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Optimization and simultaneous heat integration design of a coal-based ethylene glycol refining process

《化学科学与工程前沿（英文）》 2023年 第17卷 第9期   页码 1280-1288 doi: 10.1007/s11705-023-2301-4

摘要： Coal to ethylene glycol still lacks algorithm optimization achievements for distillation sequencing due to high-dimension and strong nonconvexity characteristics, although there are numerous reports on horizontal comparisons and process revamping. This scenario triggers the navigation in this paper into the simultaneous optimization of parameters and heat integration of the coal to ethylene glycol distillation scheme and double-effect superstructure by the self-adapting dynamic differential evolution algorithm. To mitigate the influence of the strong nonconvexity, a redistribution strategy is adopted that forcibly expands the population search domain by exerting external influence and then shrinks it again to judge the global optimal solution. After two redistributive operations under the parallel framework, the total annual cost and CO2 emissions are 0.61%/1.85% better for the optimized process and 3.74%/14.84% better for the superstructure than the sequential optimization. However, the thermodynamic efficiency of sequential optimization is 11.63% and 10.34% higher than that of simultaneous optimization. This study discloses the unexpected great energy-saving potential for the coal to ethylene glycol process that has long been unknown, as well as the strong ability of the self-adapting dynamic differential evolution algorithm to optimize processes described by the high-dimensional mathematical model.

关键词： ethylene glycol     redistribution     heat integration     optimization     parallel framework    

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The Major Root Causes of Smog in China and Technologies and Solutions to Reduce It

Ke Liu

《工程管理前沿（英文）》 2016年 第3卷 第4期   页码 343-348 doi: 10.15302/J-FEM-2016053

摘要： This paper discusses the two major root causes of smog in China. The first one is the distributed coal combustion in many small and medium sized boilers which have no emission control systems installed. To resolve this problem, there are several ways, such as increasing the centralized coal combustion for heat and power cogeneration; or converting coal to SNG in areas where there is enough water resource and removing the pollutants of the coal in the centralized coal to SNG plant, or refining the coal and making it cleaner first before combustion. The second major cause of smog is the low quality diesel and outdated diesel engines used in China. To solve this problem, there are some ways, such as improving the diesel quality to meet the national V standard, and meanwhile, enhancing the law enforcement to eliminate these outdated diesel engines that do not meet the national emission standards; in addition, combusting cleaner and cheaper fuel such as methanol or DME in the diesel engines is also an option for certain areas where there are abundant alternative fuels such as methanol to replace diesel.

关键词： smog     emissions     coal refining     coal utilization     solutions    

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Mesoporous zeolites as efficient catalysts for oil refining and natural gas conversion

Jie ZHU, Xiangju MENG, Fengshou XIAO

《化学科学与工程前沿（英文）》 2013年 第7卷 第2期   页码 233-248 doi: 10.1007/s11705-013-1329-2

摘要： Zeolites have been regarded as one of the most important catalysts in petrochemical industry due to their excellent catalytic performance. However, the sole micropores in zeolites severely limit their applications in oil refining and natural gas conversion. To solve the problem, mesoporous zeolites have been prepared by introducing mesopores into the zeolite crystals in recent years, and thus have the advantages of both mesostructured materials (fast diffusion and accessible for bulky molecules) and microporous zeolite crystals (strong acidity and high hydrothermal stability). In this review, after giving a brief introduction to preparation, structure, and characterization of mesoporous zeolites, we systematically summarize catalytic applications of these mesoporous zeolites as efficient catalysts in oil refining and natural gas conversion including catalytic cracking of heavy oil, alkylation, isomerization, hydrogenation, hydrodesulfurization, methane dehydroaromatization, methanol dehydration to dimethyl ether, methanol to olefins, and methanol to hydrocarbons.

