"What is TCG technology?"

"TCG (Thermochemical Closed-loop Gasification) is a proprietary waste-to-energy technology that converts carbonaceous materials including MSW, biomass, tyres, plastics, agricultural residues, and fossil energy carriers into clean synthesis gas through a closed-system thermochemical process. The technology was declared \"Best Available Technology\" by the US Department of Energy.\n"

"What is the energetic efficiency of TCG gasification?"

"The energetic efficiency of the gasification unit is above 80%, as verified by tests conducted at the Colorado School of Mines and reports issued to the US Department of Energy.\n"

"What is the carbon conversion ratio?"

"The Carbon Conversion Ratio is 99.96%, as verified by the US Department of Energy. This means nearly all carbon in the feed material is converted into usable synthesis gas rather than waste.\n"

"Does the system produce emissions?"

"The TCG gasification unit has no chimney or other exit to the environment — it is a completely closed system. The total emission of the entire plant is between 5% and 40% of the emission of a traditional power plant, depending upon the feed material and the end product. The gaseous emission reduction is between 5%-40% depending upon the end product.\n"

"What is the classification of the ash residue?"

"The ash residue produced by the TCG gasification process is classified as environmentally neutral, as verified by tests conducted by the Colorado Environment Agency and Ohio Environment Agency.\n"

"What materials can be processed by TCG technology?"

"The TCG gasification system can process any carbonaceous materials including: Municipal Solid Waste (MSW), biomass (sawdust, rice hulls, energy grass, algae), agricultural and forestry residues, used tyres, plastics, coal (lignite, brown coal, black coal), oil refinery residues, petroleum coke, slaughter house waste, dead animals, invasive plants (water lily, seaweed), and other organic waste materials.\n"

"What end products can be generated?"

"The TCG technology can produce multiple end products depending on configuration: electricity via gas turbine generator sets (G2E/GenSet), liquid hydrocarbons including green/blue fuels via Fischer-Tropsch liquefaction (G2L), hydrogen via the Pure Hydrogen Generator Unit (PHU/W2H), and thermal energy via heat exchangers (HEEX).\n"

"What certifications and evaluations support TCG technology?"

"The technology was evaluated by TSS Consultants across five categories (economic viability, energy efficiency, environmental compatibility, RDD\u0026D evaluation stages, and socio-political effectiveness) and ranked first place as \"Best Available Technology\" by the US Department of Energy in a confidential report to the Senate. The technology was also declared \"Strategic Technology\" by the US Government.\n"

"How does TCG technology compare to traditional incineration?"

"Unlike traditional incineration, TCG is a closed system with no chimney. It does not burn waste but thermally degrades it in an oxygen-deficient environment. The emission reduction is 5%-40% compared to traditional power plants, and the process can be adjusted to produce different qualities of syngas depending on the desired end product.\n"

"What is the difference between TCG and conventional pyrolysis?"

"Unlike conventional pyrolysis where the process simply happens and operators cannot control the quality of the output syngas, the TCG gasification unit can be precisely adjusted by changing pressure, temperature, and humidity to produce the optimal gas composition for the desired end product. The entire process control system is managed by an industrial computer with over 100 sensors monitoring temperature, pressure, and moisture content.\n"

Utilization of Pure Hydrogen Produced by the W2E Plant Hydrogen Recovery System

Executive Summary

The Waste-to-Energy (W2E) Power Plant incorporates a hydrogen recovery subsystem capable of producing high-purity hydrogen (H₂) from the synthesis gas generated by the thermochemical gasification process. Hydrogen is one of the most versatile energy carriers and industrial feedstocks available today. However, because of its low volumetric energy density and demanding storage requirements, direct storage of gaseous hydrogen is not always the most economical or practical solution.

Instead, the hydrogen can be converted into more stable, higher-density energy carriers or valuable chemical products that are easier to transport, store, and utilize. Furthermore, flexible hydrogen utilization enables the W2E plant to maximize profitability by adapting production to electricity market conditions. During periods of low or even negative electricity prices—typically when large amounts of solar and wind energy are available—the recovered hydrogen can be redirected from electricity generation to higher-value products.

Direct Hydrogen Applications

When market conditions are favorable, purified hydrogen can be supplied directly for:

Fuel cell power generation
Green hydrogen refueling stations
Industrial hydrogen consumers
Steel production (Direct Reduced Iron)
Glass manufacturing
Chemical industries
Semiconductor manufacturing
Hydrogen-powered heavy transport
Marine fuel applications
Aviation fuel development

Hydrogen is increasingly recognized as a strategic industrial raw material in the global transition toward low-carbon energy systems.

Hydrogen Storage Through Chemical Energy Carriers

Rather than storing compressed hydrogen gas, the W2E plant can convert hydrogen into safer, denser, and more easily transportable compounds.

Ammonia (NH₃)

Hydrogen reacts with nitrogen from the air via the Haber-Bosch process to produce ammonia.

