In response to Industry’s need to achieve greater facility efficiency , decrease greenhouse gases and meet new emission standards Global Analyzers has developed a Total Reduced Sulphur Continuous Emission Monitoring System (CEMS)
Engineered by the Global team the TRS CEMS consists of a patented sample extraction probe which maintains constituent integrity throughout the analysis process. The extracted sample is rapidly diluted with clean instrument air through a ruby sonic orifice eliminating sample loss by removing sample contact with moisture where miscible components may be lost. The sample is continuously directed through a selective scrubber and oxidation system and analyzed by trace level analyzers. The CEMS performance is validated by the injection of reference standard TRS gas. Multiple sensors are installed in the system infrastructure monitoring critical process operating parameters and analyzed by the data acquisition alarming software. The entire system is modular which enables quick component replacement and the seamless integration into existing Global CEMS.
The TRS CEMS has undergone exhaustive lab and field testing and has been validated following Alberta Environment CEMS Code (1998) and US EPA Performance Specifications requirements. The system has been proven by completing a series of field tests comparing CEMS data to reference method results and performing relative accuracy test audit (RATA) calculations.
Improving facility economics is critical and significant cost savings can be realized through fuel gas consumption reduction. Global Analyzers TRS CEMS offers industry a unique solution to meet regulatory requirements while decreasing fuel gas usage. Additionally lower fuel gas usage means lower CO2 emissions and this translates to a reduced Carbon footprint and Carbon Costs.
In the oil and gas industry acid gas processing facilities utilize incinerators to oxidize sulphur compounds that cannot be released into the atmosphere. Many jurisdictions have regulations requiring sulphur processing facilities to meet emission standards through stack exit temperature limits. In Alberta satisfactory oxidation has been met if the TRS emissions are below a combined level of 300 ppmv. Sulphur plant incinerators utilize a significant portion of a facilities fuel gas to maintain effective sulplhur compound oxidation. By continuously monitoring TRS emissions from sulphur plant incinerators facility operators can reduce fuel gas usage by ensuring that the TRS emission are below the emission limits at lower stack exit temperatures.
Given the current facility operational conditions such as total throughput , acid gas composition, sulphur gas processing efficiency and stack exit temperature by installing a Global TRS CEMS the example facility can operate well below the current operating temperature while meeting the TRS emission limit. The cost savings realized from the fuel gas usage reduction and CO2 savings resulted in Total Annual Savings of nearly $400,000.00
Original Operating Parameters
|Original Operating Temperature||538 ºC|
|Original Fuel Gas Consumption||20 E3m3/day|
|Original TRS Emissions||34.5 ppmv|
|Fuel Gas Price||$2.98/GJ|
|Current price of CO2||$20.00/T|
Optimized Parameters and Savings
|Temperature Reduction||100 ºC|
|Average TRS Emissions||75 ppmv|
|Fuel Gas Savings||34.39%|
|Green House Gas Savings||4849 T/Yr CO2 (equivalent)|
|Total annual cost savings||$373,855.83|