688
A. Filzwieser et al.
Non-flammable
When comparing the ionic liquid with thermal oils, as an example of an alternative
cooling medium, in particular the different characteristic at high temperatures has
to be emphasized. Some thermal oils are defined as non-flammable. However, once
the oil temperature reaches and exceeds its ignition temperature, it starts to burn,
and burning cannot be stopped even when the heat source is removed. This is in
stark contrast to the behaviour of IL-B2001. Once the heat source is removed, the
decomposition stops immediately.
Non-toxic, Not Harmful
Since the ionic liquid is used at industrial scale in plants, an uncomplicated handling
and simultaneously guaranteeing health and safety of the operators are strongly
desired. In this context, all the information is collected and described in the manual
as well as the technical and safety data sheets and can be summarized as follows. The
ionic liquid is REACH certified (registration number 01-2120086816-43-0000) and
has a CAS number (143314-16-3). It is classified as a non-dangerous good and can
be stored and transported without any special restrictions except preventing contact
with water and open atmosphere. It shall not be classified as acutely toxic, the hazard
class and category is 2, meaning skin irritating.
IL-B2001 shall not be classified as hazardous to the aquatic environment, but it
is not biodegradable.
Broad Operation Temperature Range
The operation temperature is 50–200 °C, and hence, the temperature difference
between inlet and outlet temperature of up to 150 °C is advantageous in terms of
heat recovery as well as operational practice.
Cooling within this temperature range enables an adjustable intensity of cooling.
A higher cooling element temperature can prevent the condensation of water vapour
and, as a direct consequence, can minimize the risk of refractory hydration during
heating up or due to leakages. Furthermore, a sufficiently high cooling element
surface temperature avoids the formation of condensed corrosive compounds and
dew point corrosion, respectively.
The fact that the IL-B2001 allows an outlet temperature of up to 200 °C makes
the process suitable to be combined with a heat recovery system for direct usage or
power generation under feasible conditions. This high absolute temperature and the
extensive temperature range permit a heat recovery in an efficient way rather than
being lost (creating steam instead of warm water). In case of continuously provided
heat, the possibility of heat recovery through an Organic Rankine Circle (ORC)
A. Filzwieser et al.
Non-flammable
When comparing the ionic liquid with thermal oils, as an example of an alternative
cooling medium, in particular the different characteristic at high temperatures has
to be emphasized. Some thermal oils are defined as non-flammable. However, once
the oil temperature reaches and exceeds its ignition temperature, it starts to burn,
and burning cannot be stopped even when the heat source is removed. This is in
stark contrast to the behaviour of IL-B2001. Once the heat source is removed, the
decomposition stops immediately.
Non-toxic, Not Harmful
Since the ionic liquid is used at industrial scale in plants, an uncomplicated handling
and simultaneously guaranteeing health and safety of the operators are strongly
desired. In this context, all the information is collected and described in the manual
as well as the technical and safety data sheets and can be summarized as follows. The
ionic liquid is REACH certified (registration number 01-2120086816-43-0000) and
has a CAS number (143314-16-3). It is classified as a non-dangerous good and can
be stored and transported without any special restrictions except preventing contact
with water and open atmosphere. It shall not be classified as acutely toxic, the hazard
class and category is 2, meaning skin irritating.
IL-B2001 shall not be classified as hazardous to the aquatic environment, but it
is not biodegradable.
Broad Operation Temperature Range
The operation temperature is 50–200 °C, and hence, the temperature difference
between inlet and outlet temperature of up to 150 °C is advantageous in terms of
heat recovery as well as operational practice.
Cooling within this temperature range enables an adjustable intensity of cooling.
A higher cooling element temperature can prevent the condensation of water vapour
and, as a direct consequence, can minimize the risk of refractory hydration during
heating up or due to leakages. Furthermore, a sufficiently high cooling element
surface temperature avoids the formation of condensed corrosive compounds and
dew point corrosion, respectively.
The fact that the IL-B2001 allows an outlet temperature of up to 200 °C makes
the process suitable to be combined with a heat recovery system for direct usage or
power generation under feasible conditions. This high absolute temperature and the
extensive temperature range permit a heat recovery in an efficient way rather than
being lost (creating steam instead of warm water). In case of continuously provided
heat, the possibility of heat recovery through an Organic Rankine Circle (ORC)