[Gasification] Naphthalene Condensate Photos, GAST methodology

Nicolò Cerni cerni at altair-international.com
Mon Apr 24 13:35:15 CDT 2017

Doug Williams,

Hello Doug,

thank you, I never knew your are N Zealander...... the PM 2 comes from
thank you for all your scientific infos
what we can offer are data from our 42 gasifiers sold since 2002 all over
the  world and performing quite well
I will pass yr text to our scientific and hitech board, I am not a
scientist, my job is to sell and get paid

I design ONLY the quench and the Scada

kind regards


2017-04-24 10:53 GMT+02:00 Doug <doug.williams.nz at gmail.com>:

> Hi Nico and Colleagues,
> Thanks for replying as it always helps to see see where knowledge is
> coming from, and help explain why gasifiers have failed projects across
> their implementation history. At my stage of life, it's about finding the
> missing pieces of information, not using copious amounts of data collected
> from malfunctioning or poorly design gasifiers, although this may be
> important to others.
> First up, New Zealand where I live isn't Australia, and you could set off
> WW3 mixing up your Geography. Not sure they teach that anymore(:-)
> I'm not know for two line replies, so take your time to take in a word
> picture.
> However you write it, 2 microns  MP2 is the soot particle size in
> question, and you consider it to be not filterable from oil, even if
> introduced from a gasifier. So what are we talking about, filters for the
> oil or filters for the gas?  The physics of gas particle filtration is
> clearly laid out in  Perry and Chiltons Chemical Engineers Hand Book,  published
> by McGraw Hill, and there you will see that , MP2 can be removed by
> granular bed filters.
> Smaller sub-micron particles need cooling to the point of moisture fogging
> or misting, so that it condenses on the particle and it drops out by
> precipitation. If we freeze the gas stream to remove all moisture, then
> your gas will become dry and clean.  Tom T. shows this at Thermagenics,
> and as Harrie showed in his photo, Naphthalene can also be removed.
> Refrigerated gas cooling still has to be proven for it's use in the Worlds
> differing environments, solving specific problems, but not tar.
> Oil will protect the engine in normal clean producer gas operation, "IF"
> oil moisture levels are minimal, normal combustion temperatures are
> maintained, and it stays withing it's viscosity range. That is all most
> manufactures require for reliable engine operation. The oil additive
> package contains anti oxidants to suppress asphalt and resins from forming
> when heated, seen usually on the inside and outside of pistons walls and
> ring grooves, as brown or black deposits. This additive also has a second
> function of being the extreme high pressure boundary lubricant, forming an
> organic metallic skin on the base metal. Unnatural engine temperatures
> quickly deplete the boundary lubricant function and metal to metal contact
> wrecks the engine. In addition to heat oxidation, there is also catalytic
> oxidation caused by trace metals in the oil, either one is detectable by
> Blotter Spot testing.
> The second additive is the detergent dispersant or alkalinity of the oil
> (TBN) which keeps the soot in the oil in suspension, preventing it from
> forming larger particles MP15 which drop out as sludge.
> If moisture is present in the gas, it rapidly depletes the alkalinity.
> Standard engine oil filters in general have a MP10 porosity membrane mainly
> for the purpose of trapping abrasives down to MP2 where it no longer can
> span the lubrication film. Air filters also reduce environmental dust and
> there are many variations to designs. A Blotter Spot will show detergent
> activity.
> The amount of dust or carbon will eventually thicken the oil viscosity
> affecting oil pressure and reduce flows through the filter membrane, so a
> by-pass valve opens and unfiltered oil circulates. Moisture in the gas can
> quickly reduce the alkalinity and it will also carry sub-micron carbon soot
> which will increase the viscosity. The oil companies say you can thicken
> oil by 30% before changing, so how can that MP2 or smaller soot be
> controlled? Many engine makers install a By-Pass filters that take a small
> flow of oil pressure not used by the engine and it passes through a dense
> cellulose medium. The cellulose has an affinity for moisture so the TBN is
> either slower to decline, or stays within usable range to prevent acid
> erosion of the engine metals. These filters eventually fill and in changing
> them, you only discard the dirtiest oil in the engine.  Blotter Spot tests
> show both thickening density and moisture, but a Crackle tests will pick up
> moisture before the blotter in most cases.
> All of the above is as basic as possible in explanation, compressing oil
> company oil screen testing procedures for used oil. Fluidyne supplied
> By-Pass filters to many truck fleets in New Zealand with support from
> Caltex Oil Laboratories, from 1974-1983 when our manufacturing changed over
> to Gasifiers.
>  I see you recommend a 15 year long life oil for gasified engines. Before
> offering such advanced oils for you gasified projects, you should see how
> that affects your engine makers warranties for the equipment you hope to
> supply.
> To discuss engine failures needs supportive information as to how they
> failed. The engine maker becomes a victim of bad gas making technology,
> much the same as a good specified fuel gasifier making tar with the wrong
> fuel. We should start another discussion on gasified  engine failure, as I
> have seen a few.
> Doug Williams,
> Fluidyne.
>  On 24/04/17 09:02, Cerni wrote:
> hello all Readers,
> we can provide syngas analysis over the last 4 years and real life
>  operation data
> for that gentleman in Australia inquirying about PM 2 MP 2 this is the
> particulate matter smaller than 2'5 nanometers, we invert letter often in
> latin countries, the correct spell is PM 2 , and it is the  plague of
> european urban centers, whereas PM 10 is easily monitored and can be
> partially prevented, in Stuttgart Germany for example they wash out urban
> roads  every second night, the origin is still heating oil burners for
> residentail heat and of course diesel truck engines emissions, Padania
> plains in N Italy are dramatically affected...... city gas is NOT the
> solution,
> as to the CHP cogen engines oil inspection glass, darkening is not only a
> chemical issue my friend, it has very much to do with epytaxial growth in
> hubs and cylinders inner chambers, and no gasifier  filter today can get
> rid of enough PM 2 to avoid this...
> how do you measure PM 2???
> regards
> Inviato da iPad,
> Nicolo Cerni
> mobiloffice
> 0039 340.830.67.97 pls sms me or skype nico_cerni
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*gradite i nostri  piu' distinti saluti,  **atentamente, best regards,
** freundliche
Grüße , *наилучшими пожеланиями
*Nico Cerni ,  **N C A* (N)ico (C)erni (A)ssociates
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