关键词： mesoporous zeolite     catalysis     oil refining     natural gas conversion    

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LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

《结构与土木工程前沿（英文）》 2022年 第16卷 第7期   页码 871-881 doi: 10.1007/s11709-022-0863-8

摘要： The failure criteria of practical soil mass are very complex, and have significant influence on the safety factor of slope stability. The Coulomb strength criterion and the power-law failure criterion are classically simplified. Each one has limited applicability owing to the noticeable difference between calculated predictions and actual results in some cases. In the work reported here, an analysis method based on the least square support vector machine (LSSVM), a machine learning model, is purposefully provided to establish a complex nonlinear failure criterion via iteration computation based on strength test data of the soil, which is of more extensive applicability to many problems of slope stability. In particular, three evaluation indexes including coefficient of determination, mean absolute percentage error, and mean square error indicate that fitting precision of the machine learning-based failure criterion is better than those of the linear Coulomb criterion and nonlinear power-law criterion. Based on the proposed LSSVM approach to determine the failure criterion, the limit equilibrium method can be used to calculate the safety factor of three-dimensional slope stability. Analysis of results of the safety factor of two three-dimensional homogeneous slopes shows that the maximum relative errors between the proposed approach and the linear failure criterion-based method and the power-law failure criterion-based method are about 12% and 7%, respectively.

关键词： slope stability     safety factor     failure criterion     least square support vector machine    

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提高科技创新实力 实现我国炼油工业的持续发展

侯芙生

《中国工程科学》 2004年 第6卷 第3期   页码 6-14

摘要：

指出21世纪我国炼油工业要持续发展，国际竞争能力要大力提高，涉及到的原油资源战略、现代化企业管理、行业体制和机制、企业结构调整、人才机制以及科技创新等多方面问题。并就产品质量、深度加工、油化一体化、信息技术和运输燃料替代技术，以及如何提高科技创新力度、加强科技开发等技术发展战略，提出了一些对策和建议。

关键词： 炼油工业     科技创新     持续发展    

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Combining innovative science and policy to improve air quality in cities with refining and chemicals

David T. Allen

《化学科学与工程前沿（英文）》 2017年 第11卷 第3期   页码 293-304 doi: 10.1007/s11705-017-1660-0

摘要： In Houston, a combination of urban emissions from a city of 4 million people, coupled with emissions from extensive petroleum refining and chemical manufacturing, leads to conditions for photochemistry that are unique in the United States, and historically, the city had experienced some of the highest ozone concentrations recorded in the United States. Large air quality field studies (the Texas Air Quality Studies or TexAQS I and II) were conducted to determine root causes of the high ozone concentrations. Hundreds of air quality investigators, from around the world, deployed instruments on aircraft, on ships, and at fixed ground sites to make extensive air quality measurements; detailed photochemical modeling was used to interpret and assess the implications of the measurements. The Texas Air Quality Studies revealed that both continuous and episodic emissions of light alkenes, which came to be called highly reactive volatile organic compounds, played a critical role in the formation of ozone and other photochemical oxidants in the region. Understanding and quantifying the role of these emissions in regional air quality required innovations in characterizing emissions and in photochemical modeling. Reducing emissions required innovative policy approaches. These coupled scientific and policy innovations are described, and the result, substantially cleaner air for Houston, is documented. The lessons learned from the Houston air quality experience are relevant to cities with similar population and industrial profiles around the world.

关键词： ozone     air quality     highly reactive volatile organic compounds     Houston    

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迈向21世纪的炼油技术

侯芙生

《中国工程科学》 1999年 第1卷 第3期   页码 22-30

摘要：

21世纪石油仍将是主要能源，炼油技术将进一步发展。降低汽车排放污染的清洁汽油生产技术，低硫低芳清洁柴油生产技术，加氢法润滑油基础油生产技术，加氢裂化和催化裂化重质油转化技术，渣油加工和能量综合利用技术，炼油厂现代化信息技术和过程控制技术等，将成为迈向21世纪有发展前途的炼油技术。

