冀中能源信息

冀中能源集团成功跨入世界500强2011年7月7日,美国《财富》正式公布2011年世界500强企业名单,冀中能源集团位列第458位。据了解,《财富》世界500强的排名是以公司年销售收入和利润为主要评定依据,是衡量某个企业规模、效益和实力的最权威参照     

河南煤化集团跻身世界500强

近日,河南省政府新闻办举行新闻发布会,宣布河南煤化集团凭借2010年度营业收入1469亿元（217．147亿美元）,进入2011年世界500强企业行列。据介绍,河南煤化集团在世界500强企业中排名第445位,填补了河南没有世界500强企业的空白。     

2012年世界500强揭晓 中国石化居第五

分析了2012年世界500强排名呈现出的特点,重点介绍了入围2012年世界500强的石油化工公司排名情况。     

2009年世界500强揭晓中国石化首次跻身前十强

分析了2009年世界500强排名呈现出的6大特点,重点介绍了入围2009年世界500强的石油化工公司排名情况。     

2010年世界500强揭晓中国上榜公司数目大幅增加

分析了2010年世界500强排名呈现出的6大特点,重点介绍了入围2010年世界500强的石油化工公司排名情况.     

2008年世界500强揭晓中国石化继续居中国公司之首

分析了2008年世界500强排名呈现出的5大特点，重点介绍了入围2008年世界500强的石油化工公司排名情况。     

2007年世界500强揭晓中国石化首次跻身20强

分析了2007年世界500强排名呈现出的5大特点,重点介绍了入围2007年世界500强的石油化工公司排名情况.     

2010年世界500强揭晓中国上榜公司数日大幅增加

分析Y2010年世界500强排名呈现出的6大特点，重点介绍了入围2010年世界500强的石油化工公司排名情况。     

广东新明珠、萨米特携手双双晋百强

广东新明珠陶瓷集团有限公司在广东省500强企业排名第99位,广东萨米特陶瓷有限公司在广东省制造业百强企业排名第43位。2011年7月21日,广东省企业联合会、广东省企业家协会以2010年企业营业收入为基本标准,排出了2011年广东省企业500强、广东省制造业百强企业。广东新明珠陶瓷集团有限公司凭藉良好的经营业绩排名广东省500强企业第99位,其子集团广东萨米特陶瓷有限公司排名2011广东省制造业百强企业第43位。这也是陶瓷行业惟一上榜的企业。     

河南煤业化工集团再次上榜世界500强

河南煤业化工集团再次上榜世界500强,排名比去年上升49个位次!近日,《财富》中文网发布了2012年《财富》世界500强排行榜,河南煤化集团以279.192亿美元的营业收入,排名第397位。《财富》世界500强排行榜一直是衡量全球大型公司的最著名、最权威的榜单,由《财富》杂志每年发布一次。     

2006年世界500强最新揭晓中国石化列第23位居入选中国公司之首

重点介绍了2006年世界500强最新揭晓的石油化工公司排名情况。其中,中国共有23家入围,中国石化居入选中国公司之首;炼油公司增多且排名急剧上升,同时化工类公司数目也有所增加,但位次下滑。     

我国有色金属及烟气制酸振兴规划与发展

2008年我国10种有色金属总产量为25 191.9 kt,同比增长6.72%;冶炼烟气制酸产量15430 kt,同比增长16.8%.预测2009-2011年我国铜、铅、锌、镍等主要有色金属产能将有较大幅度增长,预计到2011年底,我国将新增冶炼烟气制酸产能约4500 kt/a,2011年我国冶炼烟气制酸产量将达到20000 kt.有色金属工业必须落实<有色金属产业调整和振兴规划>各项措施,加快产业结构调整和技术升级,促进我国有色金属工业健康、稳定发展.     

2013年世界500强能源企业竞争新态势

总结了2013年世界500强的总体情况和中国企业上榜情况,详细分析了能源企业以及以煤炭企业为代表的中国能源企业的发展新态势,结合当前形势,对未来煤炭等能源企业的发展趋势进行了展望。     

减渣500℃含量高的优化操作及效果

分析中石化东兴厂常减压装置受环保,气候,蜡油处理方案变化等因素影响,2011年八月上旬减渣500℃含量超出指标要求,最高达6.8 mL。为提高馏分油收率,进行了优化调整:提高增压器蒸汽量,调整减三中段回流量,增加塔底汽提量,提高炉出口温度等措施。渣油500℃含量由6.8 mL下降到4.9 mL。     

