NH3对Cu/AC脱硫剂再生行为的研究

对Cu/AC脱硫剂在NH3气氛中的再生情况进行了研究，结果表明：Cu/AC经NH3再生后脱硫活性可得到完全恢复，其原因是NH3在脱硫剂表面的吸附使得脱硫剂表面的碱性增强，二次脱硫活性增高。     

SW型脱硫剂的研制及应用

研究了采用硫酸烧渣制备SW型脱硫剂及用以进行沼气、煤气脱硫。结果表明:以硫酸烧渣制成的脱硫剂对沼气、煤气中H_2S的脱除率可达99％以上,吸附工作硫容率可达30％,同时探讨了影响脱硫率的因素和再生方法。     

脱硫活性碳纤维改性及再生技术研究进展

工业脱硫成本较高、脱硫剂难再生和脱硫产物难利用,采用吸附性能和再生性能优越的活性炭 纤维作为脱硫剂极具前景。 首先阐述了活性碳纤维吸附—氧化—水合整个脱硫过程,分析了表面官能团对 ACF 吸附催化效率的影响。 总结出在吸附和氧化前,基于碱性含氧官能团及含氮官能团的调控对 ACF 进行 改性可显著提升其脱硫率。 而水合生成硫酸后,对 ACF 再生可将孔内污染物洗脱或分解,还原活性位,实现 循环脱硫。 然后对活性碳纤维改性及再生方法进行归纳:改性方法主要基于 ACF 物理结构和表面官能团种 类、数量的调整,瓶颈在于难以分离孔隙和官能团的耦合影响;再生方法主要靠外部供能,使吸附质分子和产 物脱附或直接分解,但碳损耗大、能耗高、产物利用率低。 最后对未来脱硫活性碳纤维改性及再生技术研究 方向提出建议,以供制备高性能脱硫剂参考。     

复合金属氧化物脱硫剂寿命测试

选用铁系氧化物及其它金属氧化物制成球型脱硫剂。在优选条件下，铁氧化物与烟气中ＳＯ２反应，在微孔中生成硫酸盐。通过脱硫剂的多次吸附──再生测试其寿命。测试结果：总运行时数１６３３小时，运行周期２３，平均脱硫率９０．１％，平均一次硫容２２．４ＳＯ２ｇ／１００ｇ脱硫剂，累计硫容５７６．８ＳＯ２ｇ／１００ｇ脱硫剂。     

用于炼厂恶臭气体的液体脱硫剂研制

以甲基二乙醇胺为主剂,与适当的活化剂、促进剂等进行复配,筛选出了一种用于去除炼厂恶臭气体的安全、高效液体脱硫剂TL-MHC.考察了相关工艺参数如温度、气液比和恶臭气体中H2S含量对脱硫剂TL-MHC脱硫效果的影响,对脱硫剂TL-MHC的脱硫-再生机理进行了描述.实验结果表明:脱硫剂TL-MHC具有脱硫率高、再生利用率高和腐蚀性低等特点.     

沼气脱硫器被烧坏的原因及安全使用方法

沼气脱硫器被烧坏的原因，是在使用沼气时，直接经脱硫器排气试火或因大量空气进入脱硫器内，与脱硫剂发生还原反应，产生大量热量所致。安全使用方法是：不能直接经脱硫器排气；使用灶具时严禁出料；出料时要关闭开关；需要重新密封活动盖时，应同时进行脱硫剂再生或再换。     

甲醇合成中硫和硫化物精脱除技术

介绍了几种干法脱硫剂的工作机理及应用条件,阐述了有机硫的水解和脱除机理。从脱硫剂的性质上看,氧化铁和锰矿脱硫剂硫容大,但脱硫精度低;氧化锌脱硫剂脱硫精度高,但硫容小、不易再生,且使用成本高;活性炭脱硫剂脱硫精度高、硫容大,应在有氧气氛中使用。对于有机硫而言,加氢转化和水解都能满足脱除要求。     

铅膏碳酸化脱硫转化工艺研究

分别以碳酸钠、碳酸氢铵作脱硫转化剂,采用正交试验设计,研究了废铅蓄电池湿法再生时铅膏的碳酸化脱硫转化工艺。研究表明,碳酸钠相对碳酸氢铵脱硫转化效率更高。碳酸钠作脱硫剂时,各因素对脱硫率的影响程度顺序为：转化剂浓度〉矿浆浓度〉反应时间〉反应温度;碳酸氢铵作脱硫剂时,各因素对脱硫率的影响程度顺序为：矿浆浓度〉转化剂浓度〉反应时间〉反应温度。在转化剂浓度1．79mol／L,反应温度80℃,反应时间60min,矿浆浓度10％的相同脱硫转化条件下,碳酸钠的脱硫转化率可达99．99％,碳酸氢铵的脱硫转化率达99．27％。     

ZnO型复合脱硫剂的制备研究

用共沉淀法制备纳米ZnO型复合金属氧化物脱硫剂，此脱硫剂在中温、无氧条件下脱硫，硫容可达32．5％．同时，进行了锌、铜、锰氧化物的一元及二元组合的脱硫反应．实验证明：在相同的反应条件下，同时掺杂CuO和MnO2的ZnO脱硫剂的脱硫能力最佳，且降低了单——ZnO脱硫剂的硫化温度，少量的La2O3和CeO2作用于脱硫剂中，增加了脱硫剂的反应活性，提高了脱硫能力．并采用了DTA和XRD技术分析金属氧化物分解温度及脱硫剂组成结构。     

Fe－EDTA系统脱硫方法研究

研究了Ｆｅ－ＥＤＴＡ系统脱硫的基本原理和工艺条件，研究了浓度、温度、ｐＨ值、时间和稳定剂加量等因素对脱硫反应的影响及脱硫剂再生的基本规律，用实验方法确定了适宜的脱硫反应条件，研究表明，改进后的脱硫工艺克服了铁氯系统脱硫的缺点，提高了对Ｈ２Ｓ的吸收效率，再生反应时间短，耗能少。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.