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煤基液化柴油产品特性及调和试验研究

洁净煤技术 2019年第S2期25卷 29-34页

作者：梁雪美张安贵刘素丽安良成国家能源集团宁夏煤业有限公司宁夏银川750001

通过分析煤直接液化和间接液化柴油烃类组成和理化性能,研究了直接液化柴油和间接液化柴油工艺和产品特点差异性及差异性产生的原因,并与国Ⅵ标准柴油(-10号)进行了对比分析。结果表明,煤直接液化柴油和煤间接液化柴油产品性质具有良好... 详细信息

通过分析煤直接液化和间接液化柴油烃类组成和理化性能,研究了直接液化柴油和间接液化柴油工艺和产品特点差异性及差异性产生的原因,并与国Ⅵ标准柴油(-10号)进行了对比分析。结果表明,煤直接液化柴油和煤间接液化柴油产品性质具有良好的互补性:调和柴油的密度满足线性可加性,可根据目标值计算出调和比例;调和柴油的运动黏度随着间接液化柴油的质量分数的增加而增加,增加范围决于定2种原料的运动黏度值;调和柴油的凝点和冷滤点根据调和比例可调整为-50~3℃,满足国Ⅵ标准不同型号柴油要求;分别使用0~250 mg/kg不同添加量的脂肪酸型和脂肪酸酯型抗磨剂,发现调和柴油对抗磨剂具有较好的感受性,降低了调和柴油的磨痕直径。2者调和能生产出满足标准要求的低硫低芳清洁柴油,且对抗磨剂具有良好的感受性。

关键词：煤直接液化煤间接液化调和柴油抗磨剂感受性

废MTP催化剂对模拟废水中对二甲苯的吸附作用

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净水技术 2020年第9期39卷 114-120,178页

作者：赵娜娜金政伟庄壮张安贵苏慧国家能源集团宁夏煤业有限责任公司煤炭化学工业技术研究院宁夏银川750411

将工业MTP装置排放的废MTP催化剂进行酸碱硅烷化改性处理后,分析其结构,并进行吸附对二甲苯(PX)废水的试验研究,分别考察吸附时间、吸附温度、吸附剂用量、PX初始浓度以及pH对PX吸附率的影响。结果表明,在T=45℃、pH值=6、t=20 min、吸... 详细信息

将工业MTP装置排放的废MTP催化剂进行酸碱硅烷化改性处理后,分析其结构,并进行吸附对二甲苯(PX)废水的试验研究,分别考察吸附时间、吸附温度、吸附剂用量、PX初始浓度以及pH对PX吸附率的影响。结果表明,在T=45℃、pH值=6、t=20 min、吸附剂用量为0.6 g、PX初始浓度为2.1 g/L的吸附条件下,吸附率达到最大值89.6%。改性废MTP催化剂吸附废水中的对二甲苯符合二级吸附动力学方程,改性废MTP催化剂对PX的等温吸附特征可用Langmuir方程描述。

关键词：废MTP 催化剂对二甲苯吸附动力学吸附等温线

Research on optimization and design methods for air distribution system based on target values

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Building Simulation 2021年第3期14卷 721-735页

作者： Ran Gao Hengchun zhang angui Li Shihao Wen Wuyi Du Baoshun Deng School of Building Services Science and Engineering Xi'an University of Architecture and TechnologyXi'an 710055China School of Thermal Engineering Shandong Jianzhu UniversityJinan 250101ShandongChina China Railway First Survey&Design Institute Group Xi'an 710043China

To achieve sufficient air conditioning of large buildings,reasonable air distribution in indoor spaces is an effective method for creating stratified air ***,optimizing the air distribution in large buildings is extremely *** this paper,we expound on a new method for air distribution design and optimization based on target value evaluation and summarize the relevant design processes based on an orthogonal test and by decoupling the effects of the size of the tuyere,airflow temperature,air-supply angle and velocity on air ***,we present a design *** optimize the distribution of a lateral air supply in winter,the deflection angle,velocity and temperature of the air supply can be determined in *** the large and tall building types addressed in this paper,the optimal air-supply angle is 2°,the optimal air-supply velocity is 8 m/s,and the optimal air-supply temperature is 19℃.

