Tehran Center Labs. of Research & Technology Co.
National Iranian Petrochemical Co.

1)  Design & Fabrication of WinXP-based Analogue "Mass Flow Controller" Interface for Acid
     Acetic pilot plant [2004]
2)  Design & Construction of WinXP based Digital Field-Bus (HART protocol based) Mass
     Flow Controller (MFC) Interface & Thermocouples Monitoring for CataTest Reactor [2004]
3)  Design & Construction of WinXP based Monitoring & Control software & Hardware (PID
     controller for auto adjusting of reactor pressure, Dosing pump controller, MFC) for Chem
     Reactor [2004]
4)  Design & Construction of WinXP based Data & Chart Handling Software & Data
     Acquisition Hardware for TPD/TPR 027 (furnace controller consist of Thermal
     Conductivity Detector (TCD) & Thermocouple modules) of Micromeritics PulseChemiSorb
     2705 [2007]

CataTest is the System used for Determinations of different variables for researching on Catalyst improvement, such as: Reacting Temperature, Pressure, Feed Flow; Catalyst Selectivity, Activity, Screen and Life span, etc

A Mass Flow Controller (MFC) is a device used to measure and control the flow of gases. It is designed and calibrated to control a specific type of gas at a particular range of flow rates. The MFC can be given a setpoint from 0 to 100% of its full scale range but is typically operated in the 10 to 90% of full scale where the best accuracy is achieved. The device will then control the rate of flow to the given setpoint. Using our software you can easily use each MFC for different gases without need to internal setting or recalibration.

The HART Communications Protocol (Highway Addressable Remote Transducer Protocol) is an early implementation of Fieldbus, a digital industrial automation protocol. The protocol was developed by Rosemount Inc. , it is field proven and industrial standard.

The Thermal Conductivity Detector (TCD) is a bulk property detector and a chemical specific detector commonly used in gas-liquid chromatography. This detector senses changes in the thermal conductivity of the column effluent and compares it to a reference flow of carrier gas. Since most compounds have a thermal conductivity much less than that of the common carrier gases of helium or hydrogen, when an analyte elutes from the column, the effluent thermal conductivity is reduced and produces a detectable signal. The TCD is often called a universal detector because it responds to all compounds. Also, since the thermal conductivity of organic compounds are similar and very different from helium, a TCD will respond similarly to similar concentrations of analyte. Therefore the TCD can be used without calibration and the concentration of a sample component can be estimated by the ratio of the analyte peak area to all components (peaks) in the sample. The TCD is a good general purpose detector for initial investigations with an unknown sample. Since the TCD is less sensitive than the Flame Ionization Detector (FID) and has a larger dead volume it will not provide as good resolution as the FID. However, in combination with thick film columns and correspondingly larger sample volumes, the overall detection limit can be similar to that of an FID. In conclusion the TCD is not as sensitive as other detectors but it is non-specific and non-destructive. The TCD is also used in the analysis of permanent gases (argon, oxygen, nitrogen, carbon dioxide) because it responds to all these pure substances unlike the FID which cannot detect compounds which do not contain carbon-hydrogen bonds.

In chemical engineering, Chemical Reactors are vessels designed to contain chemical reactions. they are used as continuous reactors or batch reactors. Designers ensure that the reaction proceeds with the highest efficiency towards the desired output product, producing the highest yield of product while requiring the least amount of money to purchase and operate. Normal operating expenses include energy input, energy removal, raw material costs, labor, etc. Energy changes can come in the form of heating or cooling, pumping to increase pressure, frictional pressure loss (such as pressure drop across a 90 o elbow or an orifice plate), agitation, etc.

Catatest

Acid Acetic pilot plant

Chem Reactor

Modbus MFC Network & Power Supply

Opinion of NPCRT