关键词： 炼油技术     清洁燃料     重油转化     渣油加工     过程控制    

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跨入新世纪对我国炼油工业发展的思考

吕家欢,王欣红

《中国工程科学》 2000年 第2卷 第4期   页码 8-11

摘要：

我国炼油工业经过50年的发展已具备一定基础，1999年底原油加工能力已达250Mt，居世界第四位。跨世纪进一步发展，首先要解决好国内外两种原油资源的统筹利用，特别是进口原油所涉及的加工、储备、运输及资源安全等一系列问题。同时要从降低原油成本、提高开工负荷率、降低能耗物耗、延长开工周期、降低加工费用、提高产品质量、满足环保要求等方面全面提高与进口石油产品的竞争能力，应对加入WTO的挑战。

关键词： 新世纪     炼油工业     发展    

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Removal of multicomponent VOCs in off-gases from an oil refining wastewater treatment plant by a compost-based

Dan WU, Chunyan ZHANG, Li HAO, Changjun GENG, Xie QUAN,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 483-491 doi: 10.1007/s11783-009-0144-y

摘要： Waste gases from oil refining wastewater treatment plants are often characterized by the presence of multicomponent and various concentrations of compounds. An evaluation of the performance and feasibility of removing multicomponent volatile organic compounds (VOCs) in off-gases from oil refining wastewater treatment plants was conducted in a pilot-scale compost-based biofilter system. This system consists of two identical biofilters packed with compost and polyethylene (PE). This paper investigates the effects of various concentrations of nonmethane hydrocarbon (NMHC) and empty bed residence time (EBRT) on the removal efficiency of NMHC. Based on the experimental results and practical applications, an EBRT of 66 s was applied to the biofilter system. The removal efficiencies of NMHC were within the range of 47%―100%. At an EBRT of 66 s, the average removal efficiency of benzene, toluene, and xylene were more than 99%, 99%, and 100%, respectively. The results demonstrated that multicomponent VOCs in off-gases from the oil refining wastewater treatment plant could be successfully removed in the biofilter system, which may provide useful information concerning the design criteria and operation of full-scale biofilters.

关键词： biodegradation     volatile organic compounds (VOCs)     biofiltration     biofilter    

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我国与“一带一路”沿线国家炼化产业合作研究

曹湘洪,袁晴棠,邹劲松

《中国工程科学》 2019年 第21卷 第4期   页码 27-32 doi: 10.15302/J-SSCAE-2019.04.008

摘要：

本文从“一带一路”沿线国家的市场需求切入，在立足于我国炼化产业供应能力的基础上，研究了双方合作前景，提出了我国与“一带一路”沿线国家在资源、市场等方面的合作机遇。综合分析了资源、市场、支持政策和投资环境，采用层次分析法，分别遴选出了我国与“一带一路”沿线国家进行炼化投资、技术贸易、工程服务及装备出口的重点合作对象及重点任务；提出了全产业链协同推进、加大宣传推介、标准接轨、财政税收支持以及风险控制等政策建议。

关键词： “一带一路”     炼油产业     石油化工产业     合作    

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建设安全可靠、清洁环保型炼化企业

张树才,张晓华,贾萍,王倩,曹湘洪

《中国工程科学》 2019年 第21卷 第2期   页码 111-116 doi: 10.15302/J-SSCAE-2019.02.014

摘要：

针对城镇人口密集区等敏感地区炼油与化工企业搬迁改造的问题，在调研国外炼油与化工行业安全环保管理的先进经验的基础上，定义了安全可靠、清洁环保炼油与化工企业的内涵、指标体系和评估方法，提出构建安全可靠、清洁环保型炼油化工企业是解决问题的根本方法。以此为指导，开展了两家不同规模的炼油与化工企业案例研究，证明了本方法的可行性。建议有关部门强制采用科学方法计算外部安全距离和环境防护距离，并长期遵守，避免形成城围石化的现象；对敏感地区炼油与化工企业是异地搬迁还是按照安全可靠、清洁环保的指标要求就地改造，要通过认真的方案研究后科学决策。

