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Biomass gasification,catalytic technologies and energy integration for production of circular methanol:New horizons for industry decarbonisation

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Journal of Environmental Sciences 2024年第6期140卷 306-318页

作者： Luis F.Bobadilla Lola Azancot Miriam González-Castañ Estela Ruíz-López Laura Pastor-Pérez Francisco J.Durán-Olivencia runping ye Katie Chong Paula HBlanco-Sánchez Zenthao Wu Tomás R.Reina JoséA.Odriozola Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla Centro Mixto CSIC-Universidad de SevillaAvda.Américo Vespucio 49Sevilla 41092Spain Departamento de Ingeniería Universidad Loyola AndalucíaAvda.de Las Universidades s/nSevilla 41704Spain Key Laboratory of Jiangxi Province for Environment and Energy Catalysis School of Chemistry and Chemical EngineeringNanchang UniversityNanchang330031China Energy and Bioproducts Research Institute(EBRI) Aston UniversityBirminghamB47ETUnited Kingdom Department of Chemical and Process Engineering University of SurreyGuildfordGU27XHUnited Kingdom

The Intergovernmental Panel on Climate Change(IPCC)recognises the pivotal role of renewable energies in the future energy system and the achievement of the zero-emission target.The implementation of renewables should provide major opportunities and enable a more secure and decentralised energy supply system.Renewable fuels provide long-term solutions for the transport sector,particularly for applications where fuels with high energy density are required.In addition,it helps reducing the carbon footprint of these sectors in the long-term.Information on biomass characteristics feedstock is essential for scaling-up gasification from the laboratory to industrial-scale.This review deals with the transformation biogenic residues into a valuable bioenergy carrier like biomethanol as the liquid sunshine based on the combination of modified mature technologies such as gasification with other innovative solutions such as membranes and microchannel reactors.Tar abatement is a critical process in product gas upgrading since tars compromise downstream processes and equipment,for this,membrane technology for upgrading syngas quality is discussed in this paper.Microchannel reactor technology with the design of state-of-the-art multifunctional catalysts provides a path to develop decentralised biomethanol synthesis from biogenic residues.Finally,the development of a process chain for the production of(i)methanol as an intermediate energy carrier,(ii)electricity and(iii)heat for decentralised applications based on biomass feedstock flexible gasification,gas upgrading and methanol synthesis is analysed.

关键词： Biogenic residues Gasification Biomethanol Circular Economy Microreactors

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Fine particle trace elements at a mountain site in southern China:Source identification,transport,and health risks

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Journal of Environmental Sciences 2024年第7期141卷 166-181页

作者： Jiaoping Xing runping Ding Feifeng Chen Linyu Peng Wenhua Wang Xiaoyan Song Qing ye Yuanqiu Liu Key Laboratory of State Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed School of ForestryJiangxi Agricultural UniversityNanchang 330045China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China College of Geosciences and Engineering North China University of Water Resources&Electric PowerZhengzhou 450046China

Trace elements in atmospheric particulate matter play a significant role in air quality,human health,and biogeochemical cycles.In this study,the trace elements(Ca,Al,K,Fe,Na,Mg,Zn,Pb,Mn,Ti,Cu,Cr,Sr,Ni)in PM2.5samples collected at the summit of Mt.Lushan were analyzed to quantify their abundance,source,transport,and health risks.During the whole sampling period,the major trace elements was Ca,Al,and K.While the trace metals with the lowest concentrations were Sr,Ni,Rb,and Cd.The trace elements were influenced by air mass transport routes,exhibiting an increasing trend of crustal elements in the northwesterly airmass and anthropogenic elements(Zn,Mn,Cu,and Ni)in the easterly air masses.Construction dust,coal+biomass burning,vehicle emission,urban nitrate-rich+urban waste incineration emissions,and soil dust+industry emissions were common sources of PM2.5on Mt.Lushan.Different air mass transport routes had various source contribution patterns.These results indicate that trace elements at Mt.Lushan are influenced by regional anthropogenic emissions and monsoon-dominated trace element transport.The total resulting cancer risk value that these elements posed were below the acceptable risk value of 1×10^(-6),while the non-carcinogenic risk value(1.72)was higher than the safety level,suggesting that non-carcinogenic effects due to these trace elements inhalation were likely to occur.Vehicle emission and coal+biomass burning were the common dominant sources of non-cancer risks posed by trace elements at Mt.Lushan.

