Open proposal on GlidArc assistance
for solid matter gasification
August
2010 Old, simple, and cheap gasification
technologies can come back for any biomass, rubbish … or coal to syngas
generation! Their main drawback was a presence of residual tars. But instead
of removing them by filters – we are proposing to rather increase their
concentration in the producer gas and apply our 2nd step of total
conversion of highly abundant tars, vapors, hydrocarbons, and other volatile
carbonaceous molecules into an extra amount of very clean synthesis gas (H2
+ CO) using our GlidArc-assisted selective partial oxidation. The main target of gasification step becomes
only a separation of ashes, minerals, and metals from all other volatile
elements and compounds that gives "dirty" producer gas. The GlidArc
step then deals with all complex molecules and converts them totally into H2
and CO. A specific property of this step is its selectivity: H2
and/or CO present in initial dirty producer gas are not attacked in the
process so that more syngas is generated! At least 3 vol.% of cumulated organic
Carbon (in any form) is necessary in the "dirty" producer gas for
this technology. Our preliminary runs indicate the
feasibility of proposed strategy of rather dirty than clean gasification. Full-scale
tests are under preparation. There is no upper limit of light tars content in
the producer gas. There is no limit of the gas upper temperature so that the
GlidArc can reuse a residual heat of gasification. Figure shows the concept
of such integrated system of dirty gasification followed by hot producer gas
reforming/cleaning.
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Open proposal on waste carbonaceous
liquids reforming
July
2010 Our company develops various plasma-assisted
processes. Since 2001 we are designing, fabricating, and testing various
plasma reformers of carbonaceous matter into the syngas (a mixture containing
H2+CO) or a fuel gas (syngas + light hydrocarbons) for diverse
purposes. ECP has manufactured pilot reactors of 0.6, 1.6, 6-L; and 20-L.
Long runs were performed in several countries. In Utah we successfully fed a
Solid Oxide Fuel Cell with reformate generated from a high Sulfur fuel. In
Tennessee, we have supplied 1 kg/h of Hydrogen produced from the Soybean biodiesel to a catalytic de-NOx process that successfully abated
almost all NOx exhaust from a 4 MW engine. In Colorado we showed that
the fuel gas produced at quite large scale from the soybean oil or biodiesel
can directly feed a spark engine… Total conversions of waste bone oil and
glycerol into clean syngas was performed for our German and Florida partners,
respectively… Every year we are progressing by improving our
reactors, by reforming new matter, and by increasing simplicity as well
efficiency of our technology. Every year we show our progress during symposia. Based on accumulated know-how we are
constructing various prototypes for liquid carbonaceous matter conversion
into syngas or fuel gas. The prototypes can be described as follows: i)
Plasma processor based on
GlidArc-I principle, including new post-plasma catalytic zone. ii)
Plasma
processor based on new GlidArc-III principle. iii)
Heat and steam
integration. iv)
Robust vessel and other
parts allowing higher-pressure applications. v)
Control of temperature,
pressure, air (or an enriched air) and feed flow-rate, as well as the
syngas/Fuel-Gas composition. These prototypes allow us to collect data to design
the best reforming scenario of a given feed and for a given application of
our future partners. Presently we are particularly seeking for Partner(s)
and/or Investors(s) interested in reforming of waste
bunker oils and wood oil. Other carbonaceous liquids (including highly
toxic) can also be processed… ******************** Open proposal on
Fischer-Tropsch reactors and
catalysts for syntheses of liquid fuels
June
2010 ECP has many years of experience in the FT conversion of CO + H2 mixture
(syngas) into liquid fuels. Moreover, we accumulated significant experience
on fixed-bed FT reactors such as: a)
Industrial tubular units
using Cobalt catalysts in Poland and in Russia, b)
Small laboratory FT setups
in Moscow and Orleans (atmospheric and then in pressurized reactors, the both
with various Cobalt catalysts), c)
Large
laboratory FT setup in ECP (5-m high, 1-inch
diameter, 20 bar steel with a Cobalt catalyst). We
concluded that huge multi-tubular steam-cooled FT reactors (since 1935) are
not adapted for a small or medium scale. As result ECP has invented a sandwich-type compact multiple plate FT reactor. In parallel, we have also developed our GlidArc-assisted reformers of various fossil and renewable liquids and gases into syngas. We are now able to totally reform:
Natural gas of any composition (including
H2S), Biogas (even at high CO2 content),
Bio-Methane, LPG, waste
flared gases, crude
"producer gas" from biomass pyrolysis or gasification, various
vegetable oils (including waste), waste alcohols, waste liquids from coke
production, liquids or tars from biomass gasification or pyrolysis,
glycerol from biodiesel production, and others. We have reached a scale of 22 m3(n)/h
of continuous output of pure Syngas. Once compressed, this real syngas is
used for feeding our FT reactors installed in our facility: o
One-tube (14/12 mm) 0.25-L reactor, o
One tube (20/18 mm) 0.65-L reactor, o
Two-plates and eight-tubes (20/18 mm) 5.5-L reactor, o
One tube (60/52 mm) 6.4-L reactor. The FT synthesis temperature (can reach
400°C) is controlled as well as the output pressure (up to 40 bar) and the
input syngas flow-rate. The entering syngas and products leaving the FT units
are on-line analyzed using our gas chromatographs. Liquid products are
collected at 0°C for further analyses. Our
reactors have a test capacity up to 1 kg/h of FT fuel simulating typical
industrial conditions… Iron-based FT catalysts are advantageously
adapted to these FT reactors. Such catalysts accept various syngas mixtures
at much wider H2/CO molar ratios than the Cobalt-based fragile
catalysts. We are manufacturing our own catalysts. Our real syngas generated
from various fossil and renewable feeds via ECP's reformers is used
for three successive operations: catalyst precursor reduction, its
activation/accommodation, and final continuous FT synthesis (several weeks).
All these operations take place in the same FT reactors. ECP believes our GTL
system will be superior because of its compact packaging. For example, it can
be built on barges for offshore plants or at very remote area. We believe
that ECP's GTL technology will be simple and "low cost". We hope our FT-related
syngas generators, high-pressure syngas transfer equipment, and prototypes of
FT reactors may be used for designing a specific test-setup at as close as possible
final Biomass-to-Liquids conditions. We are also ready to perform long tests
of other FT reactors and catalysts on request… |
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_________________________________________________________________________ Contact us: echph@wanadoo.fr |
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