Gas

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Would casting slurry of either wax or cement mixed with magnetite particles (0.1-0.5 mm) & congealing it in strong magnetic field retain magnetism?

While the magnetite particles are much above single-domain limit, they indeed form spike-like structure under strong magnetic field. Would not that be predominantly caused by aligning of...

31 January 2021 7,063 3 View

Hi my name is syahida. may i know the accurate concentration of lpg gas?? is it 250 ppm consider as dangerous gas in household?

hi my name is syahida. may i know the accurate concentration of lpg gas?? is it 250 ppm consider as dangerous gas in household? can you guide me to do the project of lpg gas detector system...

24 January 2021 9,570 4 View

Why would the TGA curve show weight gain?

Hello, I have several TGA curves of different compounds showing an odd weight gain/bump. The attached file is an example of some of these curves. I read oxidation can cause this if the purge gas...

22 January 2021 1,063 3 View

How can I use Non-dominated Strong Genetic algorithm(NSGA-II) for optimization?

I have a range of gas stream temperature, and I wanted to get the optimum temperature in the gas compressors.

15 January 2021 3,300 3 View

How cane capture of Cl, K , Na, in the process of biomass gasification, I want to let these elements enter the solid slag phase but not enter the gas?

I want to fixation Cl, K, Na in gasification slag, which type of catalyst can be used?

14 January 2021 2,254 2 View

Which heating methods do you recommend for establishing a poultry house (oil heater, gas heater, electric heater)?

I think a gas heater is better for the lower operating costs

04 January 2021 507 18 View

Physisorption depends on surface area of adsorbent only while chemisorption depends on surface area and surface charges or functional groups ?

Is my statement or understanding correct? Physisorption includes physical adsorption mechanism in which surface area plays important role. However for chemisorption, the mechanism involve are...

31 December 2020 4,065 5 View

How China is the biggest emitter of CO2 gas in the world?

26 December 2020 6,322 10 View

What is volume of gas sample to be injected into GC for analysis?

I'm currently working on a batch type gas phase photocatalytic reaction. For product analysis, i draw the gas samples from the reactor using a gas tight syringe and then inject directly into the...

23 December 2020 6,954 2 View

How to normalise the outlet concentration to the feed concentration for CO2/N2 mixed gas breakthrough data?

I have CO2 /N2 breakthrough data but I am finding it difficult to normalise the outlet concentration to the feed concentration. Please tell if there is any standard protocol to normalise the data .

20 December 2020 7,746 0 View

Design of a membrane system to remove CO2 from a flue gas current?

Hi all, I am trying to design a membrane system to remove the CO2 from a flue gas current, and I am having difficulties in finding information. Does anyone have any technical information,...

16 December 2020 3,833 2 View

Can anyone kindly explain a method to build a device to mix two non-reactive gases to specific ratios?

We are currently working on a project regarding the heat treatment of low-quality gemstones. We need to fill different gas mixtures into the tube furnace. Therefore we seek a method to mix two...

15 December 2020 7,273 3 View

What is the average stove efficiency for household gas stove especially in the Indian subcontinent?

In one paper, I saw it to be about 36%. But as the paper was published in 1997, shouldn't modern household gas stoves be more efficient?

15 December 2020 6,318 6 View

Is there any ingredient I an add into formula to slow down gas generation from Vitamin C?

I know Vitamin C is unstable and tends to be oxidized quickly. The problem here is I made a Vitamin C beverage at pH 4-5, and it starts to generate gas in the packaging, especially at high...

14 December 2020 6,182 1 View

What happens to a gas after compressing it for 10 years?

Will it lose a fraction of its expansion power assuming it was insulated in this system? Because I am designing an insulated gas spring. what I want to know if the gas will lose some of its...

08 December 2020 6,277 3 View

How can i investigate the interaction between gas-rock or gas water rock in phreeqc?

I want to investigate the reaction between a mineral (Calcite) and a gas phase (H2) which has been stored at a depleted gas reservoir. I try to model this by defining a solution and put H2(g) as...

26 November 2020 9,010 1 View

How many and which spin multiplicities we should choose for optimization the adsorption of O2 gas with metal complexes?

I want to optimize the interaction between the the O2 molecule and a metal nanocluster, but I need to know which multiplicities I should choose?

26 November 2020 878 2 View

Does the electrolyte need to be saturated with hydrogen for measuring the hydrogen evolution reaction (HER)?

In most cases of measuring the HER the electrolyte is saturated with H2. Similarly for the OER it is saturated with O2. But I have also seen papers that saturate the electrolyte with N2 or Ar....

19 November 2020 4,664 2 View

Which gas is used for Bunsen burner in ASTM D6413 Vertical Flame Test?

I'm trying to make a Vertical Flame Test apparatus for flammability test of PVC based leather. I'm not sure about the type of gas which is to be used for generating the flame using bunsen burner.

10 November 2020 1,939 1 View

How to measure the CEC of zeolite using Ion chromatography ?

Using ion chromatography ,which concentration I should measure of exchanged ion or original ion? ：Na-A zeolite➡Ca-A Which ion concentration should I measure Na or Ca?

10 November 2020 333 1 View

Quantification of gases with FTIR?

i have quntified the gas sample which contain,H2O, CO2, HF,HCL,CO2,NO2 etc with the help of FTIR Gasmet DX400.. The dilution ratio was 1:10 .Nitrogen was used as a dilution gas. how can I find...

04 November 2020 5,132 2 View

Is it possible to use gas chromatography for the analysis of water contaminated by hydrocarbons?

I am using a gas chromatograph to determine the composition of the petroleum fraction, is there a possibility to do an analysis of water contaminated with alkane rich hydrocarbons?

24 October 2020 10,049 3 View

How storage capacity for clathrate hydrate is calculated?

Storage capacity of hydrate solely depends on molar volume of empty hydrate lattice because rest of the terms get canceled (even moles of gas consumed). However, if we take temperature constant,...

17 October 2020 810 2 View

What is the most suitable orbit for Sun-pointing satellite?

I'm designing the feedback control of a CubeSat which shall always points towards the Sun. For attitude determination I use a magnetometer and a Sun sensor while for control 8 cold gas thruster...

15 October 2020 3,531 2 View

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