Emissions control systems for today’s air quality standards
FAQs – E-POD
- Does the product meet Tier 4 Final compliance?
- Does the product meet EPA NSPS compliance for lean-burn natural gas engines?
- Does the product reduce emissions of NOx, PM, HC and CO?
- Is the product custom-designed and manufactured to meet space and application variables?
- Is the product self-contained, with all parts fitting into a single unit?
- Does the SCR unit offer sound attenuation?
- Do the SCR catalysts or DPFs contain toxic vanadium?
- What temperature range is required to operate the SCR product?
- Does the SCR unit have a true closed-loop controller system?
- Can the SCR unit be used on any engine brand?
- Does the unit have double-walled construction?
- What type of steel is used in the body construction of your product?
- Is the system light-weight?
- Can the system be upgraded from DOCs to DPFs?
- Are the control and pump systems separate units?
- Are all components of the system manufactured in the USA?
E-POD Emission Reduction Results;
chart shows how the E-POD
meets Tier 4 Final Compliance.
E-POD: NSPS Compliance for Lean-Burn
Gas Engines showing dramatic
reduction of NOx, CO and HC.
Using custom manufacturing, the
CleanAIR E-POD can be designed to
fit inside the roof of a generator trailer.
The E-POD is installed inside of the
trailer on the left and virtually disappears
from view, compared to the competitor’s
unit on the right.
Inside view of E-POD installed above
generator, inside of trailer.
The E-POD utilizes double-walled,
insulated construction.
The E-POD includes diesel oxidation
converters or diesel particulate filters.
Custom design and manufacturing
to fit end-user’s application.
CleanAIR E-POD Dosing Cabinet:
closed-loop electronic control
and pump system in one unit.
Three low-profiled E-PODs installed
on top of generator trailers.
- 1. Does the product meet Tier 4 Final compliance?
- Yes, CleanAIR’s E-POD with DPFs guarantees Tier 4 final compliance for Tier 2 and Tier 3 engines, and most Tier 1 engines. In order to guarantee strict Tier 4 Final compliance standards, an engine must reduce emissions of NOx, PM, HC and CO. The only way to achieve this goal is through the combination of SCR catalysts with diesel particulate filters. Few technologies on the market today offer combined technology, and most will not specify or guarantee emissions reductions. The CleanAIR E-POD guarantees dramatic reductions of NOx, PM, HC and CO.
- 2. Does the product meet EPA NSPS compliance for lean-burn natural gas engines?
-
Yes, the CleanAIR E-POD with DOCs guarantees NSPS compliance for lean-burn natural gas engines. News Source Performance Standards require the reduction of NOx, CO and HC. To do this for lean-burn natural gas engines, SCR catalysts need to be combined with oxidation catalysts. Few technologies on the market effectively offer this combination. The CleanAIR E-POD guarantees the appropriate emission reductions necessary to meet NSPS compliance for lean-burn natural gas engines.
- 3. Does the product reduce emissions of NOx, PM, HC and CO?
-
Yes, the E-POD with DPFs will reduce NOx by over 95%, PM by greater than 85%, HC and CO by up to 95%. The CleanAIR E-POD is one of the only SCR products incorporating SCR catalysts with DPFs to offer maximum emissions reductions for NOx, PM, HC and CO.
- 4. Is the product custom-designed and manufactured to meet space and application variables?
- Yes, all E-PODs are custom-designed and manufactured to exact customer requirements. CleanAIR’s integrated manufacturing approach incorporates engineering, catalysis, steel fabricating and electronics design, guaranteeing product quality control and the ability to engineer custom systems that fit specific engine and application challenges. CleanAIR engineers can evaluate unusual space requirements and design to fit the customer’s needs. The E-POD is also designed to meet customer inlet and outlet specifications.
- 5. Is the product self-contained, with all parts fitting into a single unit?
- Yes, the SCR catalysts, DPFs and mixing unit are all contained within a single double-walled, insulated stainless-steel module also offering sound attenuation.
- 6. Does the SCR unit offer sound attenuation?
- Yes, The CleanAIR E-POD is the only completely insulated, single-unit SCR product available on the market that also offers a choice of critical or super-critical grade silencing.
- 7. Do the SCR catalysts or DPFs contain toxic vanadium?
