An industrial PACT launched in a petrochemical plant was introduced and evaluated from both practice and mechanism. Practically, the PACT process showed excellent capability in pollutants removal, shock resistance, toxicity tolerance, and the COD and ammonium in effluent of PACT assisted by PAC was 15.5 and 0.7 mg/L lower than that without PAC addition, respectively. The wet oxidation regeneration unit was efficiency in supplying regenerated PAC, however, the hard calcium sulphate scale and the high concentration solution needed to be carefully controlled. Moreover, although carbon balance showed that the adsorption of regenerated PAC was negligible, the biological tests proved that the regenerated PAC increased microbe activity up to 17% more than pure activated sludge system, which was almost compatible with fresh carbon.
超重力场中RuO2-IrO2-SnO2/Ti阳极电催化降解含酚废水
高璟 闫俊娟 刘有智
2018, 20(4):  75-81. 
摘要 ( 516 )   PDF (514KB) ( 1001 )  
相关文章 | 计量指标
Combined use of co-immobilized lysozyme and lipase and chemical inhibitors in circulating cooling water system
姜国飞 陈晓蕊 鲁新 刘芳 王永强 赵朝成 孙娟
2018, 20(4):  82-90. 
摘要 ( 511 )   PDF (735KB) ( 994 )  
参考文献 | 相关文章 | 计量指标
In order to improve the stability and corrosion inhibition performance of bioenzyme, the lipase and lsozyme were co-immobilized on MCM-41 mesoporous molecular sieves by adsorption method. Then Immobilized enzymes were combined with trimethylene phosphonic acid and polyaspartic acid to prevent corrosion in circulating cooling water. The weight-loss method and electrochemical techniques were used to evaluate the performance of composite inhibitors. The co-immobilized lysozyme and lipase achieved good inhibition effects. After they were combined with trimethylene phosphonic acid and polyaspartic acid, the inhibition properties were further promoted. The inhibition efficiency was promoted to 94.4%. During the inhibition process, the immobilized enzyme played the important role. The addition of corrosion inhibitor inhibited the anodic dissolution and cathodic hydrogen evolution process of carbon steel at the same time. The adsorption of co-immobilized lysozyme and lipase composite inhibitor on the steel surface was a joint action by physical adsorption and chemical adsorption.
一株来自石油污染海域的Halomonas 菌株的降解石油烃潜力的探究
吴亚男 刘营营 薛建良 史可 高宇 肖小龙
2018, 20(4):  91-98. 
摘要 ( 556 )   PDF (487KB) ( 1093 )  
相关文章 | 计量指标
Simulation and Optimization
Short-cut Method of Design and Energy-saving Analysis for Sargent Dividing wall Column
方静 程小敏 李晓春 相宁 李春利
2018, 20(4):  99-108. 
摘要 ( 508 )   PDF (741KB) ( 1212 )  
参考文献 | 相关文章 | 计量指标
 Sargent dividing wall column implement four products separations in one column based on Fully Thermally Coupled Distillation Column. The short-cut design method of a ten-column model for complex Sargent column was established. The internal minimum vapor and liquid flow are obtained by the Underwood equations and mass balance method. Considering the separation for a 4-component simple mixture of pentane, hexane, heptane and octane, the initial values of design parameter and the ratio of gas-liquid distribution of each column are calculated by using the short-cut design method of a ten-column model and V-min method. And by comparing short-cut calculations with rigorous simulation results, the practicality and reliability of short-cut calculations are verified. The reasons for energy saving are analyzed based on back-mixing and thermodynamics. A virtual heat exchanger is proposed to make the Sargent dividing wall column more energy efficient.
[DMIM]DMP萃取精馏分离乙酸甲酯-甲醇共沸物
李静 王克良 连明磊 李志 杜廷召
2018, 20(4):  109-116. 
摘要 ( 688 )   PDF (565KB) ( 1541 )  
相关文章 | 计量指标
以离子液体1,3-二甲基咪唑磷酸二甲酯([DMIM]DMP)为萃取剂,精馏分离乙酸甲酯和甲醇共沸物。采用Aspen Plus软件对萃取精馏过程进行了设计和优化。在最佳操作条件下,乙酸甲酯和甲醇的质量分数均在99.5 %以上。与采用二甲基亚砜(DMSO)为萃取剂的工艺相比,[DMIM]DMP工艺具有节能、设备投资低等优势。结果表明以[DMIM]DMP为萃取剂精馏分离乙酸甲酯和甲醇共沸物具有更好的工业应用前景。
Lubrication Research
甲基二乙醇胺脂肪酸酯提高矿物基础油的生物降解性和摩擦学性能
丁建华 方建华 陈波水 张楠 范兴钰 郑哲
2018, 20(4):  117-124. 
摘要 ( 522 )   PDF (923KB) ( 740 )  
相关文章 | 计量指标
制备了甲基二乙醇胺正辛酸酯和甲基二乙醇胺油酸酯,采用润滑剂生物降解快速测定仪和四球试验机分别研究了这两种甲基二乙醇胺脂肪酸酯对400SN矿物基础油生物降性和摩擦学性能的影响,试验结果表明甲基二乙醇胺正辛酸酯和甲基二乙醇胺油酸酯明显促进了基础油的生物降解,提高了基础油的摩擦学性能。利用扫描电子显微镜(SEM)、能谱仪(EDS)和X射线光电子能谱(XPS)分析了磨斑的表面形貌及元素的化学状态,试验结果表明这两种甲基二乙醇胺脂肪酸酯在磨斑表面形成了由吸附膜和摩擦化学反应产生的Fe2O3 ,Fe3O4及含氮化合物的化学反应膜组成的复杂的边界润滑膜,从而提高了基础油的抗磨减摩性能。