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LDetek APPLICATIONS

APPLICATIONS/ Chromatograms . . . < see ALL in FlipPAGE Catalog . . .  more APPS 2015

MultiDetek2 APP Chart

LD-Enviro

ENVIRONMENT

LD12-8 ANALYSIS OF SULFURS WITH THE PLASMADETEK

Application Note LD12-8
(1,1 Mb)The analysis of sulfurs can now be performed using the PlasmaDetek technology. With its sulfurs selective mode, the analysis of low ppb sulfurs can be easily quantified.

 LD12-1 GREENHOUSE ANALYSIS WITH THE PLASMADETEK

Application Note LD12-1
807 Kb)The popularity to measure greenhouse gases (CH4, CO2 and N2O) has increased considerably in the last years with the global warming concerns. Chromatography is the well known technique to measure them and different detectors are used to achieve this task. This application note will explain how we can effectively do it with a simple gas chromatograph configuration involving the PlasmaDetek detecto

LD-Indusrial

INDUSTRIAL GAS

LD14-01 LIGHT HYDROCARBONS MEASUREMENT WITH THE *PLASMADETEK-E SYSTEM WITH NITROGEN CARRIER GAS AND THE MULTIDETEK-2.

Application Note LD14-0
1 847 Kb
Hydrocarbons are ones of the most important impurities measured in the industry. Whether it is for safety, quality control, special gases or any other needs, those compounds are everywhere.

The techniques used to measure those compounds have been the same for quite some years. The FID (Flame Ionization Detector) is surely the most widely used in the industry. The selectivity for hydrocarbon (HC) gives the simplicity desired for all gas chromatograph (GC) users. However the need of air, but mostly hydrogen as fuel is the drawback of this technology. Many plants and laboratories would like to get rid of the hydrogen as potential explosive gas. All the safety feature (valves, extra lines, procedures, etc) are required an brings extra cost and manpower.

LD13-02 - MEASUREMENT OF NITROGEN IN A MIXTURE OF ARGON-OXYGEN

Application Note LD13-02
. pdf (2,7 Mb)
The measurement online of nitrogen in UHP argon is widely used and the LD8000 is now a reference in such measurement. However when measuring crude argon with a few % of oxygen, the conventional online instruments are not suitable anymore.

LD13-01 - ANALYSIS OF UHP HYDROGEN PRODUCTION USING PLASMADETEK-2 & MICRO GC MULTIDETEK-2

Application Note LD13-01
. pdf (1.1 Mb)
The high purity hydrogen production demand is rising quickly and the need of measuring low ppb trace in a quick analysis run is then required. Most of the GC technologies available on the market use the same methods for years which required quite complex systems. Those systems require the use of different detectors to cover the application and a complex chromatograph configuration what make the price of such system increasing. The complexity of the chromatograph operations, the long analysis time and the limitations to achieve low ppb measurement are often faced.

LD8000 TRACE NITROGEN IN ARGON OR HELIUM ANALYZER - DESIGN REPORT

Design Report (2,6 Mb)The need of trace nitrogen in argon or helium analysis in the industry is not something new. Many instruments have been and still are on the market to achieve such measurement for different type of applications. The most popular use is without any doubt in air separation industry for the production of argon.

The demand and the production of gas more and more pure require good analytical instrumentations. It is even more the case for the measurement of nitrogen. Small leakage, dead volume, change in temperature, bad accuracy, etc can all cause big headaches.

In this document, information about the design of the LDetek LD8000 trace nitrogen in argon or helium analyzer will be described to explain how we achieve such good performance. Those results are also described to show that the LD8000 is now the solution for any applications that require such measurement. 

LD12-9 HYDROCARBONS MEASUREMENT FOR OXYGEN PRODUCTION USING PLASMADETEK & MULTIDETEK-2

Application Note LD12-9
  (2,8 Mb)
Oxygen is one of the basic chemical elements. In its most common form, oxygen is a colorless gas found in air. It is one of the life-sustaining elements on Earth and is needed by all animals. Oxygen is also used in many industrial, commercial, medical, and scientific applications. It is used in blast furnaces to make steel, and is an important component in the production of many synthetic chemicals, including ammonia, alcohols, and various plastics. Oxygen and acetylene are combusted together to provide the very high temperatures needed for welding and metal cutting.

