莺—琼气区天然气主气源及注入史分析

通过对莺歌海盆地和琼东南盆地天然气、凝析油的地球化学特征分析，认为莺歌海盆地底辟带天然气主气源为上第三系梅山组，三亚组海相泥岩，YC13－1气田天然气主气源为下第三系陵水组，崖城组滨海沼泽及 浅海相源岩，有机包裹体，成岩作用和天然气分布等研究结果表明，莺歌海盆地底壁带天然气为多期幕式充注，最晚一期为富含CO2天然气的充注，YC13－1气田天然气总体上为连续充注。

莺歌海盆地CO2气的成因及其主气源

根据地质、地化资料及热模拟实验结果，并应用物理化学理论，对莺歌海盆地CO2气的成因及其主气源作了综合研究，认为本区CO2气属壳源型岩石化学成因，其生成，分布，富集主要受控于泥底辟的发育演化；认为3100m以下莺歌海组二段及黄流组富含碳酸盐的砂泥岩是CO2主气源。

医用氧气供应源选择要素的研究

目的:对选择医用氧气供应源需考虑的因素进行对比分析研究,总结出选择医用氧气供应源的要素。方法:对医用液氧供应源、医用氧气汇流排供应源和医用分子筛制氧机供应源3种常用氧气供应源分别执行的国家标准和各氧气供应源的特点进行分析,归纳出选择氧气供应源的要素。结果:依据政策法规标准要求、站房场地条件和经济条件是医用氧气供应源选择的主要因素。结论:在充分了解国家和当地相关法律法规的基础上,根据建设项目的场地条件,结合地区技术水平和经济水平进行综合分析比较,方可做出医用氧气供应源科学合理的选择。

湖北2020年六成城镇居民用上天然气

近日,湖北省发改委印发《湖北省天然气发展“十三五”规划》,提出实施“县县通”“气化乡镇”工程,力争到2020年全省城镇天然气居民用户达到550万户,气化率达到60%.《规划》提出,将以国家主干管道天然气为主气源,以自产常规气、页岩气、LNG作为补充和应急气源,构建多元化气源供应格局.

塔里木油田超1250亿m^3天然气造福15省区市

截至2014年2月17日,塔里木油田累计向西气东输管道系统输送天然气超1250亿m3,达到1251.78亿m3。塔里木是西气东输一线的源头也是主气源地之一,目前担负着向以上海为中心的华东地区和以北京为中心的华北地区等15个省区市、120个大中型城市、3000余家大中型企业及4亿沿线居民供气的任务。据有关资料统计,塔里木油田输送的1251.78亿m3天然气,

Energy conservation research of dehumidification system for main cable anticorrosion of suspension bridge

The necessity of the main cable anticorrosion for suspension bridge is described, and operating principles and composition of main cable dehumidification system are analyzed. An idea using the waste heat of high temperature outlet air of dehumidification system to heat up regeneration air of rotary-type dehumidifier is put forward in this paper. The concrete scheme is to install a heat exchanger on air-out pipeline of roots blower and air-in pipeline of regeneration electric heater of rotary dehumidifier. Air preheated by the heat exchanger enters regeneration electric heater of rotary-type dehumidifier. Energy conservation of main cable dehumidification system for the Yangtze River highway bridge is calculated, and the results show that energy conservation rate can reach 44 %.

Polychlorinated biphenyis in Beijing soil of China

The concentrations of polychlorinated biphenyls （PCBs） have been determined in soils collected in Beijing of China. According to Principle Component Analysis （PCA） of PCBs, the possible sources were studied. Relationship between PCBs and soil organic materials revealed that higher chlorinated PCBs are more inclined to be adsorbed by particles rich of organic materials. But the low chlorinated homologues are dominant in Beijing soils, which is very different from the foreign studies. It was concluded that the application of relatively low chlorinated commercial PCBs in China was the main reason leading to this homologue composition character. Besides, the relatively short pollution history is also one of the main reasons. PCA of PCBs data in Beijing soil and atmospheric deposition samples revealed that some other emission sources such as atmospheric deposition, automobile exhaust; chemical and petrochemical industry and steel industry may be the important reasons of elevated PCBs concentrations in Beijing soil

多气源、多模式气化我国中小城镇

人类从懂得用火熟食至今，已经历了应用植物燃料、固体燃料、液体燃料、气体燃料四个阶段。气体燃料的应用，则又从煤气开始，过渡到液化石油气，再由煤气、液化石油气混合使用，过渡到天然气大管网供气，以天然气为主气源，人工煤气、液化石油气、煤层气、二甲醚等其它气源为辅助气源。

多气源多模式气化我国中小城镇

人类从懂得用火熟食至今．燃料的应用经历了植物燃料、固体燃料、液体燃料、气体燃料四个阶段。气体燃料的发展则又从煤气的供应开始．过渡到液化石油气，再由煤气、液化石油气混合使用过渡到天然气大管网供气，以天然气为主气源，人工煤气、液化石油气、煤层气、二甲醚等其它气源为辅助气源。