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by Kannan Piedy
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Report: Untitled
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Report: Untitled
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PGPBM 2023 – 2025
Business Sustainability: For People, Plant and Profit
To Prof. Ashok A Prasad
By
Kannan Piedy 2303016
Q1. What would be your suggestions to Puneet Dalmia and Mahendra Singhi to
achieve the carbon-negative goal by 2040?
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There are 6 major points where they can focus on to achieve their goal of being
carbon-negative by 2040.
Accelerating their R&D and collaboration on carbon capture technology
Since more than 50% of emissions are coming from limestone calcination, we
will have to capture carbon and it is non-negotiable. We will have to build pilot
projects with tech partners for this.
We must evaluate both sequestration and utilization (CCS and CCU) to find
most profitable routes like mineralizing co2 or converting it into other useful
chemicals that can be reused.
Maximise their focus on clinker substitution
We must continue pushing for blended cements and expand new cement
categories like LC3. By collaborating with power and steel plants, we can
secure adequate fly ash, slag and other supplementary cementitious materials.
We must also lobby with regulators for acceptance of low-clinker cements.
Scale up their use of alternate fuels
We must work with local municipalities into processing non-recyclable waste
into refuse-derived fuels for cement kilns. We need to secure new source of
biomass like bamboo , rice husk and municipal waste .
Invest into renewables and waste heat recovery systems
We need to expand solar and wind capacity usages from the current pipeline of
8MW + 90MW, we should enforce each plant to have local renewable
integration.
By enforcing a full-on integration of WHRS at all plants we can reduce
electricity usage from fossil fuels.
Increase internal carbon pricing to convince stakeholders
We must increase internal carbon price so that we can prioritize the
investments mentioned above so that it will appear cheaper as compared to
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the cost of CO2.
Policy Advocacy
By working with government on subsidies and supportive policy frameworks
like tax credits PLI-like incentives for carbon capture we can make this a bit
easier.
We also need to engage with real-estate developers, contractors and customers
for acceptance of blended cements while also considering the cost of change
process. This will help accelerate the phaseout of the high CO2 OPC.
Q2. Which of the four strategies looks promising and why?
Of the 4 provided strategies, the one with the maximum impact is the carbon
sequestration technologies as this addresses potentially the largest chunk of
cement emissions. Although this is currently expensive and is in the pilot
phase, investing in this R&D would ensure a high-impact, long-term solution
that is not just greenwashing and is, hence, necessary for decarbonization. The
goal is not to just reduce but to be carbon neutral and therefore half-way
efforts might not be entirely beneficial, and we'll have to address the elephant
in the room at some point (The process emissions and unavoidable calcination
process)
Q3. What are the other initiatives that could be considered?
Some of the other initiatives that can also be considered are to consider
replacing fossil fuels with hydrogen in the long run as it is looking to be a new
alternative with minimal carbon footprint although there is a water footprint
involved. We can also consider the earlier mentioned option of RDF (refuse-
driven fuels), where we can collaborate with local municipalities to gather it for
usage and expand on the symbiotic relationship between industries to allow for
synergy-based reduction through byproduct consumption.
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1. therefore, Punctuation in compound/complex sentences Correctness
2. Tone suggestions Delivery
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