The document discusses alternatives to HCFC blowing agents for foam production. It summarizes mature technologies like hydrocarbons, HFCs, and CO2 that have limitations regarding cost, safety, or environmental impact. Emerging technologies are also presented, such as methyl formate, HFOs, and saturated HFCs that offer some improvements but require further development and commercialization. The overall message is an urgent need to phase out HCFCs due to environmental concerns while pursuing the most viable and sustainable alternative blowing agent options.
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Zero ODS Low GWS Eliminate HCFC with alternate By A K Singh
1. Zero ODS
Low GWS
Eliminate HCFC
with alternate
blowing agents
Processing issues and
challenges
for the foam sector
Presented by
Arun K Singh
3. Objectives
Phase out production
& consumption of
HCFC in accordance to
the Protocol Phase
out schedule
Stage 1
Achieving Montreal
protocol target stage 1
establishing base line
consumption
respectively
@ 10% reduction of
baseline volumes
from 2015
Phase out production
and consumption of
HCFC in accordance to
the protocol total
phase out schedule
2030
Stage II
Adhere to Stage II
Protocol reduction
target 2020 -2025 and
total phase out 2030
with a allowance on
servicing @ 2.5% from
2030 to 2040
Phase out HCFC like OSD/GWS
subsistence with the alternate
ZERO ODS/LOW GWS
6. Product
Overview
Insulating Foams
Construction
Transportation
Piping
Flexible foam
Shoe soles
Micro cellular
Integrals skinned
Spray Foam
Use of HCFC in Polyurethane
Foam
Role of the Blowing agent
Desired Characteristics
blowing agents
Available options to replace
HCFC
Mature technologies
Emerging Technologies
8. Awareness
Among stake
holders
Identification of the stake holders
Initiation of interaction with the
stakeholder at regional & divisional
level
Awareness to Stake holder over
environmental concerns due to HCFC
usage .
Ensuring Participation of Key stake
holders/ industries/ SMEs
/contractors /Associations/NGOs/
Research Institutions/ End
users/concern departments ,
Ministries etc.
Actions
9. Establishing
supply demand
Scenarios
Arrange awareness on HPMP work
shop
Reach Out to Stake Holder at
Divisional / Regional Level
Carry out surveys
Collection of Data on HCFC
Production & consumption
Establish over all Growth in volume
of HCFC consumption with respect
to National GDP & Economic
Growth.
Developing demand & supply
scenario
Actions
10. Regional
Specific Strategy
Division Specific Group need to formed
which includes Industries, Associations,
Users , Research institutes & all concern
Stake holders.
Identification of the applications
Division or sub -Division wise
Identified Division specific consumption
Their growth and freeze the volumes .
Assessment of the specific data of the
application
Evaluate the energy efficient economic
viable alternative Technology
Suggest Individual industry specific
viable Alternate
Actions
11. Data Collection
& Survey
Description of methodology for data collection &
validation of data(Name /address/
source/resources /stake holder involved in
consumption HCFC
Information on HCFC infrastructure
Importer/distributer/Consumer/end Users
Overall view on HCFC user
Their Production/Import/ Export
Their use and consumption
Forecast on HCFC volume with
respect to Regional Growth
Availability of alternate to HCFC with price
Actions
12. Role of the
blowing agents
Physical expansion
of the foam
-Generation of Co2 by iso with
water reaction
-Evaporation of external gases
(Blowing agents) with the
reaction of the PU System
Contribution to Thermal
performance
-forms close cell structure
remain into the cells
-Lowest Thermal conductivity
13. Thermal
Insulation
Properties
Overall reaction profile of foam
Cell size , Close cell %age,
Distribution (material flow) &
Orientation balances.
Composition of the cell gas
Initial lambda factor (thermal
efficiency)
Aging lambda factor (Age K value)
Compressive Strength
Density control of the foam
Processing / storage factors
Factors that influence
energy efficacy of
thermal insulation so
the design of the
products is critical
14. Blowing Agents
in Rigid PU
HCFC 141b ?
Hydrocarbons (pentanes )
Butanes
CO2
HFC
HFA-L1
HBA- 2
FEA-1100
HFO
Methyl Formate
Water
16. Concerns over
selection on
Alternate blowing
agents
Zero ODP & Low GWS
Easy Handling
Mechanical & Chemical Properties
Fire Retardency
Thermal & Aged Thermal Stability
Non Toxic
Technically Proven with commercially viable
alternate blowing agent
Technology
Reasonable Cost
Environmental acceptability
System durability
Energy Efficiency
Safety
Easy management for change
17. Ozone Depleting
Substances :
Their Remaining
challenges and
uncertainties
Key issues in Phasing out
HCFCs
Period of change over is short addressing all
reduction targets
30 to 40% reduction in consumption (2013
to 2015)
Technical options are still immerging may
not be the long term solutions
HFC look as main available option which
cater all application solutions but have high
GWS
Still has to find Zero ODP Zero GWS blowing
agent
Eliminate of 10,000 MT HCFC use in the
sector with the right substitute
Working adoption ,Equipments renewals
cost of changes .
