SCR Catalyst Services
Groome offers a variety of SCR Catalyst services nationwide. Our quality-driven methods are value engineered and proven effective.
Our SCR Catalyst services are completed turnkey and minimal plant support is required. While our focus remains on the entire life cycle of a complete catalyst system, our offerings extend beyond just the catalysts themselves.
SCR Catalyst Testing
Groome partners with industry-leading independent catalyst testing labs to provide the most comprehensive results. These tests replicate your plant’s current operating conditions to take the guess work out of predicting catalyst end of life. The tests also include chemical and physical analysis to help determine sources of catalyst performance losses.
SCR Catalyst Cleaning
In-Situ Mechanical Cleaning is the standard method used to clean SCR catalyst’s. The benefits of this cleaning methods include minimizing pressure drop, improving turbine efficiency, reducing ammonia slip and maximizing the catalyst’s useful life.
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In-Situ Mechanical Cleaning
Catalyst blocks are air-blast cleaned from the downstream side with dried and filtered air using regulated pressures and proprietary nozzles to prevent damage to the catalyst. Upstream faces are then vacuum cleaned to remove bulk foreign object debris and assist in drawing out contaminants.
SCR On-line Catalyst Cleaning
In certain situations, SCR cleaning can take place while you continue to operate. Customers have seen tremendous ROI by allowing uninterrupted plant operation. Plus, our experience shows that an average of 4 shifts are all it might take to complete this type of cleaning.
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No access? No problem.
Groome gets you setup for on-line cleaning by installing custom ports and doing so is simple. We only need to know the following:
• Wall Design: Thickness and insulation depth
• Pressure: Positive or negative
• Interior Impedances: Location and design
Advantages of custom ports
• Custom door design with proper size and shape
• Proper number of ports
• Accessible location and orientation (relative to catalyst)
• Repeatable process (plant investment)
| OBSTACLE | SOLUTION |
| Limited Access | Custom lance and lance tip |
| Structure / Beams | Factor for proper port: placement, orientation, size |
| Grating / Catalyst Retention | Custom tip: shape and diameter plus vacuum pull |
Concerned about Stack Particulates?
On-line catalyst cleaning employs vacuum pull only, with no downstream blowing. All debris/masking/foulant material is removed from the catalyst, putting up to 27″ of pressure in a vacuum bag, not in the gas path.
SCR Catalyst Repacking & Restacking
Over time, the effects of constant airflow can cause shifting of the catalyst blocks or the insulation surrounding them. Depending on the severity of this shifting, a catalyst repacking or restacking may be required.
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Catalyst Repacking
During normal operation, it is possible for insulation to shift or move out of place, creating extra bypass and effecting system performance. A basic repacking of these materials in the effected areas can help fix minor performance issues.
Catalyst Restacking
It is also possible for areas of SCR catalysts to actually shift out of place, creating much larger system performance issues. The restacking process involves the unstacking, reinsulating, and repositioning of all the catalyst blocks in the effected area. Depending on the severity and location of these shifted catalysts, a full system restacking may be required.
SCR Catalyst System Modification
There are many reasons why a SCR catalyst system may need modifications. Whether your facility needs to fix damaged framing, is upgrading or adding catalyst volume, or is having sealing or flow issues, Groome has the knowledge and experience you need to get your system operating the way it was meant to.
Groome works on any
MAKE, MODEL, or AGE
Catalyst
SCR Catalyst Disposal
Our industry partnerships allow us to take the headache and guesswork out of the proper disposal of spent catalysts. Catalysts are transported off-site, all steel is recycled and the catalyst is mechanically deconstructed.
SCR Catalyst Supply & Installation
Groome’s in-house engineering team works closely with several HRSG and catalyst OEM’s when sourcing your new catalysts. During the replacement, Groome is responsible for all scaffolding, crane support, rigging, and welding services needed for a smooth installation.
Safety Is Paramount at Groome
We follow IME/OSHA-based safety training programs, along with an OSHA 10 training standard for all employees.
An accident-free environment translates to lower insurance costs, better employee commitment, higher productivity, and an improved bottom line for our customers.