Shipboard Processing — At-Sea Proof & PAWDS
Shipboard & At-Sea Processing — Proof It Can Work on Water
The single most important finding in this research: plasma waste processing already operates at sea on US Navy aircraft carriers, and two organizations are already building ships to do exactly what The Claw proposes.
PyroGenesis PAWDS — Plasma on an Aircraft Carrier ★
PAWDS = Plasma Arc Waste Destruction System
This is the strongest existence proof for The Claw's concept. A plasma waste processing system that operates at sea, on a moving warship, in combat conditions.
Specifications
| Metric | Value |
|---|---|
| Ships equipped | Gerald R. Ford-class supercarriers |
| Units delivered | 4 PAWDS systems |
| Specific ships | CVN-78 USS Gerald R. Ford, CVN-79 USS John F. Kennedy |
| Processing capacity | 200 kg/hour (~400+ lbs/hour, ~4.8 TPD) |
| Temperature | Over 5,000°C |
| Waste types | Paper, plastics, food, oily rags — minimal segregation required |
| Optional module | Waste oil processing |
| Startup | One-button rapid start-up and shutdown |
| Stealth | No visible plume or heat signature (military requirement) |
| Certification | Lloyd's Register MED Type Approval (solid waste + sludge oil) |
| Maiden deployment | October 2022 (USS Gerald R. Ford set sail) |
| Specified into | ALL future Gerald R. Ford-class supercarriers |
How It Works
1. Waste fed to shredder (handles mixed waste, no sorting needed) 2. Shredder output goes to mill (converts to powder/lint) 3. Powder fed into plasma-fired eductor and chamber 4. Plasma destroys all organic material at 5,000°C+ 5. Output: inert residue + clean exhaustKey Design Features
- No refractory/brick materials — major advantage over traditional incinerators (lighter, less maintenance)
- Scalable — designed to scale UP for cruise ships and DOWN for frigates/destroyers
- Proven at sea — operational on active duty warship since October 2022
What This Means for The Claw
1. Plasma at sea is proven. Not theoretical. Not a lab test. Operating on a $13 billion warship. 2. PyroGenesis already makes marine-rated plasma torches. No need to reinvent. 3. The Navy solved the shredding problem — mixed waste, no sorting, one-button operation. 4. PAWDS processes 4.8 TPD on a MOVING warship. A STATIONARY platform is easier. 5. Military-grade reliability — if it works for the US Navy, it works.PyroGenesis is the torch supplier for The Claw. Period.
SeaChange Ocean Solutions — The Closest Existing Project ★
California-based nonprofit partnered with InEnTec to deploy mobile PEM (Plasma Enhanced Melter) on a ship.
The Plan
1. First vessel processes 2 TPD of plastic at sea 2. Plastic heated to nearly 10,000°C (surface-of-the-sun temperature) 3. Vaporized and broken down into molecular components 4. Outputs: hydrogen-rich syngas (powers the operation) + inert glass (safe to release into ocean) 5. Scale to land-based PEM systems processing 125 TPDTarget Areas
- Remote island locations lacking waste infrastructure
- Developing nations
- Regions near the ten major rivers responsible for 90% of ocean plastic input
Status
- Partnership with InEnTec established
- Vessel design underway
- Pre-operational (as of last available information)
What This Means for The Claw
SeaChange is attempting THE EXACT SAME CONCEPT: plasma gasification of ocean plastic at sea, self-powered by syngas. The difference: SeaChange is a mobile ship that moves to the plastic. The Claw is a stationary station that plastic is brought to.Potential collaboration/merger opportunity? Or competitor to watch?
Ocean Saviour Vessel — The Big Blue Ocean Cleanup
The Design
- 70-meter tri-deck cleanup vessel
- Designed to be self-powering using plasma gasification
- Manta Collector Array systems at sides and front draw in plastics
- Onboard conveyor chops and mills plastic
- Fed into onboard plasma gasification facility
- Syngas fuels the vessel itself
Technology Source
- Plasma technology derived from PyroGenesis PAWDS — the same system on the USS Gerald R. Ford
- PyroGenesis providing the torch technology
Status
- Design phase
- Pre-construction
What This Means
Another organization building a self-powered plasma-processing ocean cleanup vessel. The concept is convergent — multiple groups independently arriving at the same solution.Traditional Shipboard Incineration (Context)
Current State
- Most commercial ships use MARPOL Annex VI compliant batch-loaded incinerators
- US Navy legacy: ~30 ships still use sludge incinerators based on 1950s technology
- IMO MEPC 76(40) sets standards for shipboard incineration
- Regulation 16 of MARPOL Annex VI
What's Prohibited
Cannot incinerate:- Cargo residues under MARPOL Annexes I-III
- PCBs
- Garbage containing heavy metals
Limitations
- Batch processing (not continuous)
- Requires waste segregation
- Produces ash requiring disposal
- Lower temperatures — doesn't destroy all toxins
- Air emissions (NOx, SOx, particulates)
Other At-Sea Concepts
Self-Sustaining Ocean Cleanup (Siskowet Enterprises)
- Battery-powered autonomous drones sweep up plastic, return to a "mother ship"
- Plastic converted to electricity via high-efficiency waste-to-energy incineration on mother ship
- Incineration, not plasma — less clean but potentially simpler
PEAT International (Taiwan)
- Built facility at National Cheng Kung University, Tainan
- Processes 3-5 metric TPD of incinerator fly ash, medical waste, organic industrial waste
- Proprietary Plasma Thermal Destruction Recovery method
- Not marine-deployed but proves small-scale plasma processing
The Convergence Pattern
| Project | Approach | Plasma? | Self-Powered? | At Sea? | Status |
|---|---|---|---|---|---|
| PAWDS (US Navy) | Waste destruction on carrier | YES | No (carrier powered) | YES ★ | Operational since 2022 |
| SeaChange + InEnTec | Mobile ship, PEM processing | YES | YES (syngas) | YES | Pre-operational |
| Ocean Saviour | 70m vessel, collection + processing | YES (PyroGenesis) | YES (syngas) | YES | Design phase |
| The Claw (proposed) | Stationary platform, collection feeds in | YES | YES (syngas) | YES | Concept |
| Siskowet | Drones + mother ship | No (incineration) | YES (WtE) | YES | Concept |
Implications for The Claw
What's Already Proven
- Plasma at sea works (PAWDS, 2022)
- Marine-rated plasma torches exist (PyroGenesis APT-HP)
- Shredding mixed waste on a ship works (PAWDS)
- The concept of self-powered ocean plastic processing is independently validated by multiple groups
What Remains Unproven
- Stationary platform vs. mobile vessel (different engineering challenges)
- Energy balance with actual ocean plastic feedstock (vs. ship waste)
- Scale beyond 5 TPD at sea
- Continuous (not batch) processing of ocean debris specifically
- Tangled fishing net shredding in marine conditions
Strategic Questions
1. Partner with SeaChange/InEnTec? They have the PEM tech and are already doing this. 2. License PyroGenesis PAWDS? They have the military-proven marine torch. 3. Compete independently? More expensive, slower, but full control. 4. Hybrid? Use InEnTec PEM + PyroGenesis torches + our own platform design.Recommendation: Reach out to both InEnTec and PyroGenesis. They want this technology deployed. We want to deploy it. The conversation should be natural.