S2: Continuous Carbonization & Char-Gas Co-generation Solution

Our continuous carbonization system converts biomass and organic waste into high-quality biochar while simultaneously generating combustible syngas for power co-generation. The char-gas co-generation process achieves complete thermal energy circulation — the heat released during carbonization is captured and reused, dramatically improving overall energy efficiency.

Carbon accounting boundary: Potential storage and avoided-emission effects depend on feedstock traceability, biochar properties, end use, energy balance, the selected methodology and independent verification. No carbon-credit eligibility or emissions result is stated before project-specific review.

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ESG & Carbon Asset Management

Carbon-credit eligibility and any quantified climate benefit require a dated methodology, feedstock and operating evidence, product testing, eligible end use, independent validation and local project confirmation. They must not be treated as automatic project revenue.

Char-Gas Co-generation — Thermal Circulation Logic

The char-gas co-generation system operates on a closed-loop thermal circulation model:

  1. Primary Carbonization: Biomass feedstock enters the continuous carbonization reactor, where controlled pyrolysis at 450-650°C produces biochar and releases volatile syngas.
  2. Syngas Combustion: The hot syngas is directly fed into a gas combustion chamber, generating high-temperature flue gas (800-1000°C) for power generation via a steam turbine or ORC unit.
  3. Waste Heat Recovery: Exhaust heat from power generation is captured through economizers and heat exchangers, preheating incoming feedstock and drying biomass — reducing moisture content below 15% before entering the reactor.
  4. Thermal Recirculation: A portion of the hot flue gas is redirected to the carbonization reactor jacket, maintaining optimal pyrolysis temperature without external fuel input after startup.
  5. Energy integration basis: Available gas and heat depend on feedstock moisture and composition, operating stability, gas cleaning, auxiliary loads and the selected generator or steam system. Self-sufficiency and export require a verified project energy balance and grid or receiving-load review.

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YUSHUNXIN BIOMASS CARBONIZATION

Connect biochar production with usable heat, steam or power.

A continuous carbonization project can be evaluated as a carbon-product system and an energy system. The correct route depends on biomass consistency, target carbon specification, heat demand, operating scale and the customer's ability to use energy continuously.

Reference layout for a continuous thermal processing system
01 / MATERIAL TO VALUE

Separate three commercial routes before selecting equipment

Metallurgical biochar, carbon-project biochar and hard-carbon precursor projects have different customers, testing methods and acceptance cycles.

Metallurgical biochar

Prioritize fixed carbon, ash, sulfur, phosphorus, strength, sizing and delivered cost for the downstream furnace.

Carbon-project biochar

Prioritize feedstock traceability, stable carbon, emissions data, operating records and the applicable carbon methodology.

Activated-carbon feedstock

Prioritize precursor uniformity, volatile matter, ash and the subsequent activation route.

Hard-carbon precursor

Treat the project as a development program: precursor purification, controlled pre-carbonization and sample validation come before an industrial-line promise.

02 / ENERGY ROUTES

Use the recovered energy where it creates the clearest operating value

Direct steam supply can be more practical when a stable industrial steam user is nearby; power generation becomes a separate engineering package with stricter gas-cleaning and load-matching requirements.

  1. 01Dry and size the biomass
  2. 02Continuous oxygen-limited carbonization
  3. 03Separate dust and condensable fractions
  4. 04Clean and condition process gas
  5. 05Return heat to the carbonizer first
  6. 06Evaluate steam, power or combined heat-and-power use
03 / FEASIBILITY GATE

What must be verified before an energy claim is used

Do not calculate an energy return from nameplate throughput alone.

Feedstock test

Moisture, ash, bulk density, particle size and seasonal variation determine drying and feeding requirements.

Carbon target

The carbon specification defines residence time, thermal profile, cooling and product handling.

Gas characterization

Gas quantity, heating value, tar, dust and moisture determine whether an engine, boiler or thermal oxidizer route is practical.

Demand match

Confirm the user's hourly steam or electrical load, pressure or voltage conditions, annual schedule and backup-energy requirement.

REFERENCE CONFIGURATION

Translate project facts into an equipment list.

This reference matrix shows the decision logic. Final quantities, models and interfaces belong in the approved project proposal.

