Welcome to the World of Process Analytics PAT - Technology and Process Control

 
 

 




Special Reports

Special Reports Rubric : gas analytics

Rubrics: gas analytics - physical parameter
Sophisticated gas analysis and data logging equipment for pressure and temperature -
gas and water suppliers (local distribution companies), steel producers, the chemical industry, operators and manufacturers of biogas- and sewage plants

 

Utilize process gases instead of flaring them

Typical hot-rolling mill Processed steel

A redundant analysis system
consisting of CWD 2005 calorimeters with fully-integrated gas analysis
for CO, CH4, C2+ ensures efficient, environmentally sound combustion of process gases
in hot-rolling furnaces.


Many process-related operations in the industry produce process gases

that in the past have often been regarded as by-products and have been flared at the expense of the environment.
This practice is changing in light of growing energy awareness.




The CWD 2005 series calorimeters
from UNION Instruments
determine the heating value and the Wobbe index of various gas types, such as natural gas, biogas, biomethane, and process gas.

Karlsruhe, 5/29/2015:

Today, even though they have less energy content than natural gas,
process gases produced in many process-related operations and especially in the steel industry are being collected in gasometers and used as combustion gas in place of natural gas in thermal processes.
However, the fluctuating composition of the process gas, especially the CO content and the related fluctuating energy content, calls for special measures.

The energy content of the gas composition is stabilized by controlled addition of natural gas.

One measuring system that is specially configured for this task is the
CWD2005 direct calorimeter from UNION Instruments

with additional integrated gas analysis and measured value processing.

The system determines the Wobbe index
and gas density values as well as the concentrations of CH4 and C2+. The heating value and air requirement are also calculated from this. Altogether the information from the calorimetry and gas analysis is a basis for sufficiently accurate control of the gas addition.

It is important that the measuring device reacts fast enough to ensure the control process, which requires special measures due to the size of the plant and the mixing of gases in the pipe system.

UNION Instruments has developed a computational model
based on delay elements that can be adapted to different plant dimensions
by assigning parameters.

     

Technical Articel Union Instruments June 2015


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