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The effect of operating conditions on acylation of 2-methylnaphthalene in a microchannel reactor

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Chinese Journal of Chemical Engineering 2018年第6期26卷 1307-1311页

作者： Wenpeng Li Suohe Yang Xiaoyan Guo Guangxiang He Haibo Jin beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology College of Chemical EngineeringBeijing Institute of Petrochemical Technology

Acylation of 2-methylnaphthalene(2-MN) is a very important reaction in organic synthesis,and the effiency of the continuous reactor is more than one of the batch *** that the Friedel–Crafts acylation is a rapid exothermic reaction,in this study,we perform the acylation of 2-MN in a stainless steel microchannel flow reactor,which is characterized by high mass and heat transfer *** effect of reactant ratio,mixing temperature,reaction temperature,and reaction time on product yield and selectivity were *** the optimal conditions,2-methyl-6-propionylnaphthalene(2,6-MPN) was obtained in 85.8% yield with 87.5% *** with the conventional batch system,the continuous flow microchannel reactor provides a more efficient method for the synthesis of 2,6-MPN.

关键词： Acylation Microchannel reactor 2-Methylnaphthalene 2-Methyl-6-propionylnaphthalene

catalytic Hydrogenation Performance of Methyl Isobutyl Ketone over Ni/γ-Al_2O_3 Catalysts

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China Petroleum Processing & Petrochemical technology 2018年第4期20卷 29-36页

作者： Liu Lixia Liao Tao Jin Haibo He Guangxiang Yang Suohe Guo Xiaoyan Luo Guohua beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology School of Chemical Engineering Beijing Institute of Petrochemical Technology

Supported nickel-based catalysts were prepared by the incipient wetness impregnation method for the selective hydrogenation of methyl isobutyl ketone to methyl isobutyl carbinol in a fixed-bed reactor. The effects of the nickel source,Ni loading, calcination time, and calcination temperature on the hydrogenation performance were studied. The experimental results showed that the Ni/γ-Al_2O_3 catalyst demonstrated the highest catalytic performance under the preparation conditions by using nickel nitrate as the nickel source with a NiO loading of 20%, followed by calcination at 440°C for 5h. In addition,this catalyst showed the largest specific surface area, best crystal structure, highest active component content, smallest particle size, and uniform distribution of NiO on the surface of the carrier. The nickel-based catalyst prepared using the optimized conditions exhibited a 96.1% conversion of methyl isobutyl ketone, with a methyl isobutyl carbinol selectivity of 99.6%. The described procedure is very effective for the preparation of methyl isobutyl carbinol using methyl isobutyl ketone as the feedstock.

关键词： Ni/γ-Al2O3 catalysts hydrogenation methyl isobutyl ketone(BIBK) methyl isobutyl carbinol(MIBC)

Research on Hydrogenolysis of Glycerol to 1, 2-Propylene Glycol by Using Supported Raney-Cu/Al2O3

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China Petroleum Processing & Petrochemical technology 2019年第2期21卷 27-34页

作者： Zhang Lanxi Cao Yongzheng Wang Huiguo Li Ning Luo Guohua Xu Xin College of Chemical Engineering Beijing Institute of Petrochemical Technology Beijing 102617 beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology Beijing 102617

New supported Raney-Cu catalyst was prepared from pseudo-boehmite powder and copper aluminum alloy powder. It could be used in a continuous-flow fixed-bed reactor and it was also a good catalyst for hydrogenolysis of glycerol to propylene glycol after the two raw materials were processed by the following procedures: molding, drying, calcination, and leaching. XRD, H2-TPR, as well as SEM technique were employed to study the physicochemical properties of the catalysts, and the hydrogenolysis of glycerol to 1,2-propylene glycol (1,2-PDO) was used as a probe to evaluate the performance of supported skeletal copper catalysts. The test result indicated that CuAl2 was the main crystal phase of precursor after the dried strips were calcined at 850 °C in air. A part of CuAl2 was oxidized to α-Al2O3, which was the main contributor to the strength of Raney-Cu/Al2O3, while the remaining CuAl2 was converted to active skeletal copper after the leaching process. The effects of reaction temperature, hydrogen pressure, LHSV, hydrogen-oil ratio, glycerol concentration, and alkaline additives on the catalytic performance were studied in water or ethanol, respectively. Conversion of glycerol and selectivity of 1,2-PDO were 30.9% and 91.4% in water, or 99.0% and 73.6% in the ethanol system, respectively, when the reaction was performed at a temperature of 215 °C, a H2 pressure of 3 MPa, a LHSV of 1.0 h-1, a hydrogen-oil ratio of 500, and a glycerol concentration of 20%(ethyl alcohol solution).

