查询词典 methane

The partial oxidation of methane by the H5PV2Mo10O40 catalyst in oleum was studied. The effects of catalyst amount, reaction temperature, reaction time, and sulfur trioxide concentration on the methane conversion and methanol yield were investigated.

以H5PV2Mo10O40 为催化剂，在发烟硫酸中进行了甲烷液相部分氧化，考察了催化剂用量、反应温度、反应时间和发烟硫酸浓度等工艺条件对反应收率的影响。

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly due to the formation of blackcoal and highlymetamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly, due to the formation of blackcoal and highly-metamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

The mathematical model of coal-bed methane seepage is established considering slipped effect, giving the weak form of the differential equation based on the principle of virtual displacement, hereby writing FEPG program. Using FEPG system's all the source program of the finite element which considers the mathematical model of coal-bed methane seepage of slip effect the numerical solution is sought.

建立考虑滑脱效应的煤层气渗流数学模型，给出了基于虚位移原理的微分方程的弱形式，据此编写了FEPG程序，利用FEPG系统生成了考虑滑脱效应的煤层气渗流数学模型有限元问题的全部Fortran源程序，并进行了数值求解。

It is reported that based on residents' reports, Chaoyang District organised experts to reconnoitre and monitor the area where the Gaoantun landfill's stench was a problem, discovering that the stench came from three main areas: One was that the landfill had been operating from the end of 2002 until now, and has currently entered the period of vigorous methane production and the amount of methane produced has rapidly increased.

据介绍，根据居民反映，朝阳区组织专家对高安屯垃圾卫生填埋场的臭味问题，进行了现场勘察和监测，发现臭味源主要来于三个方面：一是该垃圾填埋场自2002年底开始运转到现在，目前已经到了填埋垃圾产生沼气的旺盛期，沼气产量急剧增加。

The experimental simulated the principle of operation of hydraulic pressure methane tank, proceeded from effective demand, through the medium of self-command methane fermentation plant, we looked into know clearly that ...

本试验模拟农村水压式沼气池的工作原理，通过自制沼气发酵装置，从实际需要出发，研究了换料时间间隔、接种物的种类、接种物的接种量这3个影响沼气发酵的重要因素对产气效果的影响。

The experimental simulated the principle of operation of hydraulic pressure methane tank, proceeded from effective demand, through the medium of self-command methane fermentation plant, we looked into know clearly that these three factors including period of employing materials, the kind of inocula, inoculum impacted to biogas production.

本试验模拟农村水压式沼气池的工作原理，通过自制沼气发酵装置，从实际需要出发，研究了换料时间间隔、接种物的种类、接种物的接种量这3个影响沼气发酵的重要因素对产气效果的影响。

Though the result was not so good, a general understanding of the problems lying in the manufacture process of the device was gotten.We found the symmetry was destroyed or decreased in the crystal structure of symmetrical star-shaped molecules, such as tetra(4-cyanophenoxymethyl-methane, tetra(N-pyrrolemethyl)methane, and a center of charility was self-formed.

本文发现，原本高度对称的星状分子，在晶体结构中，分子对称性破坏或降低，表现为手性分子；以四(4-氰基苯氧基甲基)甲烷为例，从分子间氢键作用的角度，解释了该现象形成的原因。

Through the study of the geological characteristics of coalbed methane in Wangying-liujia district, The mechanical properties of syncline and its controlling of coalbed methane is analyzed.

通过研究王营―刘家区煤层气地质特征和分析向斜构造的力学特性及其对煤层气的控制作用，认为向斜构造是该区煤层气的主控因素。

In order to realize efficient conversion of methane, thermal diffusion column reactor was used to dehydrogenative coupling of methane.

为了实现甲烷的有效转化，使用热扩散管反应器进行了甲烷的脱氢偶联反应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