Advantages include: • High hydrogen storage density • Easy transportation using existing infrastructure • Long-term storage without significant energy losses • Carbon-free fuel for shipping and power generation • Fertilizer production • Feedstock for chemical industries

Ammonia is considered one of the world’s most promising hydrogen carriers because it contains approximately 17.6% hydrogen by weight and can be converted back into hydrogen when required.

Liquid Organic Hydrogen Carriers (LOHC)

Hydrogen can also be chemically stored in liquid organic compounds.

Advantages include: • Liquid at ambient conditions • Existing fuel logistics infrastructure can be utilized • Safe transportation • Long-term storage • Reversible hydrogen release

LOHC technology is becoming increasingly attractive for international hydrogen transport.

Methanol

Hydrogen combined with captured carbon dioxide produces green methanol.

Applications include: • Marine fuel • Chemical feedstock • Fuel blending • Synthetic gasoline production • Fuel cells

Methanol is significantly easier to handle than compressed hydrogen while providing a versatile renewable fuel.

Production of Synthetic Liquid Hydrocarbons

During periods of low electricity prices, hydrogen can be combined with carbon monoxide or captured carbon dioxide through Fischer-Tropsch synthesis or methanol-to-fuels processes to produce:

Synthetic diesel
Sustainable aviation fuel (SAF)
Synthetic gasoline
Synthetic kerosene
Waxes
Lubricants

These products are compatible with existing engines, pipelines, storage tanks, and transportation infrastructure.

Instead of selling electricity at low or even negative market prices, converting hydrogen into liquid fuels enables significantly higher value creation and long-term energy storage.

Green Ammonia Production

A dedicated ammonia synthesis unit enables the W2E facility to manufacture:

Carbon-free fertilizer
Export commodity
Marine fuel
Seasonal energy storage medium

Global demand for green ammonia is expected to increase substantially as agriculture and maritime transport decarbonize.

Industrial Hydrogen Supply

Hydrogen can be marketed directly to industries such as:

Refineries
Petrochemical plants
Electronics manufacturing
Food processing
Pharmaceutical production
Glass manufacturing
Metal processing

Long-term industrial supply contracts can provide a stable revenue stream independent of electricity market volatility.

Grid Balancing and Energy Storage

Hydrogen production provides an effective means of balancing renewable electricity generation. During periods of:

Low electricity prices
Negative electricity prices
Excess renewable generation
Grid congestion

the W2E plant can reduce electricity exports and instead divert energy to hydrogen production and downstream conversion processes.

This transforms surplus electricity into valuable products while enhancing grid stability.

Drinking Water Production

Hydrogen also offers an innovative pathway for water production. By reacting hydrogen with oxygen under controlled conditions, high-purity water is produced according to the reaction:

2H₂ + O₂ → 2H₂O + Energy

The resulting water is extremely pure and, after appropriate mineralization and treatment to meet drinking water standards, can be used as potable water.

This concept becomes particularly attractive when:

Electricity prices are very low or negative.
Renewable electricity is abundant.
Water scarcity limits regional development.
Freshwater resources become increasingly valuable.

In arid regions, where reliable freshwater supplies are limited, hydrogen-derived water can complement desalination and conventional water sources. Although producing drinking water directly from hydrogen is generally more energy-intensive and less economical than treating available freshwater or seawater, it may become a valuable niche solution where renewable electricity is inexpensive and water availability is the primary constraint.

Flexible Production Strategy

The W2E plant can operate as an integrated multi-product energy hub by dynamically allocating hydrogen to the highest-value application depending on market conditions.

Possible operating modes include:

Market Condition	Preferred Hydrogen Utilization
High electricity prices	Electricity generation
Moderate electricity prices	Hydrogen sales
High hydrogen demand	Industrial hydrogen supply
High fertilizer demand	Green ammonia production
High synthetic fuel demand	Fischer-Tropsch liquid fuels
Low or negative electricity prices	Hydrogen production and chemical conversion
Water scarcity regions	High-purity water production (where economically justified)

Strategic Advantages

The integrated hydrogen utilization concept provides numerous long-term benefits:

Diversified revenue streams.
Reduced dependence on volatile electricity markets.
Seasonal energy storage capability.
Production of high-value synthetic fuels and chemicals.
Support for renewable energy integration.
Improved overall plant economics.
Lower greenhouse gas emissions.
Enhanced energy security.
Greater operational flexibility.
Future-proof adaptation to evolving hydrogen and carbon-neutral fuel markets.

Conclusion

The hydrogen recovery subsystem transforms the Waste-to-Energy plant into a flexible, integrated energy and chemical production facility rather than a conventional power plant. Instead of relying solely on electricity sales, the facility can convert hydrogen into a portfolio of high-value products—including green hydrogen, ammonia, methanol, synthetic hydrocarbons, industrial feedstocks, and, in specialized applications, high-purity water.

This operational flexibility allows the plant to respond dynamically to changing market conditions, maximizing economic returns while supporting the transition to a low-carbon, circular economy. By producing energy, fuels, chemicals, and potentially water from a single renewable resource stream, the W2E plant becomes a resilient and sustainable industrial hub capable of meeting future energy, environmental, and resource challenges.

W2H HydroTech