- No, CleanAIR Systems does not use toxic materials, such as Vanadium in the manufacturing of its catalysts. Vanadium Pentoxide is a common element used in the manufacturing of SCR catalysts, as well as some DOCs and DPFs. This type of catalyst is associated with health and environment risks factors that are not present when using iron-base or precious-metal based catalysts (such as the catalysts manufactured by CleanAIR Systems).
CleanAIR has never and will never use Vanadium Pentoxide or any other toxic element in the manufacturing of their catalysts. - 8. What temperature range is required to operate the SCR product?
- The E-POD operates under a wide exhaust range from 270C to 560C (520F to 1040F), enabling operation on many different engines. To guarantee optimum catalyst performance, an engine exhaust temperature needs to fall within a system’s exhaust operating range. Due to CleanAIR’s proprietary SCR catalyst formation, the E-POD operates under a wide exhaust range allowing it to reduce emissions on engines having a lower exhaust temperature.
- 9. Does the SCR unit have a true closed-loop controller system?
- Yes, CleanAIR’s proprietary controller adjusts the operation of the system to reflect variable NOx levels in the exhaust stream. In a true closed-loop control system, such as that developed by CleanAIR Systems for the E-POD, active measurements are taken both pre-NOx and post-NOx. The system allows for precise delivery of the reductant by self-adjusting the urea injection according to the post-NOx reading. A closed-loop system results in a higher level of system performance than an open-loop control system because it delivers the exact amount of reductant needed to reduce NOx levels.
- 10. Can the SCR unit be used on any engine brand?
- Yes, the E-POD can be used on mixed-brand fleets.
- 11. Does the unit have double-walled construction?
-
Yes, the E-POD body is constructed of double-walled components and fully insulated, offering sound attention and lowering surface temperature. The E-POD’s double-walled design also keeps surface temperature lower than non-insulated products.
- 12. What type of steel is used in the body construction of your product?
- The E-POD is made of 304L corrosion-resistant stainless steel.
- 13. Is the system light-weight?
- Yes, due to CleanAIR’s design engineering capability, the double-walled stainless-steel construction is lighter than products made from carbon steel. Also, the E-POD has only one module compared to other products having multiple modules that add extra weight.
- 14. Can the system be upgraded from DOCs to DPFs?
- Yes, a customer can purchase less-expensive DOCs and later upgrade to DPFs to increase PM reduction.
In addition to SCR catalysts, the E-POD includes OCs, DOCs or DPFs depending on the engine and emissions reductions required. DOCs cost less than DPFs and are used to reduce HC and CO. An E-POD with DOCs can be a cost-effective option in meeting Tier 3 or Tier 4a Interim standards.
If future reductions of PM are required to meet Tier 4 Final compliance, the E-POD is designed to easily exchange CleanAIR DOCs for DPFs. An E-POD equipped with DPFs will guarantee Tier 4 Final compliance in Tier 2 and Tier 3 engines, and some Tier 1 engines. Having the option to upgrade DOCs to DPFs can save the end-user the upfront expense of DPFs until it is necessary to comply with Tier 4 Final regulations.
No other SCR system currently on the market offers this option. - 15. Are the control and pump systems separate units?
- No, CleanAIR has combined the control and pump systems into a single, compact Dosing Cabinet. Most SCR systems require separate control and pumping systems. This means extra equipment, installation and assembly. The E-POD’s Dosing Cabinet is one compact, cleanly designed unit containing just two break-away lines: one for the air compressor and one for urea. This enables easy installation and saves on space.
On most systems if a part needs to be replaced, the customer or service person must first determine which part needs replacing, then how to disconnect the broken part and finally how to replace it with another part. This alone could take a great deal of time and shut down an entire system while waiting for a replacement part.
In comparison, the E-POD’s all-in-one Dosing Cabinet solves this problem. By disconnecting the Dosing Cabinet’s two break-away lines, the customer can simply plug in another Dosing Cabinet and start-up the system. - 16. Are all components of the system manufactured in the USA?
-
Yes, CleanAIR Systems is the only US-owned catalyst and catalyst system manufacturer. All components of the E-POD are manufactured in the USA by CleanAIR Systems offering single-source control of system design, manufacturing, assembly and operation.
Contact Us
800-355-5513
505-474-4120
News
Caterpillar Acquires CleanAIR Systems
EPA Honors CleanAIR Systems
CARB Verified
CleanAIR PERMIT™ Filter is Level 3 Plus
CleanAIR’s Emissions Guidebook
For a complimentary copy, click hereJust Added!