Xem 1-20 trên 37 kết quả Gas separations
  • This book is dedicated to the rapidly grown field of microporous ceramic membranes with separating layers of pore diameter less than 2 nm. In spite of the recent rapid growth of the research effort directed towards the development of microporous ceramic membranes the field is still considered to be at its infancy and exhibits a significant future growth potential.

    pdf525p nhulan0908 30-09-2012 21 6   Download

  • This book is intended to present for the first time experimental methods to measure equilibria states of pure and mixed gases being adsorbed on the surface of solid materials. It has been written for engineers and scientists from industry and academia who are interested in adsorption based gas separation processes and/or in using gas adsorption for characterization of the porosity of solid materials

    pdf436p tuyetmuadong2013 06-04-2013 23 8   Download

  • Turboexpanders and Process Applications offers readers complete application criteria, functional parameters, and selection guidelines. This book is intended for the widest possible spectrum of engineering functions, including technical support, maintenance, operating, and managerial personnel in process plants, refineries, air liquefaction, natural gas separation, geothermal mining, and design contracting.

    pdf524p transang5 23-11-2012 38 7   Download

  • This is the smallest unit of the machine and complete, its characteristics can not be separated out and meet all technical requirements. (For example, gears, shafts bike). Can put all the machine parts into two groups: - Detailed machine for general use (for example, bolts, gears; axis) is the machine parts used in many different machines. Details specific use machines have been used only in a certain number. (eg, crankshaft, valves, cam ...)

    pdf367p tuoitrelyson 02-10-2010 84 27   Download

  • The aim of this book is to provide a practical engineering description of techniques and processes in widespread use and, where feasible, provide sufficient design and operating data to permit evaluation of the processes for specific applications. Limited data on processes that were once, but are no longer commercially important, are also presented to pvide an histor - ical perspective. Subject matter is generally limited to the removal from gas streams of gas - phase impurities that are present in relatively minor proportions.

    pdf1414p c0ngth4nhpk 18-05-2014 20 12   Download

  • Chromatography was gained more importance initially after discovered in the preparative chromatography using large amount of the sample for the separation all components properly and collect each in their pure forms. Recently analytical chromatography found many application areas. The purpose of preparative Analytical chromatography is done normally with smaller amounts of material and is for measuring the relative proportions of analytes in a mixture after discovered some detectors which need very low amount of the analyte and have proper detection limits....

    pdf248p orchid_1 25-09-2012 27 10   Download

  •  IUPAC Definition: chromatography is a physical method of separation in which the components to be separated are distributed between two phases, one of which is stationary while the other moves in a definite direction  Stationary phase (SP): common name for the column packing material in any type of chromatography  Mobile phase (MP): liquid media that continuously flows through the column and carries the analytes  Analyte: the chemical species being investigated (detected and quantitatively measured) by an analytical method...

    pdf19p qdung92ct 03-07-2012 37 9   Download

  • Tham khảo sách 'filtration & separation technology', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf48p loixinloi 08-05-2013 27 6   Download

  • Natural gas has traditionally been used as a feedstock for the chemical industry, and as a fuel for process and space heating. Recent advances in exploration, drilling techniques and hydraulic fracturing have made it possible for natural gas to become available in abundance (as of 2012). As natural gas displaces traditional petroleum use in various sectors, a certain amount of disruption is likely.

    pdf316p kimngan_1 05-11-2012 33 4   Download

  • The dual fluidized beds experimental set up is made of transparent perspex material. The system consists of a fast bed riser, a cyclone to separate the solids, a down comer with a L- valve, a bubbling fluidized bed and a return pipe with another L-valve. The system is shown schematically in Fig 1. The solids after passing through the fast bed riser gets separated in the cyclone, descend downwards through the down comer and enter the bubbling bed reactor through the L-valve. A part of bed materials in the bubbling bed system are then transferred back into the...

    pdf132p contentnew 12-04-2012 72 25   Download

  • AT THE transition to the new millennium the future of nuclear energy looks brighter. Nuclear power plants worldwide have operated safely. Applications for extension of reactor operating licenses in the U.S. are in place and construction is continuing abroad. Uses of isotopes and radiation in applications to medicine, research, and industry continue to assure human benefit. Research and development are active in the areas of controlled fusion, accelerator uses, isotope separation, space exploration, and excess weapons material disposition.

