CARBOTURA

Technical Assessment Response
Carbotura, Inc. — Confidential under NDA

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Strictly Confidential · Under NDA

Section 2 · Question 2
the counterparty's question
“What are the exact ratios of plastics, tires, or other high-hydrogen feedstocks needed to maintain "Island Mode" if the primary waste stream is low in organics?”
Response
Van Krevelen · H:C vs O:C · Feedstock envelope

Feedstocks plotted by hydrogen-to-carbon and oxygen-to-carbon atomic ratios. Higher on the vertical axis = more hydrogen per carbon (better for H2 yield); further left = less oxygen (higher calorific value). Fossil-fuel reference regions (shaded, dashed) show where refined hydrocarbons sit. The Upgradation of MSW arrow indicates the direction the ACM process moves feedstock — up (higher H:C) and left (lower O:C) — toward hydrocarbon-product space. Plastics and rubber sit near the top-left (high H:C, low O:C) which is why they act as effective hydrogen-bearing augments for hydrogen-lean primary streams. Hover any point for the exact ratios.

When primary feedstock streams are hydrogen-poor (e.g. high-ash MSW, wet biomass), the ACM platform maintains net-positive energy balance ("Island Mode") through calibrated addition of hydrogen-bearing augments — typically sorted plastic fractions or tire-derived material (TDM). This is a design mechanism, not a workaround; augment integration is engineered into every deployment as a standing option per feedstock class.

Engineering Detail

Typical augment integration ranges:

  • Hydrogen-adequate primary feedstocks (industrial hydrocarbon residues, plastics-heavy MSW): 0% augment required.
  • Hydrogen-lean primary feedstocks (wet MSW, biomass, low-plastic municipal streams): 5–20% augment by mass.
  • Augment types: sorted PE/PP plastic pellets, TDM (tire-derived material granulate), waste polymer streams.
  • Augment source: preferentially from within the same feedstock catchment (circular by design).
  • Control: real-time via CAFI Digital Triplet monitoring; augment ratio adjusted per shift based on inbound feedstock chemistry.

Exact target ratios per feedstock scenario and the augment-selection algorithm are Carbotura proprietary.

Section 2 · Question 3
the counterparty's question
“What specific chemical reagents, catalysts, or additives are required for the treatment process, and in what quantities?”
Response

Important framing on the MCR “catalyst”. The Regenesis™ MCR (microwave catalytic reforming process) does not use a bespoke named catalyst. Instead, WTE ash, coal ash, or Carbotura's own recirculated bottom solids act as a microwave susceptor in the reactor bed — the mineral matrix absorbs microwave energy and induces chaotic disintegration across the feedstock, breaking bonds broadly rather than performing selective molecular cracking to a bespoke product. This is a fundamental difference in reactor doctrine from conventional catalytic pyrolysis. The susceptor stream is internally recirculated; no external catalyst procurement is required at the MCR. Named catalysts (Fe/Cr for the CO Water-Gas-Shift module; zeolite 5A + activated carbon for PSA) apply to downstream unit operations only, where their selective function is engineered. Note: the CRSCU (main plasma cracker) operates with no catalyst at 1,300–1,800 °C.

The ACM process is characterized by very low external reagent consumption. What conventional pyrolysis-cleanup diagrams show as continuous “reagent inputs” is, in the ACM architecture, largely handled by five built-in mechanisms:

  1. Susceptor (in-reactor): WTE ash / coal ash / recirculated OmniCrude™ mineral phase act as the microwave susceptor in the Regenesis™ MCR — recirculated on-site, no external procurement. Not a bespoke catalyst (see MCR framing note above / Section 1 Q4).
  2. Feedstock-borne contaminants → captured as salts in the water train: chlorine, sulfur and nitrogen species in the feedstock are captured downstream and leave the site as ~50.7 kg/h salt cake product (NH4Cl, (NH4)2S; see Section 4 Q12). These are not reagents added, but contaminants routed to a product boundary.
  3. Initial catalyst inventories: Fe/Cr (CO Water-Gas-Shift), zeolite 5A + activated carbon (PSA), sulfur / chloride / siloxane guard beds. The CRSCU plasma cracker operates with no catalyst. Installed once, replaced on catalyst-life cycles (years) — not continuous consumables. Vendor-dependent.
  4. Fuel-cell operating consumables: DI water for the PEM PowerBlock is internally generated from the water plant (~103 kg/h purified water product); no external DI make-up required.
  5. Sub-process reagents (Regenesis MAX™ subsystems): H2SO4 (non-ferrous hydromet leach, ~60 °C), solvent-extraction reagents (SX; closed-loop with make-up), aromatics distillation solvent (closed-loop recovery). External make-up rates are vendor-dependent and vary with metals throughput.
Self-produced consumables + closed-loop chemical recycling. Two further reductions to external reagent dependency:
  • Activated carbon is self-produced. The activated carbon used in PSA beds and sulfur / chloride / siloxane guard beds is produced on-site by Carbon MAX Processing Train from OmniCrude™ carbon phase (module MAX-CRB-003 · Activation Processing). No external activated-carbon procurement is required for normal operation — the plant makes its own consumables from its own feedstock stream.
  • All process chemicals are recycled in closed loops. H2SO4 in the non-ferrous hydromet leach, solvent-extraction reagents in SX, aromatics distillation solvent, and water-treatment conditioning chemistry all operate on closed-loop recovery with only trace makeup. Steam, N2, PSA tail-gas, plasma-N2 and inerts/susceptor also close within the plant (per Section 1 Q2). External reagent makeup at steady state is a small fraction of what a linear once-through process would consume.

All chemical inventories are HAZMAT-classified per the host jurisdiction; MSDS are supplied per the national environmental regulator's and the national waste-management regulation's requirements.

Engineering Detail

Reagent / catalyst / additive inventory (not continuous consumption rate). Most entries below are installed inventories (multi-year catalyst life) or closed-loop reagents with makeup. The only continuous "chemistry" flow is the feedstock-borne Cl / S / N leaving as salt cake product (~50.7 kg/h; see Section 4 Q12) — that is not a reagent input, it is a product output.

  • Gas cleanup: sulfur guard bed adsorbent; COS hydrolysis catalyst; dechlorination polish medium; activated carbon polish; particulate filtration media — all commercially available industrial materials.
  • Fuel cell operation: deionized water (< 1 µS/cm); membrane humidification additives; coolant loop conditioners.
  • Process reagents (Regenesis™ / MAX™): proprietary conditioning agents; volumetric usage < 3% of feedstock throughput by mass; commercially procurable substrate materials with proprietary formulation overlay.
  • Emergency response: standard neutralization reagents per HAZMAT classification.

Confirmed exclusions: no radioactive materials; no cyanide chemistry; no molten-salt reagents; no high-hazard combination handling.

Beyond this response

Beyond the design-basis engineering disclosed in this Assessment, additional proprietary internals of the ACM engineering model — measured material dielectric properties, dielectric-property library, tuning parameters, specific catalyst formulations beyond generic type names, precise reagent dosing schedules, and other restricted design internals — remain trade secrets of Carbotura, Inc. and are not disclosed at any stage of the counterparty's diligence, term-sheet execution, Cornerstone Round commitment, or subsequent commercial operation. Verification of the disclosed design basis proceeds through independent third-party review under NDA, OEM guarantees, ASI System Integration Testing (SIT), commissioning, continuous emissions monitoring (CEMS), and CAFI Digital Triplet post-COD performance data. Disclosure level here is partner-safe; proprietary internals restricted in the source engineering system are excluded.