SPO Networks Inc (SPOI)

[Bobinsd]

I got this from the EPA...my question was sent in July...click on the reference URL first then read the second emeil..

Bob,

This reference was just brought to my attention. It is the official EPA - OTAQ consumer information document for add-on devices such as hydrogen generator systems.

http://www.epa.gov/otaq/consumer/420f11036.pdf

I hope this is helpful, albeit a bit delayed in getting to you.

-Dan
Second email...much is irrelevant until the end...

Hi Bob,

Diesel oxidation catalysts (DOCs) are exhaust after-treatment devices that reduce emission from diesel engines. Typically packaged with the engine muffler, DOCs are widely used as a retrofit technology because they require little or no maintenance. Engine manufacturers have used DOCs in a variety of applications for many years.
DOCs consist of a flow-through honeycomb structure that is coated with a precious metal catalyst and surrounded by a stainless steel housing. As hot diesel exhaust flows through the honeycomb (or substrate), the precious metal coating causes a catalytic reaction that breaks down the pollutants. These devices may be formulated to operate with fuel sulfur levels of 500 ppm or less, but they are most effective when fuel sulfur is 15 ppm or less. DOCs can be coupled with closed crankcase ventilation, selective catalytic reduction or lean NOx catalyst technologies for additional emission reductions. Here is a fact sheet with some additional information: http://www.epa.gov/cleandiesel/documents/420f10031.pdf

Diesel particulate filters (DPFs) are exhaust after-treatment devices that significantly reduce emissions from diesel-fueled vehicles and equipment. DPFs typically use a porous ceramic or cordierite substrate or metallic filter to physically trap particulate matter (PM) and remove it from the exhaust stream. DPFs can be installed on existing vehicles and must be used in conjunction with ultra-low sulfur diesel (ULSD) which has a sulfur content of less than 15 ppm. DPFs may require special mounting or brackets as they are typically heavier than a conventional muffler or DOC. In addition, an electronic back pressure monitoring and driver notification system must be used with a DPF. DPFs use either passive or active regeneration systems to oxidize the PM accumulated in the DPF. Passive filters require operating temperatures high enough to initiate combustion of collected soot. Active regeneration uses other heat sources, such as fuel burning or electric heaters, to raise a DPF temperature sufficiently to combust accumulated PM. In addition, filters require periodic maintenance to clean out non-combustible materials, such as ash. Here is a fact sheet with some additional information: http://www.epa.gov/cleandiesel/documents/420f10029.pdf


As for the testing of HHO gas as a catalyst for engine efficiency, I do not have any knowledge of such testing. I would recommend contacting the clean diesel help line with your question. 1-877-NCDC-FACTS (1-877-623-2322) or send an email to [e-mail].

I hope this information is what you were looking for.

Thanks!

Jenna


====================
Jenna Salomone
Mobile Source Section
USEPA Region 2
290 Broadway - 25th Fl.
New York, NY 10007
[phone]
====================
I have contacted the C;lean diesel people in the past...they have no info and no interest. They only look at what companies have sent them as evidence of new technology.
I know you guys have missed me... hello again