Gas

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Questions related to Gas

Unautomated vehicle gas emission effect on environment pollution?

Dear researcher, do you have concept how to check or method used to check gas emission effect on environment due to vehicle age related factors.

28 January 2020 3,456 4 View

Without using Gas Chromatography mas Spectroscopy, can we measure the amount of a gas produced from a sample?

My work is on photocatalyst water splitting. After splitting water ,i want to measure the amount of Hydrogen gas produced . So is it possible to measure the amount of Hydrogen gas produced without...

25 January 2020 5,067 1 View

How can I measure concentration of a gas (for example ammonia gas, H2S or Carbon monoxide) in air?

I need to measure gas concentration in a system before and after filtering. But I don't have access to some of these gases sensors and I don't have enough information about available analysis...

24 January 2020 3,610 3 View

How to wash syringe used to inject gas sample into GC-FID?

I am measuring 1,4-dioxane concentration using head-space GC-FID. I would like to know the best way to wash the syringe after injecting 1st gas sample to avoid the possible contamination during...

22 January 2020 3,640 2 View

What is the computational complexity of PSO, GA, DE, VNS and EDA?

Optimization problems could be NP-Hard problems, but optimization algorithms could solve these problems. The purpose of this question is to know what is the best algorithm taking into account the...

21 January 2020 6,619 29 View

Collaboration in review paper"The potential use of biogas to meet electrical and thermal loads of building"?

Dear colleagues I want to write a review paper entitled" The potential use of biogas to meet electrical and thermal loads of building" please anyone wants distribution to inform me.to...

21 January 2020 6,940 1 View

Which zeolite can give more than 90% Dodecane and gas conversion at reaction temperature 500C or less?

Intro: I am new to the zeolite field. I have worked on Y zeolite and after ion exchange, calcination, adding Nickle; it gave 16% for Dodecane conversion and 48% for gas conversion at temperature...

16 January 2020 1,940 1 View

Which software should a researcher working on continuous gas lift optimization use? PROSPER (PETEX) or PIPESIM (Schlumberger)?

I want to know which of the two softwares will be handy considering working on continuous gas lift optimization.

15 January 2020 9,019 2 View

Is carrier gas peak appears in GC-TCD chromatogram ?

For e.g. while analyzing CO2 and H2 mixture using Argon as a carrier gas, will peak for Argon also appear in the chromatogram ?

09 January 2020 1,776 7 View

What Nitrogen Gas purity should be used for laboratory pyrolysis of Biomass ?

Hello I want to pyrolyse some biomass to obtain biochar using Nitrogen gas but am not sure as to the purity of the gas to use for my laboratory scale pyrolysis. The biochar obtained will be used...

03 January 2020 7,958 6 View

Does JT expansion affect waxy gas condensate pipelines and risers?

I would like to know if Joule-Thomson effects in gas condensates have any effects on wax deposition in pipelines and risers producing and transporting them? If yes, what are these effects and how...

02 January 2020 9,259 6 View

What is the source of the gas release and the passivation?

I work in the field of brass corrosion (Cooper and Zinc) in a 3 ′ / • NaCl medium. At the anodic part of the polarization curve, we notice a gas evolution on the counter-electrode (platinum) and a...

01 January 2020 9,208 4 View

What are responsibles of the release of gas and the passivation?

01 January 2020 3,136 0 View

Why do we choose GA instead of PSO?

The choice of such an algorithm for an optimization problem is a serious problem. In my research, I have made the choice of using GA to optimize the performances of a flight controller as...

29 December 2019 4,429 1 View

What happens to a detector in an XRF spectrometer if the P10 gas in the detector runs out completely?

I work for a metal alloy company and the P10 cover gas in the detector of our XRF spectrometer was out in the detector, quite possibly for quite a long time. What happens to the detector over...

28 December 2019 9,120 2 View

Why the activity of LTL zeolite is so low after ion-exchange?

I use LTL-type zeolite in my research for dehydrogenation. Comparing with other types of zeolites, the result of platinum incorporated LTL-type zeolite was so low. The incorporation of platinum...

27 December 2019 7,137 3 View

Is there any evidence of Sulfur Fluoride compounds in volcanic emissions?

The demonstration of the existence of Silicon TetraFluoride in volcanic emissions and the importance of monitoring it, and its ratio to Hydrogen Fluoride gas, in prediction of eruptions is...

18 December 2019 660 2 View

Can we evaluate the performance of Genetic Algorithm (GA) using Mathematical Analysis?

I would like to obtain the closed-form solution of GA for any kind of optimization problem. In short, I would love to compare the analytical and simulation-based results. Is it possible?

17 December 2019 5,794 2 View

Which types of risks are the most important for the gas companies?

There are many categories of risks as what are: operational, financial, reputation, strategic, juridical, subjective, risk of the information systems etc. Some of them have the extremely high...

16 December 2019 3,290 2 View

In a gas mixture,if I want to model and simulate an adsorption isotherm (Langmuir, Toth or any other), I should use the total pressure or the partial?

In a gas mixture, if I want to model and simulate an adsorption isotherm (Langmuir, Toth or any other) of one component, I should use the total pressure or the partial pressure (by Dalton's law =...

14 December 2019 9,218 8 View

Currently top 5 research problems in number theory?

Dear Researchers, Kindly let me know about 5 top most research problems in number theory which are concerning to Double series and / or combinatorics

11 December 2019 3,767 4 View

Air contamination / ingress in NETZSCH Jupiter 449 F5 ?

Dear colleagues, Does anyone of you experienced or detected a problem of contamination of the TGA-DSC NETZSCH Jupiter 449 F5 by external air? We are using Ar as purge and protective gas. We have...

05 December 2019 7,598 1 View

Working on water quality and pollution assessment of some dams?

Hello everyone…Actually, I am working on water quality and pollution assessment of some Algerian dams. I have some analyzed parameters namely: pH, Dry residue, Dissolved O2 (%), NO2, NO3, NH4,...

04 December 2019 1,721 2 View

How do I remove sulfur compounds from a stream of CO2 product gas?

I am looking for a technical solution to remove sulfur compounds from a CO2 product gas stream at near-atmospheric conditions (p=~0.5 bar(g) and T=~10 to 20°C). The gas stream contains traces (

25 November 2019 396 1 View

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