The Fisher Process uses a combination of produced water and chemicals to remove and dispose of H2S at a fraction of the cost of existing solutions with minimal emissions, allowing our customers to significantly reduce operating costs and get to market faster with easily obtainable air permits.
The system operates as a bolt-on to an amine plant. H2S and CO2 are separated and concentrated by the amine unit and are input into our system along with produced water and chemicals, where H2S is selectively removed. This leaves only CO2 and minimal SO2 emissions which fall under easily attainable air permits. The by-product of this process is non-hazardous and can be disposed of via injection well.
The existing solution spectrum is cost prohibitive for certain H2S volumes, creating a no man’s land for producers and midstream providers.
As quantities of H2S increase, it may become too expensive to use a scavenger, but uneconomic to spend large amounts of capital buying and installing a sulfur recovery system or drilling an acid gas injection well. This creates a gap in the market for H2S mitigation technology.
Flaring acid gas containing H2S creates large amounts of SO2; if H2S volumes are high enough then onerous air permits are required, limiting the amount of H2S that can be treated.
For example, treating 20MMCFD at 175ppm H2S with an amine plant alone would put you above the limit of SO2 emissions under a TECQ Air Permit.
The Fisher System operates as a bolt on to an amine plant which separates and concentrates H2S and CO2 from natural gas. This gas is then piped to our system where we use a combination of produced water and chemicals to sequester the sulfur and dispose of the non-hazardous liquid byproduct in existing salt water disposal infrastructure.
Our patent pending process can remove and dispose of 99% of the sulfur while remaining under the most stringent air emissions regulations. The combination of the amine and Fisher Process allows us to operate at a fraction of the cost of scavengers and with much less capital than SRU’s or acid gas injection wells.
30-90% reduction in cost vs chemical scavengers, depending on H2S volumes
No capital expenditure required, system to be provided as a service
A 99% sulfur removal efficiency means minimal emission, easily attainable air permits, and a faster time to market
System can be easily moved to another site after initial term
No Title V air permitting required regardless of amount of H2S
High turndown capabilities
Can handle large range of gas volumes and H2S concentrations
1301 Fannin Street, Houston, TX 77002
(209) 448-5448
sales@fisheragc.com