    pdf514p thix1minh 16-10-2012 44 17   Download

  • Chemical reactions (abiotic reactions) are “classical” chemical reactions that are not mediated by bacteria. They may include reaction processes such as precipitation, hydrolysis, complexation, elimination, substitution etc. that transform chemicals to other chemicals and potentially alter their phase/state (solid, liquid, gas, dissolved). Precipitation is the removal of ions from solution by the formation of insoluble compounds, i.e. a solid-phase precipitate. Hydrolysis is a process of chemical reaction by the addition of water.

    pdf208p cao_can 29-12-2012 34 13   Download

  • ● Adsorption chromatography • The stationary phase is an adsorbent (like silica gel or any other silica-based packing) • The separation is based on repeated adsorption-desorption steps. ● Normal-phase chromatography • The stationary bed is strongly polar in nature (e.g., silica gel), and the mobile phase is nonpolar (such as n-hexane or tetrahydrofuran). • Polar samples are retained on the polar surface of the column packing longer than less polar materials.

    pdf28p qdung92ct 03-07-2012 41 9   Download

  • A compound is different than a simple mixture of elements. If hydrogen and oxygen are mixed, the result is a colorless, odorless gas, just like either element is a gas separately. A spark, however, will cause the molecules to join together; this will liberate energy in the form of light and heat. Under the right conditions, there will be a violent explosion, because the two elements join eagerly. Water is chemically illustrated in Fig.

    pdf20p balanghuyen 13-01-2010 55 7   Download

  • Mass Spectrometry (a.k.a. MS or mass spec) – a method of separating and analyzing ions by their mass-to-charge ratio MS does not involve a specific region of the electromagnetic spectrum (because it is not directly interested in the energies of emitted photons, electronic or vibrational transitions, nuclear spin transitions, etc…)

    pdf33p qdung92ct 03-07-2012 29 7   Download

  • Owners of high cash businesses used multiple cash equivalents from different banks and money services businesses to pay into policies and annuities. In one case, an insurer reported the owner of a landscaping business who paid the premiums on a universal life insurance policy with multiple money orders of no more than $1,000 each, some purchased on the same day at different post offices, or on separate visits to the same post office, creating the appearance of structuring.

    pdf24p thangbienthai 23-11-2012 18 6   Download

  • Flow measurement is a basic tool in industry, engineering and research. The existing applications reveal the evolution and development of new methods and devices through the years. Some of the latest emerging technologies, such as microelectronics and nanotechnology, have put forward new challenges in the flow measurement and are treated at the beginning of this book. This book comprises 8 chapters divided into 4 sections, starting with “microflows”, followed by the “biphasic” and “gas flow”.

    pdf194p qsczaxewd 22-09-2012 15 4   Download

  • Ionic methods of separation have been used since the industrial revolution in Europe to reduce hardness of water. In the mid-nineteenth century, British researchers treated various clays with ammonium sulfate or carbonate in solution to release calcium. In the early twentieth century, zeolite columns were used to remove interfering calcium and magnesium ions from solutions to permit determination of sulfate. Ionic separation procedures were used in the Manhattan project to purify and concentrate radioactive materials needed to make atom bombs.

    pdf455p bachduong1311 12-12-2012 28 4   Download

  • There are other interesting parallels: In both countries, changes in investment ratios seem not to have been triggered by changes in household savings ratios, but have shown separate trends: In Germany, the investment-to-GDP ratio rose from 1951 to 1954 from 20 to 25 per cent, and hovered between 23 and 25 per cent until the late 1960s. The household savings rate, on the other hand, started from a very low level of just 4 per cent of disposable income in 1950 (which even translates into a lower share of GDP as disposable income is only a share of GDP) a...

    pdf86p enterroi 01-02-2013 15 4   Download

  • ADC's ComProtect® 2/1 CP TP280A1 GDT (Gas Discharge Tube) single-pair protection module, when combined with ADC's LSAPLUS ® Series 2 connectivity, is a high-density system that increases the pair capacity that can be supported in OSP cabinets. The ComProtect GDT system provides up to a 50% space savings over traditional systems utilizing separate cross-connect and protection fields. By reducing the number of connection points, the ComProtect GDT system improves technician productivity and reduces failure rates.

    pdf2p mylinh 13-08-2009 77 3   Download

Đồng bộ tài khoản