关键词： Trace elements Risk assessment Cluster analysis Source apportionment

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A theoretical insight about co-pyrolysis reaction of natural gas and coal

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Chinese Journal of Chemical Engineering 2023年第11期63卷 220-225页

作者： Mingjun Pan Chengkai Jin Bingying Han runping ye Rongbin Zhang Gang Feng School of Future Technology School of Chemistry and Chemical EngineeringInstitute of Applied ChemistryNanchang UniversityNanchang 330031China School of Chemistry and Chemical Engineering Nanchang UniversityNanchang 330031China State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024China

The co-pyrolysis of natural gas and coal is a promising way for the production of acetylene due to its high efficiency for energy and hydrogen utilization.This work investigated the thermodynamics for the copyrolysis reaction of natural gas and coal using density functional theory.The favorable reaction conditions are presented in the form of phase diagrams.The calculation results show that the extra amount of methane may benefit the production of acetylene in the co-pyrolysis reaction,and the C/H ratio of 1:1,temperature around 3000 K and pressure at 0.1 MPa are most favorable.The results would provide basic data for related industrial process for the production of acetylene.

关键词： Natural gas Thermodynamics Hydrocarbons Co-pyrolysis Gibbs free energy Density functional theory

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Edge-enriched N, S co-doped hierarchical porous carbon for oxygen reduction reaction

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Chinese Chemical Letters 2023年第2期34卷 349-354页

作者： Fangfang Chang Panpan Su Utsab Guharoy runping ye Yanfu Ma Huajun Zheng Yi Jia Jian Liu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China Department of Applied Chemistry and Zhejiang Carbon Neutral Innovation Institute Zhejiang University of TechnologyHangzhou 310032China DICP-Surrey Joint Centre for Future Materials Department of Chemical and Process EngineeringUniversity of SurreyGuildfordSurrey GU27XHUnited Kingdom

The development of carbon materials with high electrochemical performance for next-generation energy device is emerging, especially N, S co-doped carbon materials have sparked intensive attention. However,the exploration of N, S co-doped carbon with well-defined active sites and hierarchical porous structures are still limited. In this study, we prepared a series of edge-enriched N, S co-doped carbon materials through pyrolysis of thiourea(TU) encapsulated in zeolitic imidazolate frameworks(TU@ZIF) composites,which delivered very good oxygen reduction reaction(ORR) performance in alkaline medium with onset potential of 0.94 V vs. reversible hydrogen electrode(RHE), good stability and methanol tolerance. Density functional theory(DFT) calculations suggested that carbon atoms adjacent to N and S are probable active sites for ORR intermediates in edge-enriched N, S co-doped carbon materials because higher electron density can enhance O_(2)adsorption, lower formation barriers of intermediates, improving the ORR performance comparing to intact N, S co-doped carbon materials. This study might provide a new pathway for improving ORR activity by the integration engineering of edge sites, and electronic structure of heteroatom doped carbon electrocatalysts.

关键词： Porosity engineering N S co-doped carbon materials Hierarchical porous carbon Edge-enriched carbon Oxygen reduction reaction DFT calculation

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Design of mesoporous ZnCoSiOx hollow nanoreactors with specific spatial distribution of metal species for selective CO_(2)hydrogenation

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Nano Research 2023年第4期16卷 5601-5609页