关键词： glycerol hydrogenolysis 1,2-PDO Raney-Cu/Al2O3 solvent effect

In-depth investigation on the factors affecting the performance of high oil-absorption resin by response surface method

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Chinese Journal of Chemical Engineering 2021年第5期34卷 286-296页

作者： Lei Ma Hongxia Lv Haonan Yu Lingtong Kong Rongyue Zhang Xiaoyan Guo Haibo Jin Guangxiang He Xiaoyan Liu beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology College of Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617China Water Resource Office of Jining City Shandong ProvinceJining 272019China

A series of high oil-absorption resins with low cross-linking degree were synthesized by suspension polymerization using stearyl methacrylate(SMA),2-Ethylhexyl methacrylate(EHMA),and styrene(St)as *** surface methodology(RSM)with central composite design(CCD)was also applied to determine the optimal parameters that are mainly known to affect their ***,the effects of the monomer mass ratio(EHMA:SMA),the rigid monomer(St)dosage,the porous agent(acetone)dosage,and their pairwise interaction on the resin's oil-absorption capacity were analyzed,highlighting PSES-R_(2) as the resin with the optimum *** pure oil-absorption rates of PSES-R_(2) for gasoline,diesel,and kerosene were 11.19 g·g^(-1),16.25 g·g^(-1),and 14.84 g·g^(-1),respectively,while the oil removal rates from oily wastewater were 98.82%,65.11%,and 99.63%,respectively.

关键词： Oil-absorption resin Response surface method Oil removal rate Waste water Absorption Polymerization

Fabrication of novel bifunctional nanohybrid based on layered rare-earth hydroxide with magnetic and fluorescent properties

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Frontiers of Materials Science 2020年第4期14卷 488-496页

作者： Qingyang GU jinyan LI Liangshuo JI Ruijun JU Haibo JIN Rongyue ZHANG Department of Chemical Engineering Beiing Institute of Petrochemical TechnologyBejing 102617China Beiing key laboratory of fuels cleaning and advanced catalytic emission reduction technology Beiing 102617China

We demonstrate the fabrication of a novel magnetic nanohybrid involving the drug molecule 5 aminolevulinic acid(5-ALA)intercalated Gd-Eu layered rare-earth hydroxide(LRH)coated on magnesium ferrite particles(MgFe2O4).The structure,thermostability,morphology,luminescence properties,cytotoxic effect and magnetism are *** 5-ALA intercalated composite may correspond to a monolayered vertical arrangement,and the thermal stability of organics is enhanced after *** LRH precursor shows red emission of Eu^3+and the maximum emission peak of the composite is at 451 nm,corresponding to the blue *** detection of drug molecules can be realized through the change of *** magnetic nanohybrid shows strong magnetic sensitivity,which provides an easy and efficient way to separate 5-ALA-MgFe2O4@LGd0.95H:Eu0.05 particles from a sol or a suspension system and to carry drugs to targeted locations under an external magnetic *** cytotoxic effect of MgFe2O4@LRH is observed with a sulforhodamine B(SRB)colorimetric assay,which has low cytotoxic effects on selected *** fabrication of novel bifunctional drug carriers based on LRH with magnetic and fluorescent properties has potential applications in drug detection and drug delivery.