Default substitute still (High
GWS) HFCs
Boiling point HFCs a issue at
high ambient conditions
Hydrocarbon are highly
flammables
Low GWP blowing agents
need to be promoted
18. Available Technologies
Water Cell Regulation Problem
Skin formation Problem
High Boiling point
Bonding issues
CO skin formation Problem
Foam flowbility Problem
Bonding Issues'
HFC Higher operating cost ,high
High GWP ,low boiling
Point
Pentene High Flammability issues
High Investing cost
Not feasible for SHEs
Methyl A patented Technology by
Formate Foam supplier
HFO Excellent lambda value &
other properties with a little
extra cost
19. Blowing agent
characteristics
Easy to use Solubility with Polyol
Down Trend Flammability
Smooth Rising Boiling Point
Foam Reaction cycle
Perfect Curing Should be tact free Foam
while de molding
De - Molding Cycle should complete
within allocated time
broadly independent
Mechanical Properties Enhance Mechanical /
Physical /Chemical values
Performance Gas thermal conductivity
through close cell wall
Enhance overall
performance of the Foam
Zero ODP
Low GWS
Low Toxicity
Chemically & Physically
Stable
Lower K values
Improve Energy efficiency
Batter Thermal stability
Proven & validated
Technology
Commercially available
Economically Viable
20. Mature
Technology
Most Popular blowing agent improving
performance day by day
K Value slightly better compare to
even HFCs
All Mechanical Properties are good
Flame Retardency slightly Poor to HCFC
but better to Cychlopentane
Medium Safety risk (Fire hazards)
No Capital investment cost ( storage
tank, Pre blend units, sensors ,Alarms/
leak detection systems, Ventilation
system and a core training need)
operating cost slightly higher (Current
Price is High for BA)
suitable for SMEs specially Foam spray
applications , Application of FJ
A
HFO
21. Mature
Technology
Favorable to Energy Efficiency
Good lower Lambda value
Non flammable so enhance fire
retandency
Low operating cost( No major
change in equipments or
technology)
BA cost is high
Mechanical Properties are excellent .
High GWP is a negative point
Protocol adherence
Low boiling point also not permit to
use this BA in high ambient Temp.
conditions
B
Saturated HFCs
22. Mature
Technology
Can be use as co blowing agent in all
formulations
Poor Lambda values K Value high
Poor Energy Efficiencies because off
Poor aging lambda value
Poor cell Structure Lower the close
cells
Adhesion issues due to Foam
friability
Poor density control high material
consumption high application
costing.
Use for Spray/ joint filling like
applications
C
CO from Water
23. New Technology
Molecular Weight 60
Boiling point C 31.3
Gas Thermal
conductivity
(Mw/Mk @ 25 C)
10.7
GWP(100 yr ITH) Negligible
Patented technology
with a minor retro fit
into the equipments
Now the cost is little high
10% higher to HCFC
D
Methyl Formate
Relative new BA
options
24. Other
Emerging
Technologies
Methylal HFO123
4-ze
FEA-
1100
HBA-2 AFA-L1
Chemical
Formula
CHOCHOCH Trans-CF-
CH=CHF
Undisclosed Undisclosed Undisclosed
Molecular
Weight
76.1 114 undisclosed Undisclosed undisclosed
Boiling
Points 甦C
42 -19 >25 >32 >30
Gas
Conductivity
(mW/mK@
10 甦 C)
Not Disclosed 13.0 10.7 Yet to know 15.9
Flammable
limit in air
2.2 to
19.9
None to
28
None None None
GWP in 100
years
horizon
<25 6 5 <15 <15
ODS Zero Zero Zero Zero Zero
E
Other
Emerging
options
25. Initial summery
on Emerging BA
Methylal
- Use as co- blowing agent with hydrocarbons & HFCs
- Major Pilot Trails having encouraging results
Saturated HFCs
- Most are liquid at room temperature
- Thermal performance very promising results
- High operating cost
- Liquid HFCs will be commercially available in2 to 3
Years Time
Findings
26. Summary
All Mature Technologies have restriction
at Risk , safety cost & performance
HFO
Hydrocarbons although most popular
technology but required high capital
investments carry the risk can not be
use in Spray foam application
Methyl Formate Becoming established
in Integral skinned Foam, Commercial
Refrigerators, Thermo wares, sandwich
panels
HFCs Having higher operating cost with
high GWS
CO2 High Lambda Value Skin problem
乏 New Technologies of BA, HCFs under
developments
乏 Time of essence Lets aware about
serious Environmental concerns , lets
freeze the volume use of HCFC s