关键词： air distribution target value indicator optimization

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氨法脱硫装置生产过程中存在问题及解决方案

能源科技 2023年第1期21卷 67-70页

作者：张安贵刘吉平朱中华颜蜀雋国家能源集团宁夏煤业有限责任公司煤炭化学工业技术研究院宁夏灵武750411

国家能源集团宁夏煤业有限责任公司硫回收装置尾气处理系统采用了氨法脱硫工艺。本文介绍了氨法烟气脱硫技术的原理、工艺流程,阐述了装置运行情况及在运行过程中出现的问题,分析了异常情况产生的原因。通过在脱硫塔底部增加浓缩脱硫段... 详细信息

国家能源集团宁夏煤业有限责任公司硫回收装置尾气处理系统采用了氨法脱硫工艺。本文介绍了氨法烟气脱硫技术的原理、工艺流程,阐述了装置运行情况及在运行过程中出现的问题,分析了异常情况产生的原因。通过在脱硫塔底部增加浓缩脱硫段、脱硫塔顶加设除雾器,以及脱硫塔外增设循环氧化槽等方法,解决了氨法脱硫装置尾气不达标、硫酸铵溶液氧化率低且无法结晶等影响装置长周期稳定生产的难题。

关键词：氨法脱硫硫酸铵氧化率氨逃逸脱硫塔

Airflow pattern and performance of attached ventilation for two types of tiny spaces

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Building Simulation 2022年第8期15卷 1491-1506页

作者： Haiguo Yin Yanyan Li Da zhang Yuekun Han Jiali Wang Yongshou zhang angui Li School of Building Services Science and Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina The key Lab of Plateau Building and Eco-community in Qinghai Xining 810008QinghaiChina Qinghai Building and Materials Research Co. LtdXining 810008QinghaiChina Energy Engineering Design Institute Energy and Environmental Engineering Research InstituteChina IPPR International Engineering Co.Ltd.BeijingChina

With the emergence of urban sentry boxes and capsule hotels,the development of tiny spaces with the concept of a reasonable minimum occupied space has attracted widespread attention from *** ventilation mode that fits with the limited geometric characteristics of tiny spaces is worth *** with the respective ventilation requirements of two types of tiny spaces,i.e.,sentry box space and tiny sleeping space,this paper proposes two attached ventilation modes.A full-scale experiment cabin was established,and the simulation method was optimized through experimental *** airflow pattern and distribution performance of the two attached ventilation modes in two types of tiny spaces were studied by the CFD *** results showed that the airflow attached to the vertical wall could form an air curtain at the opening windows of the sentry box space,but there is a phenomenon of air *** installation of the deflector can improve the integrity of the air curtain,and the best installation angle of the deflector is 60 *** double side-attached ventilation mode in the tiny sleeping space can not only relieve the draught of the occupants(DR<15%),but also firstly deliver fresh air to the occupied zone(expiratory zone MAA<92 s).The research conclusions will add new ideas to the diversity of ventilation modes in tiny spaces.

关键词： sentry box space tiny sleeping space attached ventilation air curtain draught rate

A low-resistance elbow with a bionic sawtooth guide vane in ventilation and air conditioning systems

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Building Simulation 2022年第1期15卷 117-128页

作者： Chi zhang angui Li Jigang Che Yue Li Qi Liu Yuhang Zhao School of Building Services Science and Engineering Xi'an University of Architecture and Technology(XAUAT)Xi'an 710055China The Artificial Environment Control Technology Achievement Innovation Center of XAUAT and Yantai Yantai 264006China

Elbow resistance is an important part of energy consumption in ventilation and air conditioning(VAC)*** considering the structural characteristics of bat wings and humpback whale pectoral fins,a simplified leading edge for sawtooth guide vanes is *** on the theory of fluid mechanics,the resistance reduction mechanism of the sawtooth guide vane is *** numerical calculation results show that proper sawtooth groove parameters for the guide vane can effectively reduce the elbow *** with that for a normal guide vane,the maximum resistance can be reduced by approximately 9%with the new *** addition,we analyze the influence of the sawtooth guide vane on the entropy production of the duct elbow and the relationship between entropy production and the resistance of the duct ***,the resistance reduction performance of the sawtooth guide vane is verified through full-scale tests.