关键词： 安全可靠     清洁     环保     炼油     化工     外部距离    

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新一代煤化工和洁净煤技术利用现状分析与对策建议

谢克昌

《中国工程科学》 2003年 第5卷 第6期   页码 15-24

摘要：

在论述煤炭的战略地位、利用现状和分析新一代煤化工技术与洁净煤技术利用现状的基础上，以科学规划所应遵循的原则，结合作者的科研实践，提出了我国发展新一代煤化工和洁净煤利用技术的建议。

关键词： 煤化工     洁净煤技术     对策    

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推进炼油与汽车行业协同发展战略研究

曹湘洪

《中国工程科学》 2019年 第21卷 第3期   页码 61-69 doi: 10.15302/J-SSCAE-2019.03.005

摘要：

电动车、燃料电池车等新能源汽车快速发展开启了汽车动力革命的大幕。内燃机汽车制造行业和油品生产行业通过满足最新排放限值要求、提升油品质量、推进内燃机技术不断进步等积极应对汽车动力革命。新能源汽车优势与劣势并存，短期内不具备全面替代内燃机汽车的条件。采用高效内燃机的油电混合动力汽车可大幅度降低污染物排放和碳排放，是符合我国国情的动力汽车。面向2050 年，内燃机汽车、油电混合动力汽车、燃料电池车、纯电动车等将发挥各自的技术优势，多元共存，但内燃机动力车会占据主体地位，汽车动力对液体燃料的依赖度还将会超过60%。炼油、汽车行业要推进协同发展，从分子层面研究内燃机中燃料的燃烧机理，研究车用燃料组成、馏程与颗粒物排放的关系并开发简化模型、开发并推广高品质燃料及高档润滑油，以适应汽车动力多元化时代新的低碳减排要求。

关键词： 汽车动力革命     内燃机技术     油品质量     协同发展    

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Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

《工程管理前沿（英文）》 2014年 第1卷 第1期   页码 13-17 doi: 10.15302/J-FEM-2014004

摘要： As the coal-dominated energy structure will remain unchanged in the short term, the sustainable development of the coal industry is still serving as one of the foundations for the sound development of the national economy. The construction of modernized mines based on "four orientations", that is, orientations of scale production, modern technology and equipment, informationized management and professional working team, has been rapidly enhancing its development in the recent decade. However, in the next decade or an even longer period, the industry, with the energy centre shifting to the West of China, will be exposed to new options and development in the layout, structure, model, technology, etc.

关键词： coal industry     sustainable development     the four-orientation model    

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标题 作者 时间 类型 操作

Optimization and simultaneous heat integration design of a coal-based ethylene glycol refining process

期刊论文

The Major Root Causes of Smog in China and Technologies and Solutions to Reduce It

Ke Liu

期刊论文

Mesoporous zeolites as efficient catalysts for oil refining and natural gas conversion

Jie ZHU, Xiangju MENG, Fengshou XIAO

期刊论文

LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

期刊论文

提高科技创新实力 实现我国炼油工业的持续发展

侯芙生

期刊论文

Combining innovative science and policy to improve air quality in cities with refining and chemicals

David T. Allen

期刊论文

迈向21世纪的炼油技术

侯芙生

期刊论文

跨入新世纪对我国炼油工业发展的思考

吕家欢,王欣红

期刊论文

Removal of multicomponent VOCs in off-gases from an oil refining wastewater treatment plant by a compost-based

Dan WU, Chunyan ZHANG, Li HAO, Changjun GENG, Xie QUAN,

期刊论文

我国与“一带一路”沿线国家炼化产业合作研究

曹湘洪,袁晴棠,邹劲松

期刊论文

建设安全可靠、清洁环保型炼化企业

张树才,张晓华,贾萍,王倩,曹湘洪

期刊论文

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

期刊论文

新一代煤化工和洁净煤技术利用现状分析与对策建议

谢克昌

期刊论文

推进炼油与汽车行业协同发展战略研究

曹湘洪

期刊论文

Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

期刊论文