Technology

ARBOK-HS (Hydrogen Sulfide Capture & Conversion)

ARBOK-HS captures hydrogen sulfide (H₂S) from contaminated water streams and converts it into three valuable products at once — clean technical water, mineral sulfate salts, and a dry organic fuel substrate (DOS) — without heating, catalysts,…

Overview

ARBOK-HS captures hydrogen sulfide (H₂S) from contaminated water streams and converts it into three valuable products at once — clean technical water, mineral sulfate salts, and a dry organic fuel substrate (DOS) — without heating, catalysts, or disposable filters. It runs under deep vacuum at ambient temperature, using a single consumable (the proprietary Arbok-Trinity acid composition). It decouples cost from volume: the same $/m³ holds at 10× scale, turning an H₂S cost center into a profit center.

Applications

Primary use cases: H₂S-laden water from oil/gas wells, biogas digesters, wastewater treatment, and livestock operations.

Outputs/uses: clean technical water (irrigation, cooling, potable); ammonium/sodium sulfate (fertilizer commodity); DOS biosolid fuel (industrial/power).

Industries and users: oil & gas, biogas operators, utilities, agriculture.

Scale: 1 000–500 000 m³/year; 20–40 ft containerized.

Operating Principle

Under deep vacuum at ambient temperature, differential-volatility phase separation pulls H₂S and water apart: clean water condenses, sulfur is fixed (with the Arbok-Trinity reagent) into mineral sulfate salts, and the organic residue is dried to DOS fuel. No heating, catalysts, or disposable filters; zero H₂S emission.

Limitations: enclosed space needed in cold climates; Arbok-Trinity is the single consumable; product offtake.

Key Parameters

Conditions: deep vacuum, ambient temperature. Input H₂S: ~200 ppm. Energy: 1–3 kWh/tonne. Capture efficiency: 95–98 %; output purity >99.9 %; H₂S emissions 0 ppm; CO₂ <0.1 kg/tonne. Operating cost ~$0.54/m³.

Outputs per 1 000 m³/year input: clean water at 99.99 % recovery ($1.10–1.50/m³); mineral sulfate salts ~150 t ($240–310/t); DOS ~50 t (17–18 MJ/kg, $240–305/t).

Architecture and Components

Vacuum phase-separation chamber; Arbok-Trinity dosing; water condensation; salt crystallization; DOS drying; control system. Containerized (20–40 ft), 40–60 m² pad, no civil works; 2–4 weeks to operation; 15–20 year life.

Advantages

Technical: 1–3 kWh/tonne (vs 50–150); 95–98 % capture; no scaling penalty (same $/m³ at 10× volume); no toxic iron-sulfide or saturated-carbon waste.

Economic: net profit +$436 000–616 000/year at 1 000 m³/year baseline (vs −$80 000 to −$305 000 conventional); payback 3.4–5.7 years.

Environmental: zero H₂S emission, <0.1 kg CO₂/tonne; avoids air/water fines; ~19.2 t CO₂ avoided per installation.

Strategic: turns a global $12 billion/year H₂S cost into product revenue across oil/gas, biogas, wastewater, livestock.

Integrations

Deploys at wells, digesters, wastewater, and farms; pairs with ARBOK sulfur and ammonia units; products into fertilizer/fuel/water markets.

Deployment & Operation

Steps: stream assay → unit sizing → containerized install on pad → commissioning (2–4 weeks). Continuous, automated, minimal staffing; Arbok-Trinity resupply.

TRL

TRL 8 (confirmed by Michael). Production-ready with active pilot sites, on the validated ARBOK vacuum platform. Remaining to 9: sustained multi-site commercial operation.

Market Potential

Global H₂S treatment spend ~$12 billion/year (oil/gas in the Persian Gulf, Canada, Mexico; 15 000+ EU biogas plants; municipal wastewater; 1.5 billion cattle). At 10 % penetration: treatment cost $12B → $3B/year plus $8–10 billion/year in new product revenue.

Typical Project Economics

CAPEX $1.75–1.85 million (containerized); OPEX ~$18 740/year (electricity ~$240, Arbok-Trinity ~$3 500, maintenance/staff ~$15 000). EBITDA $281 000–498 000/year; payback 3.4–5.7 years. Revenue from water, sulfate salts, DOS, plus avoided fines and carbon credits.

Risk Factors

Arbok-Trinity reagent supply (single consumable); product offtake (salts/DOS); cold-climate enclosure; conservative adoption; field-reference scale-up.

Related Technologies

ARBOK-SULPHUR · ARBOK-DeSulph · ARBOK-VC (Vacuum Cracking) · Ammonia Trap