HP March 2022 eBook—Energy Transition - 60

Hydrogen
transportable H2
that could then be transported
by LOHC for use in clean power
generation at another desired location. In
this case, it is further demonstrated that
having dehydrogenation adjacent to the
SOFC makes possible efficient heat integration
between the fuel cell, which generates
waste heat, and the endothermic
dehydrogenation plant.
Hydrogen fueling stations. An additional
demo project funded by NEDO
targeted the use of LOHC to transport
H2
for use in distributed fueling stations.
These stations could service passenger
FCEVs or even larger fuel cells used in
heavy-duty trucks or other large transport
vehicles. For this study, a small-scale,
packaged dehydrogenation facility was
developed for testing (FIG. 11). In the process
flow, methylcyclohexane from storage
is dehydrogenated in the compact
recovery plant, and then recovered H2
is
purified to meet fuel cell specifications
before being compressed to approximately
700 bar prior to use.
Pathway to commercialization. The
hydrogen processa
produced remotely was transported
technology, having
been proven at both the pilot and demo
scale, was deemed ready for commercial
roll-out. In the Kawasaki demonstration,
H2
via LOHC over 5,000 km and ultimately
consumed in a gas turbine used for generating
electric power. The demo plant's capacity
of 210 metric tpy was simply a capacity
of convenience-i.e., large enough
to prove the capabilities of the supply
chain while limiting the initial investment.
Much larger and more ambitious
transport programs have already been
evaluated; these vary in size according to
the specifics of the various applications.
The next step, envisioned for the 2025-
2026 time frame, provides for utilization
in mobility and industrial applications,
along with gas turbine consumption of
clean-burning H2
of up to 30% in the fuel.
Plans for this second chain provide for up
to 1 BNm3
/yr of H2 (90,000 metric t).
By 2030, up to 3.3 BNm3
/yr of H2
utilization is planned. This volume is
equivalent to 300,000 metric tpy, according
to Japan's Hydrogen Strategy outlined
in 2017. In addition, Japan announced a
target to introduce 3 metric MMtpy of H2
use by 2030, as per the Ministry of Economy,
Trade and Industry's " Green growth
strategy towards 2050 carbon neutrality, "
released in December 2020. Significant
H2
acceleration and volume increase is
expected to meet this target (FIG. 12).
Future applications consider greatly
expanded mobility uses both in the form
of private and public transport, accelerated
use in materials and goods movement
both at ports and in long-haul overland
FIG. 10. Small-scale power-to-gas demonstration project in Yokohama, Japan.
FIG. 11. Small-scale dehydrogenation facility developed for H2
fueling demonstration project.
FIG. 12. Pathway to commercialization for the trademarked hydrogen technology.a
Hydrocarbon Processing | AUGUST 2021 | HydrocarbonProcessing.com
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HP March 2022 eBook—Energy Transition

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