The most common commercial method for producing oxygen is the separation of air using either a cryogenic distillation process or a vacuum swing adsorption process. Nitrogen and argon are also produced by separating them from air. The figure 1 represents a common cryogenic distillation process for producing oxygen.

LD12-7 ANALYSIS OF NEON-HYDROGEN-ARGON-KRYPTON-NITROGEN WITH THE PLASMADETEK & THE HSR-ETEK COLUMN

Application Note LD12-7
(819 Kb)
The analysis of Neon, Hydrogen, Argon, Krypton and Nitrogen by chromatography has always been problematic. The bad separation and the poor sensitivity for the analysis of these impurities are the reasons that make it complicated to realize. Even with the use of capillary columns, cryogenic system and/or hydrogen trapping system, the analysis of low ppb of these impurities cannot be performed in one run. Furthermore, the detectors available in the industry have some sensitivity limitation. It is then very difficult to measure low ppb for the mentioned impurities especially for Neon with the existing technologies

LD12-6 INCREASING ARGON PRODUCTION WITH THE MULTIDETEK

Application Note LD12-6
(1 Mb)
Air is composed of nitrogen (78.09%), oxygen (20.94%) and argon (0.934%). To produce pure argon, distillation process separates the air constituent by the use of distillation columns. Such installation on an air separation plant is used for many years.

This separation process is based on vapor pressure of each component. Argon is taken from a low pressure column and introduced in a second column called crude argon. Since argon vapor pressure is close to oxygen, and also between nitrogen and oxygen, its extraction is between those two other components in the low pressure column before being introduced in the second column.   

LD12-4 ANALYSIS OF NITROGEN IN HYDROGEN AND OXYGEN BULK WITH THE PLASMADETEK

Application Note LD12-4
  1,4 Mb)
Measuring nitrogen as impurity in low concentration is not an easy task. It is mostly the case in hydrogen and oxygen background. Even if the chromatography system is quite efficient, the remaining bulk gas could influence the reading of nitrogen.

The PlasmaDetek, configured to be selective on nitrogen, brings very good result for this measurement. This document will demonstrate how this technology can help to make better analysis on nitrogen with any gas chromatograph system.

LD12-3 ANALYSIS OF ARGON IN PURE OXYGEN WITH THE PLASMADETEK AND ARGOTEK

Application Note LD12-3
(565 Kb)
The complexity of measuring argon as impurity in chromatography comes from the fact that typical columns on the market do not separate argon and oxygen. Both elute at the same time making the analysis difficult in low concentration. There are typical techniques for this measurement:

Using an oxygen trap which involves regeneration procedure with H2 supply, maintenance, consumable and complex chromatography system.
Cryogenic configuration where columns need to be used in cold environment which involves complex manipulation.
Using an online oxygen analyzer in parallel and substract the oxygen from the measurement of Ar+O2. But this requires a second analyzer and it is difficult to get an accurate measurement in low concentration.
But the combination of the PlasmaDetek and the ArgoTek column is the ideal solution to measure argon in ppt to %.

LD12-2 ANALYSIS OF PERMANENT GASES AND LIGHT HYDROCARBONS WITH THE PLASMADETEK

Application Note LD12-2
(328 Kb)
The PlasmaDetek is ideal to measure permanent gases and light hydrocarbons in different matrices. Only one detector system is needed to accomplish this task. Such measurement is required in many different applications field: industrial, petrochemical, energy, environmental, etc. The sensitivity, the stability, the ease of start-up and installation make this system very attractive for any users.

LD-PetroCheml

PETROCHEMICAL

LD13-03 MEASUREMENT OF H2S AND COS IN SYNGAS WITH MULTIDETEK 2

Application Note LD13-03
.pdf  (1,5 Mb)
Singas (Synthesis gas) a fuel gas mixture, primarily composed of hydrogen, carbon monoxide and carbon dioxide,
is mainly used as intermediate in creating synthetic natural gas (SNG) or ammonia or methanol.

To be able to use a clean and environmental friendly fuel and feedstock, the sulfurs compounds must be removed.
Right analysis tool is needed to ensure that the concentration of sulfurs is kept at the minimum desired level

LD12-8 ANALYSIS OF SULFURS WITH THE PLASMADETEK

Application Note LD12-8
(1,1 Mb)
The analysis of sulfurs can now be performed using the PlasmaDetek technology. With its sulfurs selective mode, the analysis of low ppb sulfurs can be easily quantified.

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