作者： Xinyao Wang runping ye Melis S.Duyar Cameron Alexander Hurd Price Hao Tian Yanping Chen Na Ta Hao Liu Jian Liu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical and Process Engineering University of SurreyGuildfordSurrey GU27XHUK Department of Chemical Engineering and Analytical Science University of ManchesterManchesterUK Centre for Clean Energy Technology University of Technology SydneySydneyBroadway NSW 2007Australia DICP-Surrey Joint Centre for Future Materials Advanced Technology InstituteUniversity of SurreyGuildfordSurrey GU27XHUK

In heterogeneous catalysis,the precise placement of active components to perform unique functions in cooperation with each other is a tremendous challenge.The migration of matter on micro/nano-scale caused by diffusion is a promising pathway for design of catalytic nanoreactors with precise active sites location and controllable microenvironment through compartmentalization and confinement effects.Herein,we report two categories of mesoporous ZnCoSiOx hollow nanoreactors with different metal distributions and microenvironment engineered by the diffusion behavior of metal species in confined nanospace.Double-shelled hollow structures with well-distributed metal species were obtained by adopting core@shell structured ZnCo-zeolitic imidazolate framework(ZIF)@SiO2 as a template and employing three stages of hydrothermal treatment including the decomposition of ZIF,diffusion of metal species into the silica shell,and Ostwald ripening.Additionally,the formation of yolk@shell structure with a collective(Zn-Co)metal oxide as the yolk was achieved by direct pyrolysis of ZnCo-ZIF@SiO2.In CO_(2)hydrogenation,ZnCoSiOx with double-shelled hollow structures and yolk@shell structures respectively afford CO and CH_(4)as main product,which is related with different dispersion and location of active sites in the two catalysts.This study provides an efficient method for the synthesis of catalytic nanoreactors on the basis of insights of the atomic diffusion in confined space at the mesoscale.

关键词： mesoporous materials structure-activity relationships supported catalysts metal-organic frameworks nanostructures

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不同环境功能区大气颗粒物中水溶性有机碳的污染特征及其吸光性研究

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环境科学学报 2024年第4期44卷 252-262页

作者：丁润萍程振宇陆国繁彭琬钰韦玉贵幸娇萍叶清刘苑秋王燕江西农业大学鄱阳湖流域森林生态系统保护与修复国家林业和草原局重点实验室南昌330045 江西农业大学林学院南昌330045

为了探究不同环境功能区水溶性有机碳(WSOC)光学特性的差异及其影响因素,本研究采集了江西农业大学(城区)、南昌梅岭森林公园(郊区)和庐山风景区(背景点)的大气细颗粒物(PM_(2.5))样品.采用总有机碳分析仪和紫外可见分光光度计对WSOC浓... 详细信息

为了探究不同环境功能区水溶性有机碳(WSOC)光学特性的差异及其影响因素,本研究采集了江西农业大学(城区)、南昌梅岭森林公园(郊区)和庐山风景区(背景点)的大气细颗粒物(PM_(2.5))样品.采用总有机碳分析仪和紫外可见分光光度计对WSOC浓度及吸光系数(Abs_(365))、质量吸收效率(MAE_(365))和吸收波长指数(AAE)进行测量与估算.结果表明,城区、郊区和背景点均存在不同程度的PM_(2.5)污染,浓度水平呈城区>郊区>背景点的趋势.WSOC浓度水平呈郊区>城区>背景点的趋势,郊区和城区WSOC浓度与PM_(2.5)浓度有显著的相关性,而背景点没有显著相关性,说明城区和郊区的WSOC与PM_(2.5)颗粒物来源更具有同源性.WSOC的Abs_(365)呈城区>郊区>背景点的特点,3个观测点WSOC均存在一定量的吸光性物质,且城区的WSOC含有更多的吸光性物质.WSOC的MAE_(365)呈城区>背景点≈郊区的特点,说明城区的WSOC中有更强吸光性物质.郊区和背景点WSOC的MAE_(365)值相近,说明虽然背景点WSOC中含有较少的吸光性物质,但其含有的吸光性物质具有更强的吸光能力.3个观测点WSOC的AAE值接近,但分布范围有所不同.郊区的AAE值变化范围较大,WSOC的来源可能更为复杂.城区和背景点的AAE分布在4.7~7.0水平的占比较大,说明二次有机气溶胶(SOA)可能是城区和背景点WSOC的主要来源.WSOC的Abs_(365)与WSOC含量有关,随污染程度增加而增加.而WSOC的MAE_(365)与WSOC含量和Abs_(365)大小无关,高污染水平下不一定具有高MAE_(365).高污染水平下WSOC的吸光性更倾向于短波长,且污染水平越高,WSOC的Abs、MAE的波长依赖性越强.