Alumina nanofibers obtained from poly(vinyl alcohol)/boehmite nanocomposites

Poly(vinyl alcohol) (PVA)/boehmite nanocomposite (precursor) nanofibers were formed by electrospinning using a PVA aqueous solution of dispersed boehmite nanoparticles as the spinning solution. The alumina nanofibers were obtained by calcination of the precursor nanofibers between 500 and 1200°C. The specific surface area of the precursor nanofibers was around 6 m²/g, and that of the γ‐alumina nanofibers calcined at 500°C was around 300 m²/g. The specific surface areas and the fiber diameters were not affected by the alumina contents in the precursors. Also, the diameter of the alumina nanofibers was not affected by the calcination temperature of the precursor nanofibers. The pore characteristics of the alumina nanofibers decreased with increased calcination temperature due to the sintering, and nonporous α‐alumina nanofibers were obtained by calcination of the precursor nanofibers at 1200°C. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

Thermodynamic performance assessment of vacuum membrane-based dehumidification and air carrying energy radiant air-conditioning system(VMD-ACERS)

Temperature and humidity independent control(THIC)air-conditioning system is a promising technol-ogy.In this work,a novel temperature and humidity independent control(THIC)system is proposed,namely VMD-ACERS,which integrates vacuum membrane-based dehumidification and air carrying energy radiant air-conditioning system.This work establishes a novel coefficient of performance(COP)model of VMD-ACERS.The main parameters affecting the COP of conventional fan coil unit cooling sys-tem(FCUCS)and VMD-ACERS are investigated.The performance of FCUCS and VMD-ACERS are com-pared,and the energy-saving potential of VMD-ACERS is proved.Results indicate that,for FCUCS,the importance ranking of parameters is basically stable.However,for VMD-ACERS,the importance ranking will be affected by FCU and refrigerant.The most important parameters of VMD-ACERS are condensation temperature and permeate side pressure.On the contrary,superheating,subcooling are relatively less important parameters.For VMD-ACERS,it is not necessary to pursue the membrane with very high selec-tivity,because the selectivity of membrane would also be a less important parameter when it reaches 500.The COP of VMD-ACERS is higher than that of FCUCS when the permeate side pressure is higher than 8 kPa.The VMD-ACERS solves two technical problems about power-saving and thermal comfort of con-ventional THIC,and can extend the application of THIC air-conditioning system.     

Theoretical and experimental study of the melting process of high‐density polyethylene for multidimensional vibration equipment

A model for investigating the melting process under a vibration force field is presented. The key parameters of this model are as follows: the rotation of the screw and heat are supplied by the vibration force field for the material phase conversion. A multidimensional vibration desk (DWZD‐500) and low‐density polyethylene material were used to investigate the effect of the vibration parameters on the melting process. A comparison of the derived model and experimental results revealed that increasing the vibration parameters increased the melting mass. This study will serve as the theoretical basis to optimize the parameters of vibration extruders' processing polymers. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

Crystallization behavior and mechanical properties of polypropylene random copolymer/poly(ethylene‐octene) blends

New polymer blends of polypropylene random copolymer (PP‐R) and poly(ethylene‐octene) (POE) were prepared by melt‐blending process using a corotating twin‐screw extruder. The POE content was varied up to 35%. The toughening efficiency of POE for PP‐R was evaluated by the mechanical properties of the resulted PP‐R/POE blends. The crystallization behavior and morphology of the blends were also studied. Results show that POE acts as nucleation agent to induce the crystallization of PP‐R matrix at higher crystallization temperature. Super‐toughened PP‐R/POE blends (Izod impact strength more than 500 J/m) can be readily achieved with only 10 wt % of POE. The high toughness of PP‐R/POE is attributed to cavitation and shear yielding of matrix PP‐R, as revealed by the morphology studies. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

Research of styrene‐butadiene rubber/silicon‐aluminum oxides nanotube binary nanocomposites

A novel silicon‐aluminum oxides (Si‐Al) nanotubes with length ranging from 500 to 1000 nm were introduced to fabricate the styrene‐butadiene rubber (SBR)/Si‐Al nanotube binary nanocomposites. Scanning electron microscope observation showed the Si‐Al nanotubes up to 20 parts per hundred parts of rubber (phr) loading level were dispersed well in SBR matrix. Mechanical properties tests, thermogravimetry analysis and dynamic mechanical thermal analysis revealed that the Si‐Al nanotubes have the effects on improving shore A hardness, tensile strength, tear strength, initial decomposition temperature, and storage modulus while lower the maximum loss factor (tan δ) of the SBR/Si‐Al nanotube binary nanocomposites. FTIR spectra analysis showed that new Si O bond was generated between the hydroxyl group of Si‐Al nanotube and the coupling reagent Si69. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011