System blockTypical scopeConfiguration basis
Biomass preparationDrying, size control, storage and metered feedingMoisture, density and seasonal consistency
CarbonizationContinuous reactor, atmosphere control and thermal profileTarget carbon specification
Product handlingSealed cooling, sizing, storage and sample pointsOxidation, dust and product quality
Gas and condensablesDust separation, condensation and gas conditioningTar, moisture and intended heat route
Energy integrationInternal heat return, optional boiler, generator or user interfaceVerified energy balance and demand match
STAGE-GATED DECISION PATH

Advance the project only when the required evidence is available.

Each gate turns customer information into a defined technical or commercial output for the next decision.

01

Biomass and product

Confirm biomass consistency and the actual carbon buyer specification.

OutputQualified material-to-product basis
02

Thermal route

Define drying, sizing, carbonization, cooling and quality sampling.

OutputConnected carbon-production flow
03

Energy demand

Match process heat with a verified nearby steam, heat or power demand.

OutputPreliminary energy-use boundary
04

Evidence and acceptance

Agree operating records, tests, emissions and any methodology review.

OutputProject acceptance and evidence plan
PROJECT FAQ

Questions to resolve before configuration.

Answers define the engineering boundary; they do not replace representative material testing or local compliance review.

What changes the continuous carbonization configuration?

Biomass type, moisture, particle size, ash, target carbon specification, operating hours, heat-use route and environmental requirements change the equipment boundary.

Should steam or power generation be selected first?

The receiving energy load should be studied first. A stable nearby steam demand can favor direct steam use, while power generation requires a separate gas-cleaning, generator and electrical-integration package.

Can carbon-credit revenue be treated as guaranteed project income?

No. Eligibility depends on feedstock traceability, operating evidence, methodology, verification and local project conditions.

How is a hard-carbon precursor project different?

It requires precursor purification, controlled thermal development, powder processing and independent material or electrochemical validation beyond ordinary biochar production.

PROJECT ENGINEERING REVIEW

Define the material before selecting the equipment.

Share a representative material description, available volume, site status and target outputs. YUSHUNXIN will use those facts to prepare the relevant process boundary and configuration discussion.

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CATALOGUE-ALIGNED ENGINEERING BASIS

Continuous carbonization and energy integration

Select the carbonization class from prepared volumetric feed, bulk density, moisture, target carbon and energy-use boundary.

01

Incoming material

Sawdust, rice husk, straw, shell or other biomass; particle size, full/air-dry moisture, ash and bulk density.

02

Expected outputs

Biochar and project-specific gas/heat streams; carbon properties require representative laboratory and stable-run data.

03

Project interfaces

Drying/preparation, sealed feeding, carbonization, gas treatment/combustion, cooling, storage, fire control and optional heat recovery.

MODEL AND SCOPE REGISTER

Use only the row matching the selected process boundary.

Catalogue referenceCapacityPowerPhysical envelopeIncluded boundary
SXTD820Continuous carbonization1–2 m³/h95 kW600 m² catalogue land referencePrepared biomass continuous carbonization line
SXTD1200Continuous carbonization3–5 m³/h110 kW650 m² catalogue land referencePrepared biomass continuous carbonization line
SXTD1500Continuous carbonization5–8 m³/h153 kW800 m² catalogue land referencePrepared biomass continuous carbonization line
SXTD1800Continuous carbonization8–10 m³/h178 kW800 m² catalogue land referencePrepared biomass continuous carbonization line
SXTD2000 - 10–14 classContinuous carbonization10–14 m³/h190 kW850 m² catalogue land referenceCatalogue prints SXTD2000 for this class
SXTD2000 - 14–17 classContinuous carbonization14–17 m³/h220 kW850 m² catalogue land referenceCatalogue repeats SXTD2000; final model code requires written confirmation

Configuration rule: catalogue capacity is a planning reference. Stable throughput, installed/operating power, footprint, recovery, purity, emissions and utility demand require the approved equipment list, representative material and written acceptance conditions.

Information required before configuration and quotation

  1. Representative material photos, specifications and available sample.
  2. Required capacity plus hours per shift, shifts per day and operating days.
  3. Target outputs, sampling method and downstream receiver requirements.
  4. Site country, available power, fuel, water, compressed air and building limits.
  5. Local environmental, fire, storage and occupational-safety requirements.
  6. Requested delivery boundary: equipment, layout, installation, commissioning and training.