关键词： PM_(2.5) 水溶性有机碳(WSOC) 光学特性不同环境功能区

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Low-temperature(NO + O_(2)) adsorption performance of alkaline earth metal-doped C-FDU-15

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Journal of Environmental Sciences 2021年第5期33卷 172-184页

作者： runping Wu Qing ye Kai Wu Hongxing Dai Key Laboratory of Beijing on Regional Air Pollution Control Department of Environmental ScienceCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of Chinaand Laboratory of Catalysis Chemistry and NanoscienceDepartment of Chemistry and Chemical EngineeringCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China

To improve the removal capacity of NO + O_(2) effectively, the alkaline earth metal-doped order mesoporous carbon(A-C-FDU-15(0.001)(A = Mg, Ca, Sr and Ba)) and Mg-C-FDU-15( x)( x = 0.001-0.003) samples were prepared, and their physicochemical and NO + O_(2) adsorption properties were determined by means of various techniques. The results show that the sequence in(NO + O_(2)) adsorption performance was as follows: Mg-C-FDU-15(0.001)(93.2 mg/g) > Ca-C-FDU-15(0.001)(82.2 mg/g) > Sr-C-FDU-15(0.001)(76.1 mg/g) > Ba-C-FDU-15(0.001)(72.9 mg/g) > C-FDU-15(67.1 mg/g). Among all of the A-C-FDU-15(0.001) samples, Mg-C-FDU-15(0.001) possessed the highest(NO + O_(2)) adsorption capacity(106.2 mg/g). The species of alkaline earth metals and basic sites were important factors determining the adsorption of NO + O_(2) on the A-C-FDU-15( x) samples, and(NO + O_(2)) adsorption on the samples was mainly chemical adsorption. Combined with the results of(NO + O_(2))-temperatureprogrammed desorption((NO + O_(2))-TPD) and in situ diffused reflectance infrared Fourier transform spectroscopy(DRIFTS) characterization, we deduced that there were two main pathways of(NO + O_(2)) adsorption: one was first the conversion of NO and O_(2) to NO_(2) and then part of NO_(2) was converted to NO_(2)^(-) and NO_(3)^(-);and the other was the direct oxidation of NO to NO-2 and NO_(3)^(-).

关键词： C-FDU-15 Alkaline earth metal NO+O_(2)adsorption Adsorption mechanism Adsorption kinetics

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Carbon dioxide adsorption behaviors of aluminum-pillared montmorillonite-supported alkaline earth metals

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Journal of Environmental Sciences 2020年第12期32卷 109-117页

作者： Kai Wu Qing ye runping Wu Sha Chen Hongxing Dai Key Laboratory of Beijing on Regional Air Pollution Control Department of Environmental ScienceCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of Chinaand Laboratory of Catalysis Chemistry and NanoscienceDepartment of Chemistry and Chemical EngineeringCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China