关键词： bionic sawtooth grooves guide vane resistance entropy production

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氨法脱硫中游离酸波动原因分析及解决措施

石油化工应用 2021年第12期40卷 96-99页

作者：张安贵雷云飞颜蜀雋江永军国家能源集团宁夏煤业有限责任公司宁夏灵武750411

氨法脱硫技术在高效治理SO_(2)的同时可得到副产品硫酸铵,但存在硫酸铵的游离酸超标问题,影响硫酸铵质量和销售价格。本文从生产工艺过程控制角度出发,对影响硫酸铵产品游离酸波动的原因进行全面分析,并制定相应的调整措施。

关键词：氨法脱硫游离酸解决措施

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两种油砂加工方法的对比研究

炼油技术与工程 2010年第12期40卷 6-10页

作者：凌逸群王刚张安贵徐春明高金森中国石油大学(北京)重质油国家重点实验室北京市102249 中国石油化工股份有限公司北京市102249

分别采用溶剂萃取法和流化热转化法对内蒙古图牧吉油砂的加工方法进行了研究。溶剂萃取法可以得到油砂中几乎所有油品,但其液体产品具有高密度、高黏度及高残炭等特点,后续加工难度大;流化热转化法可以得到油砂中82.3%的油品,与溶剂萃... 详细信息

分别采用溶剂萃取法和流化热转化法对内蒙古图牧吉油砂的加工方法进行了研究。溶剂萃取法可以得到油砂中几乎所有油品,但其液体产品具有高密度、高黏度及高残炭等特点,后续加工难度大;流化热转化法可以得到油砂中82.3%的油品,与溶剂萃取法相比,其液体产品的性质得到了较大程度的改善。对流化热转化得到的液体产品进行分馏和分析,其中汽油、柴油收率之和达到了37.32%,但是需要进一步精制才能达到国家油品标准的质量要求;重油收率达到了62.68%,可以通过进一步掺炼实现其轻质化。

关键词：油砂油砂沥青流化热转化溶剂萃取抽提

Adaptive Wall-Based Attachment Ventilation:A Comparative Study on Its Effectiveness in Airborne Infection Isolation Rooms with Negative Pressure

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Engineering 2022年第1期8卷 130-137页

作者： Ying zhang Ou Han angui Li Li’an Hou Thomas Olofsson Linhua zhang Wenjun Lei School of Building Services Science and Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Department of Applied Physics and Electronics UmeåUniversityUmeåSE 90187Sweden School of Thermal Engineering Shandong Jianzhu UniversityJinan 250101China

The transmission of coronavirus disease 2019(COVID-19)has presented challenges for the control of the indoor environment of isolation *** air distribution design and operation management are crucial to ensure the environmental safety of medical *** paper proposes the application of adaptive wall-based attachment ventilation and evaluates this air supply mode based on contaminants dispersion,removal efficiency,thermal comfort,and operating *** wall-based attachment ventilation provides a direct supply of fresh air to the occupied *** comparison with a ceiling air supply or upper sidewall air supply,adaptive wall-based attachment ventilation results in a 15%–47%lower average concentration of contaminants,for a continual release of contaminants at the same air changes per hour(ACH;10 h^(-1)).The contaminant removal efficiency of complete mixing ventilation cannot exceed *** adaptive wall-based attachment ventilation,the contaminant removal efficiency is an exponential function of the *** with the ceiling air supply mode or upper sidewall air supply mode,adaptive wall-based attachment ventilation achieves a similar thermal comfort level(predicted mean vote(PMV)of0.1–0.4;draught rate of 2.5%–6.7%)and a similar performance in removing contaminants,but has a lower ACH and uses less energy.

关键词： Ventilation efficiency Air change rate COVID-19 Attachment ventilation Air distribution Isolation ward