Research for Local Government Influence to Industry Upgrading--Take Taizhou City of Zhejiang Province as an Example

目前，有关地方政府对产业升级作用的文献并不多见，但是在实践中，地方政府行为对产业升级的影响是显而易见的。本文以政府经济职能理论为基础，通过对地方政府在产业升级中作用的台州经验的理论抽象，重点阐述地方政府对产业升级作用的内在机理；以此为基础，本文也尝试构建合理地方政府行为的理论框架和实践框架。 本文的可能创新之处主要有三个方面：第一，在传统的政府经济职能理论框架下，引进制度变迁和经济发展阶段两个变量，使分析更接近中国的现实；第二，对地方政府行为模式给出三个更加接近现实的基本假定，在此基础上，揭示了道德风险、认知的滞后性和价值取向的不适应性可能是导致政府行为“诺思悖论”的直接原因；第三，通过对政...There is rare literature on local government influence to industry upgrading in the present world. However, the influence is obvious. In this paper, based on the government's economic function research literature, internal mechanism of government influence to industry is especially discussed by theory abstraction from Taizhou experience on promotion of industry upgrading. On this basis, the ration...学位：工商管理硕士院系专业：管理学院高级经理教育中心（EMBA项目）_高级管理人员工商管理硕士(EMBA)学号：X200615607

A Novel Co-decorated CNT-promoted CuO-ZnO-ZrO_2 Catalyst for CO_2 Hydrogenation to Methanol

通讯作者: hb zhang@ xmu.edu.cn[中文文摘]用一种金属Co修饰多壁碳纳米管基复合材料(y%Co/CNT)作为促进剂,制备一种高效新型的y%Co/CNT促进CuO-ZnO-ZrO2基催化剂(记为CuiZnjZrk-x%(y%Co/CNT)),考察其对CO2加氢制甲醇的催化性能.实验结果显示,在组成经优化的Cu8Zn2Zr5-10%(4.5%Co/CNT)催化剂上,5.0 MPa,523 K,V(H2)∶V(CO2)∶V(N2)=69∶23∶8,GHSV=25 000 mL/(h.g)的反应条件下,CO2加氢的转化频率达4.99×10-3s-1,分别是相同条件下非促进的原基质Cu8Zn2Zr5和单纯CNT促进的对应物Cu8Zn2Zr5-10%CNT上的相应值(4.31×10-3和4.64×10-3s-1)的1.16和1.08倍;催化剂的表征结果显示,金属Co修饰CNT促进的催化剂对H2优良的吸附活化性能对CO2加氢转化频率(TOF)的显著提高起主要作用.在CO2加氢产物中甲醇的C-基选择性达97.9%,单程时空产率为699 mg/(h.g),具有实用前景. [英文文摘]A type of Co-decorated CNT-promoted CuO-ZnO-ZrO2 catalysts was developed.The catalyst displays excellent performance for CO2 hydrogenation to methanol.Over a Cu8Zn2Zr5-10%(4.5%Co/CNT) catalyst under reaction conditions of 5.0 MPa,523 K,V(H2)∶V(CO2)∶V(N2) = 69∶23∶8 and GHSV = 25 000 mL/(h·g),the observed turnover frequency(TOF) of CO2 hydrogenation,i.e.,the number of CO2-molecule hydrogenated on unit site of exposed Cu0 per second(s-1),reached 4.99×10-3 s-1.This value was 1.16 and 1.08 times that(4.31×10-3 and 4.64×10-3 s-1) of the CNT-free substrate Cu8Zn2Zr-5 and the simple CNTpromoted counterpart Cu8Zn2Zr5-10%CNT,respectively, under the same reaction conditions.The selectivity of CH3OH in the CO2 hydrogenation products reached 97.9%, with corresponding STY reaching 699 mg/(h. g).Characterization of the catalyst revealed that the excellent capability of the Co-deco rated CNTpromoted catalyst for adsorbing and activating H2 played an important ro le in facilitating the increase of rate of surface CO2 hydrogenation reactions.国家“973”项目(2005CB221403,2009CB939804

