LiqMix

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LiqMix

Generate your gas standard from a liquid
LiqMix

Some analytical fields need gas standards which are not easily commercially available in gas cylinders.
AlyTech has developed LiqMix specifically for those applications when you need to produce a standard gas from a liquid or liquid mixture.

The system vaporizes in precisely controlled manner a liquid into a gas stream generating a gas standard at multiple concentrations with good accuracy, high repeatability and full traceability.

Your benefits using LiqMix :

  • Creating gas phase standards from a gas, liquid or liquid cocktail mixture
  • Wide range of concentrations from % down to ppm
  • Dedicated LiqMix software does all calculations and devices control
  • Robust design, simple in use, fully automated operation
  • Heated lines prevent condensation and maintain the vapors in gas phase

OPERATION

APPLICATION

TECHNICAL SPECIFICATION

OPTION

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Operation principle of LiqMix  is based on the proven technology of Mass Flow Controllers (MFC) for gases and liquids.
MFCs are perfectly factory calibrated by Alytech and traceable to NIST. A liquid is delivered to a vaporiser with precise control by a Coriolis MFC that can handle any type of liquid or liquid mixture and not dependent on ambient conditions (pressure, temperature density, conductivity and viscosity). The vaporiser is regulated at user-defined temperature. Liquid vapors are diluted by a carrier gas and future transferred to a mixing chamber where it can be mixed or diluted again by up to 4 optional gas channels. This allows generation of complex mixtures at multiple concentrations in a wide range.
All interconnections and outlet line are heated in order to maintain the vapors in gas phase avoiding re-condensation till the delivery point.

LiqMix is automated, cost effective way for on-site generation of gas standards for chemicals that are not commercially available in cylinders, like unstable, reactive compounds in complex multicomponent mixtures. LiqMix  is a simple and reliable way to perform multi-point calibrations, linearity and hysteresis checks, LOQ / LOD validation with gas standards such as BTEX, other hydrocarbons mix, siloxanes, ethanol and phenol, and others.
Application examples:
Biogas : generation of siloxane standards (issue of silicone containing contaminants)
Air Regeneration Systems : ethanol and phenol standards to test efficiency of charcoal filters
Humidity sensors: generation of moisture standards (sensor validation)
Toxic gas detectors: Gas detectors calibration, and alarm level checks

Number of gas channels: 1 Liquid and up to 5 gas channels
Number of liquid channels: 1
Liquid MFC Coriolis technology, from 5g/h to 200 g/h FS
Liquids: Pure liquid or a liquid mixture (ex.: water, organic solvents) without precipitation, polymerization or salt formation (for specifics, please contact us)
Liquid flask (optional) should be pressurized by inert gas
Number of gas channels: up to 5
Inlet Gas pressure: stable and regulated within 3-8 bar
Gas compatibility: pure gases, concentrated gas mixtures, most of aggressive and reactive gases (for specifics, contact us)

Dilution ratio of the initial concentration: up to 1:10000
Accuracy of output flow: less than 2% all over the scale

Heated output line standard length 2 m
Outlet Gas Pressure: atmospheric, higher pressure possible
Connectors: Swagelok 1/8”, other on request

Software: required PC with Windows 7 or higher, Ethernet port communication

Operation temperature: 10 – 50°C
Power supply: 90-260Vac, 1,5-4A, 50-60Hz
Dimensions: L x W x H 42x22x46 cm
Weight: approx. 25 kg (depends on configuration)

A fully inert version
compatible with most aggressive gases and active compounds like sulfurs, H2S, ammonia, VOC
A liquid canister
1L stainless steel flask with support. Includes tubing with a tap and connection fittings





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