关键词： layered rare-earth hydroxide magnesium ferrite nanohybrid magnetism luminescence

Insights into the stable and fast lithium storage performance of oxygen-deficient LiV_(3)O_(8) nanosheets

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Nano Research 2021年第3期14卷 814-822页

作者： Huanqiao Song Feng Liu Mingsheng Luo Department of Chemical Engineering Beijing Institute of Petrochemical TechnologyBeijing102617China beijing key laboratory of Clean fuels and Efficient catalytic emission reduction technology Beijing102617China

Oxygen-deficient LiV_(3)O_(8) is considered as one of the promising cathode materials for lithium ion batteries(LIBs)because of its high cycling stability and rate ***,it is very difficult to control and study the content and position of V^(4+)and oxygen vacancies in LiV_(3)O_(8),and therefore the mechanism of improving electrochemical performance of LiV_(3)O_(8) is still ***,we developed four LiV_(3)O_(8) nanosheets with different V^(4+)and oxygen vacancy contents and *** physicochemical and lithium storage properties indicate that the V^(4+)and oxygen vacancies in the surface layer increase the contribution of pseudocapacitive lithium storage on the nanosheet *** V^(4+)and oxygen vacancies in the lattice improve the electrical conductivity of LiV_(3)O_(8),and enhance the phase transformation and lithium ion diffusion *** adjusting the content of V^(4+)and oxygen vacancies,we obtained an oxygen-deficient LiV_(3)O_(8) nanosheet which maintained more than 93%of the initial reversible capacity after 300 cycles at 5,000 mA·g^(−1).The V^(4+)and oxygen vacancies play an important role in improving the stability and rapidity of lithium *** work is helpful to understand the stable and fast lithium storage mechanism of oxygen-deficient LiV_(3)O_(8),and might lay a foundation for further studies of other oxygen-deficient metal oxide electrodes for long-life and high-power LIBs.

关键词： oxygen-deficient LiV_(3)O_(8) fast lithium storage high stability tetravalent vanadium ion oxygen vacancy

Use of catalytic wet air oxidation (CWAO) for pretreatment of high-salinity high-organic wastewater

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Journal of Environmental Sciences 2022年第10期34卷 105-114页

作者： Wenjing Sun Hongxia Lv Lei Ma Xiangdong Tan Chengyu Jin Huiling Wu Lili Chen Mengyang Liu Huangzhao Wei Chenglin Sun Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology College of Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617China University of Chinese Academy of Sciences Beijing 100049China

catalytic wet air oxidation(CWAO)coupled desalination technology provides a possibility for the effective and economic degradation of high salinity and high organic *** widely occurs in natural and wastewaters,and its high content jeopardizes the efficacy of advanced oxidation process(AOPs).Thus,a novel chlorine ion resistant catalyst Bsite Ru doped LaFe_(1-x)Ru_(x)O_(3-)δin CWAO treatment of chlorine ion wastewater was ***,LaFe_(0.85)Ru_(0.15)O_(3-δ)was 45.5% better than that of the 6%RuO_(2)@TiO_(2)(commercial carrier)on total organic carbon(TOC)***,doped catalysts LaFe_(1-x)Ru_(x)O_(3-)δshowed better activity than supported catalysts RuO_(2)@LaFeO_(3) and RuO_(2)@TiO_(2) with the same Ru ***,LaFe_(0.85)Ru_(0.15)O_(3-)δhas novel chlorine ion resistance no matter the concentration of Cl^(−) and no Ru dissolves after the reaction.X-ray diffraction(XRD)refinement,X-ray photoelectron spectroscopy(XPS),transmission electron microscope(TEM),and X-ray absorption fine structure(XAFS)measurements verified the structure of LaFe_(0.85)Ru_(0.15)O_(3-)δ.Kinetic data and density functional theory(DFT)proved that Fe is the site of acetic acid oxidation and adsorption of chloride *** existence of Fe in LaFe_(0.85)Ru_(0.15)O_(3-)δcould adsorb chlorine ion(catalytic activity inhibitor),which can protect the Ru site and other active oxygen species to exert catalytic *** work is essential for the development of chloride-resistant catalyst in CWAO.