CCVD法制碳纳米管用Ni-Mg-O催化剂的制备研究

用草酸盐共沉淀法制备一类固溶体型NixMg1-xO纳米催化剂.该类催化剂用于甲烷催化分解合成碳纳米管(CNTs)显示出优良的性能.催化剂的制备优化研究揭示,催化剂的金属元素组成、氧化前驱物的焙烧和还原的温度对催化剂的性能有强烈的影响.在经优化的制备条件(n(Ni)∶n(Mg)=0.5:0.5,焙烧温度873 K,H2-还原温度973 K)下制备的Ni0.5Mg0.5O催化剂上,在经优化的制管反应条件(873 K,甲烷原料气GHSV=5×104mL/(h.g))下,反应2 h的CNTs产物的产率达到14.5 g/g

A Highly Efficient Sc_2O_3-promoted Ni-ZrO_2 Catalyst for Methanation of Coal-based Syngas to Produce Synthetic Natural Gas

用SC2O3作为促进剂,研发出一种SC2O3掺杂的高效新型nI-zrO2基催化剂,该催化剂对CO和CO2共甲烷化制合成天然气(Sng)显示出高的活性和优异的热稳定性.在组成经优化的nI6zr3SC1催化剂上,0.1 MPA,573k,V(H2)∶V(CO)∶V(CO2)∶V(n2)=75∶15∶5∶5,出口空速gHSV=40 000Ml/(H·g)的反应条件下,在反应开始之后的20~332H的反应过程中,CO和CO2的转化率一直分别保持在100%和85%的高水平,产物甲烷的选择性一直保持在100%.耐热试验结果显示,在973k下经历24H甲烷化反应、而后降至573k的nI6zr3SC1催化剂试样上,(CO+CO2)的总转化率仍能稳定地保持在80.2%的水平;而不含SC2O3的原基质催化剂(nI6zr4)在经历相同耐热试验过程之后的(CO+CO2)总转化率骤降至2.7%,暗示其因烧结而失活.催化剂的表征结果证实,可观量的SC3+溶解入zrO2晶格导致具有C-zrO2结构的单一C-(zr-SC)Oy相的生成并使其稳定化,这类C-(zr-SC)Oy相与nI6zr3SC1催化剂的高活性,尤其与优良的热稳定性,密切相关.A type of highly efficient Ni-ZrO2catalysts doped with Sc2O3for co-methanation of CO and CO2 was developed,and displayed high activity and excellent thermal stability.Over a Ni6Zr3Sc1catalyst under the reaction conditions of 0.1 MPa,573 K,V(H2)∶V(CO)∶V(CO2)∶V(N2)=75∶15∶5∶5,GHSV=40 000mL/(h·g)(outlet),the observed conversion of CO and CO2maintained continuously at high levels of 100%and 85%,respectively,during 20-332hafter the reaction started,with the corresponding selectivity of CH4product being 100%.The results of heat-resisting test showed that,over the Ni6Zr3Sc1catalyst after undergoing 24h of the methanation operation at 973Kfollowed by going down to 573K,the total conversion of(CO+CO2)still maintained stable at the level of 80.2%,whereas that of the Sc2O3-free Ni6Zr4catalyst after undergoing the same heat-resisting test fell to 2.7%,implying that it was deactivated due to sintering.The results of the catalyst characterization demonstrated that solution of a considerable amount of Sc3+in the ZrO2lattice resulted in the formation of(Zr-Sc)Oy composite oxide with simple c-ZrO2phase-structure,which was closely associated with the high activity,especially the extremely high thermal stability,of the Ni6Zr3Sc1catalyst.国家重点基础研究发展计划(973)项目(2011CBA00508); 优秀国家重点实验室基金项目(20923004); 教育部创新团队项目(IRT1036

CNTs Promoted Highly Efficient Supported Pt Catalyst for Hydrogenation-dearomatization of Toluene

