CPS 硫磺回收工艺在塔中某处理厂的应用

塔中某处理厂硫磺回收采用分流法低温克劳斯工艺,通过一级常规克劳斯和三级低温克劳斯反应完成单质硫的回收和尾气的处理,保证硫收率达到99.25％以上及尾气排放合格。文中对装置的工艺特点进行简单介绍,并对生产过程中遇到的问题与应对措施进行分析和说明,充分证明了CPS硫磺回收工艺非常适合该处理厂的实际情况。     

NIR光谱法快速分析总黄酮醇苷和萜类内酯

采用NIR法和化学计量学方法构建了银杏叶片中的总黄酮醇苷和萜类内酯含量的定量分析模型。通过PLS建立数学模型,并对预测集样品进行预测。39份样品经交叉验证建立校正模型,RSMECV分别为0.104和0.063。R分别为0.978 8和0.961 9。用13份样品进行预测,R达0.919 9和0.931 8,RSMEP分别为0.107和0.105。该方法简便快速,结果准确,可应用于不同批次银杏叶片样品的进行快速检查或质量控制。     

火区综合治理技术研究与应用

改扩建矿井在建设期间,经常要用到矿井部分老巷道,这些老巷道顶帮普遍存在高冒区和破碎煤体松动裂隙区,容易引发火灾。针对这一问题,通过对金地煤业13号煤层火区治理的实践,获得了高冒区和破碎煤体松动裂隙区煤体的氧化、自燃及发生和发展规律,积累了大量火区治理技术和火区管理方面的经验,对其他矿区的火灾治理具有重要的借鉴意义。     

宁东地区延安组泥页岩油气资源勘探潜力评价

宁东地区延安组沉积有泥页岩岩层,该套泥页岩至今仍是页岩油气资源勘探的盲区。本文通过对宁东地区的泥页岩野外露头和岩芯样品进行泥页岩基本性质的测定,发现研究区延安组泥页岩粘土矿物含量较高,有机碳含量高,干酪根类型以Ⅱ2型为主。但是,此套泥页岩的有机质成熟度较低,未达到烃源岩生烃门限,因此不具备页岩气的勘探潜力。同时,通过对泥页岩进行含油率的测定和岩石热解分析,发现其含油率及生油潜量达不到油页岩的标准,因此研究区延安组也不具备油页岩的勘探潜力。     

Role of activated carbon on micropollutans degradation by ionizing radiation

The objective of this study was to analyze the influence of the presence of activated carbon on the degradation of the triiodinated contrast medium diatrizoate (DTZ) by the simultaneous use of gamma radiation and activated carbon. Four commercial activated carbons (Ceca, Witco, Sorbo, and Merck) with different textural and chemical characteristics were used for this purpose. The percentage DTZ removal obtained was considerably higher with the gamma radiation/activated carbon (GM/AC) system than with radiolysis in the absence of activated carbon, and it depended on the specific activated carbon employed. First, we optimized the amount of activated carbon required to maximize the amount of DTZ removed by the GM/AC system (0.06 g). The degradation constants were higher with the GM/AC system than with radiolysis alone, evidencing a synergic effect that favors pollutant removal. This synergic effect is independent of the textural but not the chemical characteristics of the activated carbon, observing a higher synergic activity for carbons with a higher surface content of oxygen, specifically quinone groups. We also highlight that the synergic effect of the activated carbon requires adsorbent–adsorbate electrostatic interaction and is absent when this interaction is hindered.     

Effect of Constant‐Rate Reduction on the Performance of a Ternary Cu/ZnO/Al2O3 Catalyst in Methanol Synthesis

A multi‐functional flow set‐up was developed for the rate‐ and temperature‐controlled reduction of copper catalysts, their application in high‐pressure methanol synthesis and the determination of the copper surface area by N₂O frontal chromatography. The influence of constant‐rate reduction on the catalytic properties of a ternary Cu/ZnO/Al₂O₃ catalyst was investigated. The temperature during the constant‐rate reduction was found to decrease, indicating autocatalytic kinetics, but no significant catalytic effect of the milder reduction conditions was observed compared with a slow linear heating ramp.     

大孔树脂对桃金娘叶总黄酮的静态吸附性能研究

分别研究了X-5和AB-8两种不同树脂对桃金娘叶总黄酮的静态吸附和解吸性能。结果表明,X-5树脂具有较好的吸附和解吸参数,是一种分离纯化桃金娘叶总黄酮较好的树脂,其最佳条件为温度为25℃、吸附时间为6 h、黄酮原液pH=6时,吸附率最大,为66.07%,此时选用95%的乙醇做解吸剂,于30℃温度下解吸12 h时,解吸效果最佳。     

吴起地区吴410井区长6储层特征研究

通过储层砂体岩芯观察、铸体薄片鉴定、粘土矿物X衍射分析、扫描电镜,压汞测定等方法,得出吴起地区吴410井区长6储层岩石学特征,物性特征以及储集特征,分别为长6储属于低孔低渗储层;储层岩性以长石砂岩、岩屑长石砂岩为主,胶结物主要为绿泥石,伊利石,铁方解石等;孔隙空间主要有粒间孔,长石溶孔和微孔隙三大类。通过对储层特征研究,可为下一步勘探开发提供地址依据。     

志丹地区长6河道体系分析及油藏富集规律

志丹地区是陕北斜坡带主要的油气富集地区之一。通过对长6油层组的研究发现河道砂体沉积是影响储层的主要因素。因此本文针对长6河道体系的分析以及油藏富集规律的研究,对河道砂体的展布、油藏的富集有了一定的认识,有利于指导下一步井位部署和有利目标优选工作。