The Al-pillared montmorillonite-supported alkaline earth metal 5M/Al-PILC(PILC = pillared clay, M = Mg, Ca, Sr, and Ba) and x Mg/Al-PILC( x = 1, 3, 5, and 7 wt.%) samples were prepared using an impregnation method. Physical properties of the materials were determined by means of X-ray diffraction(XRD) and N2 adsorption-desorption, and their CO2 adsorption behaviors were investigated using the thermogravimetric analyzer(TG), CO2 temperatureprogrammed desorption(CO2-TPD), and in situ diffuse reflectance infrared transform spectroscopy(in situ-DRIFTS) techniques. It is shown that 5 Mg/Al-PILC possessed the highest CO2 adsorption capacity(2.559 mmol/g). The characterization results indicate that Alpillaring increased the specific surface area of montmorillonite, which was beneficial for the adsorption of CO2. The CO2 adsorption process on the sample was mainly chemical adsorption, and alkalinity was the main factor influencing its adsorption capacity. The alkalinity of the sample was enhanced by loading an appropriate amount of alkaline earth metal, and the adsorbed CO2 was present in the form of bicarbonate and carbonate. In addition, the 5Mg/Al-PILC sample exhibited an excellent regeneration efficiency. We believe that the outcome of this research would provide a good option for developing highly effective CO2 adsorption materials.

关键词： Montmorillonite Al-pillaring Adsorbent CO2 adsorption Alkaline earth metal

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Adsorption performance of CMK-3 and C-FDU-15 in NO removal at low temperature

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Journal of Environmental Sciences 2020年第1期32卷 289-298页

作者： runping Wu Qing ye Kai Wu Shuiyuan Cheng Tianfang Kang Hongxing Dai Key Laboratory of Beijing on Regional Air Pollution Control Department of Environmental ScienceCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of Chinaand Laboratory of Catalysis Chemistry and NanoscienceDepartment of Chemistry and Chemical EngineeringCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China

CMK-3 and C-FDU-15 samples were synthesized using hard-templating and evaporationinduced self-assembly(EISA)methods,respectively.The pore structures of CMK-3 and CFDU-15 as well as commercial activated carbon were characterized by means of X-ray diffraction,field emission scanning electron microscopy,transmission electron microscopy,and N2 adsorption–desorption.Adsorption of NO was investigated by means of thermogravimetric analysis,temperature-programmed desorption of NO+O2,and in situ diffuse reflectance Fourier transform infrared spectroscopy.The results show that the CMK-3 and C-FDU-15 materials possessed ordered and uniform structures.The coadsorption capacity of NO and O2 decreased in the sequence CMK-3(88.6 mg/g)>C-FDU-15(71.7 mg/g)>AC(25.3 mg/g).There were two main adsorption species on CMK-3 and CFDU-15:nitrite and nitrate.Nitrite is converted to nitrate easily.However,the adsorption species were more complex on AC,with nitrite being the main species.Moreover,CMK-3 and C-FDU-15 exhibit excellent regeneration efficiency compared with AC.The excellent NO adsorption performance of CMK-3 and C-FDU-15 was associated with their ordered mesoporous structures and high surface areas.The research provides more options for NO adsorption in the future.

关键词： Ordered mesoporous carbon material CMK-3 C-FDU-15 NO adsorption species Regeneration performance

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浓香型白酒新国家标准的变化分析

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酿酒科技 2024年第1期 135-139页

作者：叶华夏谢正敏郑佳赵东薛润萍范涛黄箭李茂春固态发酵资源利用四川省重点实验室四川宜宾644007 宜宾五粮液股份有限公司四川宜宾644007 中国轻工业固态浓香型白酒重点实验室四川宜宾644007

回顾了浓香型白酒国家标准的修订过程,从定义、感官标准、理化标准等三个方面的变化比较了新旧标准的不同。新标准在定义的修改上体现了文化自信,更加准确的描述了浓香型白酒的传统工艺;感官标准的变化更加精确的描述了浓香型白酒的典... 详细信息

回顾了浓香型白酒国家标准的修订过程,从定义、感官标准、理化标准等三个方面的变化比较了新旧标准的不同。新标准在定义的修改上体现了文化自信,更加准确的描述了浓香型白酒的传统工艺;感官标准的变化更加精确的描述了浓香型白酒的典型风味特征;在理化指标上,客观、科学的体现了浓香型白酒中的酸酯平衡等。讨论了适用性和理化指标方面的一些不足。新标准的实施将引导广大消费者更加重视产品质量,极大的推进了白酒检测技术的发展。

关键词：浓香型白酒国家标准白酒

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