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针对海上和新疆油气藏压力高的特点,设计制造了一套特高压PVT最高工作压力为130MPa,最高工作温度为200℃,测定了3个气样,50~140℃,20~100MPa范围内的PVTZ值,共取得346个数据点,其中对比压力P,大于15的数据为178个。 相似文献
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比较不同处理方式对污泥脱水性能及蛋白质提取效率的影响。通过热压力、蛋白酶、热压力-蛋白酶3种方式对机械脱水污泥进行处理。结果表明,在65℃、75℃热压力(3MPa、6MPa、9MPa)下,与原污泥相比蛋白质提取量平均增加41.74%、65.64%;热压力处理后污泥脱水性改善不明显。胃蛋白酶添加量为0.04g/g TSS时,蛋白质提取量最高为108.52mg/g TSS,污泥毛细吸水时间(CST)为最小值154s。65℃热压力(3MPa、6MPa、9MPa)-胃蛋白酶、中性蛋白酶处理后,蛋白质提取量与热压力污泥相比分别提高了38.5%和35.8%;75℃、85℃热压力(3MPa、6MPa、9MPa)-木瓜蛋白质酶处理后,蛋白质提取量均达到220mg/g TSS以上;热压力-胃蛋白酶在75℃,6MPa脱水效果最好,毛细吸水时间为170s。 相似文献
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介绍了一个普遍化的Tait型高压液体的状态方程,并将它应用于高压下液氨的pVT数据的计算。对照2组文献数据(一组温度253~313K,最高压力180MPa;另一组温度310~350K,最高压力110MPa),计算结果表明,平均绝对偏差分别为0.20%和0.94%。本方程适合用来描述液氨的pVT行为。 相似文献
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本实验采用Raney—Ni作为催化剂,研究了由对羟基苯腈合成对羟基苯甲脒的工艺条件。通过实验考察了时间(5h~11h)、压力(0.3MPa~0.8MPa)、温度(50℃~85℃)等因素对产率的影响。得到了适宜的工艺条件为:反应压力0.7MPa、反应时间9h、搅拌速率600r·min^-1、反应温度70℃。 相似文献
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烯烃含量是考察汽油优劣的重要指标之一。实验采用三相浆态床反应器进行烯烃加氢反应,选取1-辛烯为烯烃代表物。结果表明,1-辛烯转化率随着反应温度、压力的升高而增大。1-辛烯在40~80℃,0.5~1.5 MPa的条件下,其转化率最高可达99%,90#汽油与1-辛烯混合物在80~100℃,2.0~3.0 MPa的条件下,1-辛烯转化率最高为35%,采用马夸特和改进遗传算法,根据实验数据进行参数拟合,得到汽油中1-辛烯加氢反应的动力学模型。1-辛烯和氢气的反应级数分别为0.99和1.412,反应活化能为59 255 J/mol-1。 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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D. G. Gordeev L. F. Gudarenko M. V. Zhernokletov V. G. Kudel’kin M. A. Mochalov 《Combustion, Explosion, and Shock Waves》2008,44(2):177-189
A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation
of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from
the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO2) of density 0.08 g/cm3.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008. 相似文献
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The objective of the study was to explore the effect of the degree of deacetylation (DD) of the chitosan used on the degradation rate and rate constant during ultrasonic degradation. Chitin was extracted from red shrimp process waste. Four different DD chitosans were prepared from chitin by alkali deacetylation. Those chitosans were degraded by ultrasonic radiation to different molecular weights. Changes of the molecular weight were determined by light scattering, and data of molecular weight changes were used to calculate the degradation rate and rate constant. The results were as follows: The molecular weight of chitosans decreased with an increasing ultrasonication time. The curves of the molecular weight versus the ultrasonication time were broken at 1‐h treatment. The degradation rate and rate constant of sonolysis decreased with an increasing ultrasonication time. This may be because the chances of being attacked by the cavitation energy increased with an increasing molecular weight species and may be because smaller molecular weight species have shorter relaxation times and, thus, can alleviate the sonication stress easier. However, the degradation rate and rate constant of sonolysis increased with an increasing DD of the chitosan used. This may be because the flexibilitier molecules of higher DD chitosans are more susceptible to the shear force of elongation flow generated by the cavitation field or due to the bond energy difference of acetamido and β‐1,4‐glucoside linkage or hydrogen bonds. Breakage of the β‐1,4‐glucoside linkage will result in lower molecular weight and an increasing reaction rate and rate constant. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3526–3531, 2003 相似文献
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Jorge Marcelo Romero Soledad Bustillo Hugo Enrique Ramirez Maisuls Nelly Lidia Jorge Manuel Eduardo Gómez Vara Eduardo Alberto Castro Alicia H. Jubert 《International journal of molecular sciences》2007,8(7):688-694
A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out. 相似文献
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塔设备改造选型的分析 总被引:2,自引:0,他引:2
就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后,着重介绍一种新型塔板(导向梯形浮阀塔板)和一种新型填料(波环填料——乾隆帕克)。 相似文献