The HOPT Manifesto

1. The Problem

India’s industries have always carried the weight of progress — and now they carry the weight of carbon.
Every power plant, refinery, cement kiln, and steel mill faces the same question:
Where will the CO₂ go?

 

The Western model answers with tens of thousands of kilometers of high-pressure pipelines — each emitter locked into its own costly network of compressors, permits, and risk.
 

That model cannot work in India.
 

Our emitters are many, our land is crowded, and our ambition is larger than endless steel buried beneath it.

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2. The Breakthrough: A New Topology

 

We need a topology that liberates the emitter — not punishes it.

That topology is the Hub-Only Pipeline Topology (HOPT).

In HOPT, carbon dioxide is captured in solid form at multiple emitters within a cluster.
These solids are safely transported by truck or rail to a shared regional regeneration hub —no high-pressure pipelines required.

 

At the hub, the sorbent is thermally regenerated, releasing pure CO₂ gas for compression or utilization, and the regenerated sorbent is returned to the emitters for reuse.

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3. The Geometry of Freedom

Because only the hubs handle gaseous CO₂, pipelines exist only between hubs — not emitters. A nation that would have needed more than 30,000 km of CO₂ corridors now needs fewer than 12,000.

Over 4,000 potential compressor stations shrink to about 150.

This single geometric shift cuts infrastructure cost by over 50 % and, more importantly,
frees every emitter from the tyranny of the pipeline.

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Emitters capture carbon, store it safely in solid form, and move it like any other industrial good —without pressure, hazard, or dependency.

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“Only the hubs handle gas. Topology is destiny.”

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4. The Carbon Grid

The network created by HOPT becomes India’s Carbon Grid —
a national system of roughly 150 hubs linking thousands of emitters into one regenerative infrastructure.

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Like the Power Grid carries electricity and the Digital Grid carries data,
the Carbon Grid carries captured carbon — safely, efficiently, and inclusively.

This Grid converts CO₂ management from a private burden into a shared national service and transforms industrial isolation into coordinated decarbonization.

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5. The Vision

HOPT is not a gadget or a project.
It is a design for national freedom — a way for every industry to decarbonize without dependence on pipelines.
It redefines CCUS as public infrastructure, built from Indian ingenuity and powered by existing logistics.

We built digital rails for money.
Now we build physical grids for carbon — for industry, for economy, for planet.

 

Freedom for the Emitters. Connectivity for the Nation. Topology for the Planet.

 

Arnab Sinha
Inventor, Hub-Only Pipeline Topology (HOPT)