开发了一类以CnTS-γ-Al2O3复合材料为载体的高效催化甲苯加氢脱芳的PT基催化剂.实验结果表明,适量添加少量的CnTS能显著提高PT基催化剂催化甲苯加氢脱芳的活性.经组分优化的1.0%(质量分数)PT/8%CnTS-γ-Al2O3催化剂上,在2.0MPA、363k、V(C7H8)∶V(H2)=1∶6.7、1 035l/(H·g)的反应条件下,甲苯转化率可达85.9%,时空收率为501.7g/(H·g),分别是相同条件下γ-Al2O3、CnTS、γ-Al2O3(商品)和SIO2负载催化剂上相应值(458.9、445.1、435.8和406.3g/(H·g))的1.09、1.13、1.15和1.24倍.进一步,联合多种谱学表征技术对催化剂进行表征,探讨CnTS对促进催化剂催化芳烃加氢的作用本质.研究结果表明,以CnTS-γ-Al2O3为载体的工作态PT基催化剂上甲苯加氢脱芳的表观活化能与系列常规载体负载的参比体系上的相应值基本一致,表明少量CnTS的添加并不改变催化反应途径,但却提升了工作态催化剂表面具有催化活性的PT0物种在表面总PT量中所占比例;与γ-Al2O3负载的参比体系相比,CnTS-γ-Al2O3负载的PT基催化剂增强的催化加氢活性可能源于CnTS对氢的适度吸附、活化及溢流性能.A type of CNTs-γ-Al2 O3 hybrid material-supported Pt catalysts for the hydrogenation-dearomatization(HDA)of toluene was developed,which displayed excellent performance for HDA of toluene.Over the 1.0%Pt/8%CNTs-γ-Al2 O3 catalyst,under the reaction conditions of 2.0 MPa、363K、V(C7 H8)∶V(H2)=1∶6.7、GHSV=1 035L/(h·g),the observed conversion of toluene reached 85.9%,with the corresponding STY of being 501.7g/(h·g),this value was 1.09,1.13,1.15and 1.24times those of 1.0% Pt/γ-Al2 O3 、1.0%Pt/CNTs、1.0%Pt/γ-Al2 O3(goods)and 1.0%Pt/SiO2 catalysts,respectively,under the same reaction.Moreover, the impact of CNTs on the catalytic activity was investigated with a series of physico-chemical techniques,the characterized results showed that a small part of CNTs in the support of the catalyst did not cause a significant change in the apparent activation energy for the HDA reaction of toluene,but led to a certain increase in the molar percentage of catalytically active Pt-species(Pt0)in the total Pt-amount at the surface of the functioning catalyst.In addition,the Pt/CNTs and Pt/CNTs-γ-Al2 O3 catalyst could reversibly adsorb agreater amount of hydrogen under atmospheric pressure and temperatures ranging from room temperature to 773K.This unique feature would help to generate a microenvironment with higher stationary state concentration of active hydrogen-adspecies at the surface of the functioning catalyst.These effects favored increasing the rate of the HDA reaction of toluene.国家重点基础研究发展计划(973)项目(2011CBA00500); 福建省自然科学基金(E0510001

能量自给型垃圾堆肥系统优化与污染物排放控制

根据城市生活垃圾的特性，进行垃圾综合处理，充分利用垃圾中各组分的有用价值。对能量自给型垃圾堆肥综合系统选择与整合集成进行详细的分析，同时测定和分析了运行过程中的污染物排放及生产产品肥料的质量。从环境污染控制和垃圾物尽其用的角度，对系统进行优化与选择集成的分析，提出对垃圾系统工程进行改善的建议，污染物的控制措施急待加强

铁水平面射流连续脱硫反应器的概念设计

在总结文献的基础上，借鉴瀑布流法的原理，提出了一种新的平面身流连续反应器铁水脱硫法，其结构简单，面置灵活，占用空间小，操作方便，适合我国中小高炉和化铁炉进行铁水预处理