关键词： catalytic wet air oxidation Heterogeneous catalysis LaFe_(1-x)Ru_(x)O_(3-)δ Chlorine wastewater Salt resistance mechanism

Effect of Preparation Process on Compressive Strength and Hydrogenation Performance of Raney-Ni/Al2O3 Catalyst

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China Petroleum Processing & Petrochemical technology 2017年第2期19卷 14-20页

作者： Luo Guohua Wang Yanli Sun Daming Xu Xin Jin Haibo College of Chemical Engineering Beijing Institute of Petrochemical Technology Beijing 102617 beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology beijing 102617 key laboratory of Fine Chemicals School of Chemical EngineeringDalian University of Technology Dalian 116024

In this study, Raney-Ni/Al_2O_3 catalysts were prepared from precursors which were calcined in different atmosphere(argon and air) and leached for different time. XRD, SEM, H_2-TPR and BET techniques were introduced to characterize the catalysts, and hydrogenation of unsaturated hydrocarbons, including vinyltoluene, dicyclopentadiene and indene, was used as probe reaction to evaluate the catalytic hydrogenation performance of the catalysts. The results demonstrated that the calcination atmosphere had noticeable effects on the compressive strength and hydrogenation performance of Raney-Ni/Al_2O_3. The catalyst calcined in argon exhibited better compressive strength and catalytic performance than the one calcined in air. The compressive strength and activity stability of catalyst were also determined by the leaching time. A too longer leaching time was not conducive to improving the compressive strength and catalytic performance of catalysts. When the precursor calcined in argon was treated in a 15%(by wt.) sodium hydroxide solution at 343 K for 5 h, a catalyst with higher compressive strength(at 26.10 N/mm) was obtained and the conversion of vinyltoluene, dicyclopentadiene(DCPD), and indene could amount to more than 87.5%, 99% and even 100%, respectively, under the reaction conditions covering a temperature of 493 K, a hydrogen pressure of 2.0 MPa, a LSHV of 3.0 h^(-1), and a hydrogen/oil ratio of 200:1.

关键词： nickel-aluminum alloy pseudo-boehmite unsaturated hydrocarbon hydrogenation

The high catalytic activity and strong stability of 3%Fe/AC catalysts for catalytic wet peroxide oxidation of m-cresol: The role of surface functional groups and FeO_(x) particles

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Chinese Journal of Chemical Engineering 2022年第4期35卷 105-114页

作者： Peiwei Han Chunhua Xu Yamin Wang Chenglin Sun Huangzhao Wei Haibo Jin Ying Zhao Lei Ma beijing key laboratory of fuels cleaning and advanced catalytic emission reduction technology/College of Chemical Engineering Beijing Institute of Petrochemical TechnologyBeijing 102617China Shandong key laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityQingdao 266237China Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China

FeO;supported on activated carbon(AC) has been shown to be an ideal catalyst for catalytic wet peroxide oxidation(CWPO) due to its high CWPO reaction activity and stability. Although there have been some studies on the mechanism of Fe/AC catalysis in CWPO, the specific contribution of each component(surface oxygen groups and FeOxon AC) inside an Fe/AC catalyst and their corresponding reaction mechanism remain unclear, and the reaction stability of CWPO catalysts has rarely been discussed. Then the optimal CWPO catalyst in our laboratory, 3%Fe/AC, was selected.(1) By removing certain components on the AC through heat treatment, its contribution to the reaction and the corresponding reaction mechanism were investigated. With the aid of temperature-programmed desorption–mass spectrometry(TPD–MS) and the CWPO reaction, the normalized catalytic contributions of components were shown to be: 37.3%(carboxylic groups), 5.3%(anhydride), 19.3%(ether/hydroxyl),-71.4%(carbonyl groups) and 100%(FeOx),respectively. DFT calculation and EPR analysis confirmed that carboxylic groups and Fe_(2)O_(3) are able to activate the H_(2)O_(2) to generate·OH.(2) The catalysts at were characterized at different reaction times(0 h, 450 h, 900 h, 1350 h, and 1800 h) by TPD–MS and M?ssbauer spectroscopy. Results suggested that the number of carboxylic goups gradually increased and the size of paramagnetic Fe_(2)O_(3) particle crystallites gradually increased as the reactions progressed. The occurrence of strong interactions between metal oxides and AC was also confirmed. Due to these effects, the strong stability of 3%Fe/AC was further improved. Therefore, the reasons for the high activity and strong stability of 3%Fe/AC in CWPO were clearly shown. We believe that this work provides an idea of the removal of cresols from wastewater into the introduction to show the potential applications of CWPO.

关键词： catalytic wet peroxide oxidation Fe/AC catalyst Surface functional groups Reaction mechanism