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バイオガス活性炭

Buy Biogas Activated Carbon

Activated carbon is a necessary step in biogas purification, primarily to remove problematic contaminants. It has the ability to adsorb hydrogen sulfide (H₂S), which is a corrosive, poisonous gas, and several different siloxanes that produce damaging deposits upon combustion, both of which are critical to remove during the purification process. The crucial function of activated carbon depends on its large surface area for physical adsorption. There are also forms of activated carbon that are chemically impregnated and these conditions allow H₂S to be catalytically converted to inert products.
 
Activated carbon is employed in filter beds that treat corrosive raw biogas as it flows through the activated carbon by-products and exits the carbon filtration. Activated carbon not only removes potentially harmful H₂S and siloxanes, protecting downstream equipment (like engines), and allowing the use of fuel or injected biogas into the electrical grid; it also assists in the overall purification of biogas, and presents an added level of operational safety in biogas purification.
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業界の課題

Material Performance Limitations

  • Adsorption Selectivity: Activated carbon exhibits non-selective adsorption, capturing CO₂ and moisture alongside target contaminants like H₂S or siloxanes, reducing effective capacity for primary pollutants.
  • Pore Clogging: Particulates, oil mist, or tars in biogas physically block micropores ("pore poisoning"), diminishing surface area and adsorption efficiency over time.

Sensitivity to Operational Conditions

  • Humidity Interference: High moisture levels (>70% RH) compete with contaminants for adsorption sites, significantly lowering H₂S removal performance, especially in humid climates.
  • Temperature Instability: Elevated biogas temperatures (e.g., >40°C) reduce adsorption capacity and may trigger desorption of captured pollutants.

System Integration and Maintenance

  • Saturation Management: Finite adsorption capacity necessitates frequent carbon replacement or regeneration, risking pollutant "breakthrough" if not timely addressed.
  • Regeneration Complexity: Thermal/chemical regeneration is energy-intensive and may incompletely restore capacity or release trapped pollutants, requiring secondary treatment.

活性炭の種類

颗粒活性炭（粒状活性炭）

粒状活性炭（GAC）

  • ヨウ素価：600-1200
  • メッシュサイズ:1×4/4×8/8×16/8×30/12×40/20×40/20×50/30×60/40×70 (その他のサイズはお問い合わせください)
  • 見かけ密度400-700
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柱状活性炭

ペレット状活性炭

  • ヨウ素価：500～1300
  • 網のサイズ: 0.9-1mm/1.5-2mm/3-4mm/6mm/8mm （より多くのサイズは要求あり次第）
  • 見かけ密度450-600
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粉末活性炭（粉末活性炭）

粉末活性炭

  • ヨウ素価：500～1300
  • メッシュサイズ：150/200/300/350 (ご要望によりその他のサイズも可能)
  • 見かけ密度450 - 550
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蜂窝活性炭（ハニカム活性炭）

ハニカム活性炭

  • ヨウ素価400-800
  • メッシュサイズ: 100×100×100mm/100×100×50mm (セル密度はご要望に応じます)
  • 見かけ密度350-450
  • ボア径：1.5-8mm
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ヤシ殻活性炭

  • ヨウ素価：700～1200mg/g
  • 表面積700-1200 m²/g
  • 見かけ密度320-550 kg/m³
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ナッツシェル活性炭

  • ヨウ素価：700～1200mg/g
  • 表面積700-1200 m²/g
  • 見かけ密度320-550 kg/m³
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石炭系活性炭

石炭系活性炭

  • ヨウ素価：700～1200mg/g
  • 表面積700-1200 m²/g
  • 見かけ密度300-650 kg/m³
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木質活性炭

  • ヨウ素価：700～1200mg/g
  • 表面積700-1200 m²/g
  • 見かけ密度320-550 kg/m³
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物理的活性炭

  • 活性化方法高温でのスチーム/ガス活性化
  • 細孔構造：マイクロポーラス支配、均一な細孔分布
  • 環境プロフィール化学薬品不使用、低灰分
  • 主な用途気相吸着、飲料水浄化
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化学活性炭

  • 活性化方法：適度な温度での化学的活性化（例：H₃PO₄/ZnCl₂)
  • 細孔構造：メソポーラスリッチ、高表面積
  • プロセス効率：より短い活性化時間、30-50% より高い収率
  • 後処理：残留物を除去するために酸洗いが必要
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含浸活性炭

  • 官能基化：活性剤を添加（例：I₂/Ag/KOH）
  • ターゲット吸着：特定の汚染物質（例：Hg⁰/H₂S/ 酸性ガス）の捕獲強化
  • カスタマイズ対象汚染物質に化学的に最適化
  • コアアプリケーション工業用ガス処理、CBRN防護
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Why You Need Our Activated Carbon

Enhanced Contaminant Selectivity:

Targeted adsorption for critical biogas impurities (H₂S, siloxanes) with minimal interference from CO₂ or moisture, maximizing effective capacity.

Advanced Material Engineering:

(1) Chemically optimized impregnation ensures catalytic H₂S conversion to harmless byproducts without frequent media replacement.
(2) Tailored pore structure prevents premature clogging and maintains high siloxane/VOC adsorption efficiency.

gear (1)(1)

Operational Resilience:

(1) Stable performance under high humidity (>70% RH) without pre-drying requirements.
(2) Consistent adsorption capacity across variable biogas temperatures and compositions.

Sustainable Lifecycle:

(1) Biomass-derived raw materials from renewable sources align with circular economy principles.
(2) Regenerable design extends service life and reduces waste generation.

execution (1)(1)

System Integration Support:

(1) Predictable saturation indicators enable proactive maintenance scheduling. (2) Reduced backpressure in filter beds lowers energy consumption for gas transfer.

プロセスと技術

1. Hydrogen Sulfide (H₂S) Removal

ソリューションの概要

Chemically impregnated activated carbon catalytically converts toxic H₂S into harmless elemental sulfur through oxidation. Installed in fixed-bed filters where raw biogas flows through the carbon media.

主な利点

  • Prevents corrosion damage to engines and pipelines.
  • Maintains effectiveness in humid biogas environments.
  • Eliminates toxic gas emissions during energy generation.
  • Requires no chemical additives during operation.

2. Siloxane Removal

ソリューションの概要

High-surface-area activated carbon physically adsorbs siloxane compounds through its microporous structure. Implemented in adsorption towers upstream of combustion equipment.

主な利点

  • Prevents abrasive silica deposits in engines.
  • Extends maintenance intervals for generation equipment.
  • Maintains consistent energy output quality.
  • Handles variable biogas composition effectively.

3. Volatile Organic Compounds (VOCs) and Odor Control

ソリューションの概要

Activated carbon traps diverse organic compounds and odor-causing substances via physical adsorption. Used in final polishing stages before biogas utilization.

主な利点

  • Removes hazardous air pollutants.
  • Eliminates nuisance odors from biogas facilities.
  • Improves environmental compliance.
  • Enhances community acceptance of biogas projects.

4. Carbon Dioxide (CO₂) Capture for Biogas Upgrading

ソリューションの概要

Specially engineered activated carbon with tuned pore structures selectively adsorbs CO₂ from biogas streams. Deployed in pressure swing adsorption systems for methane enrichment.

主な利点

  • Produces pipeline-quality biomethane.
  • Utilizes sustainable biomass-derived carbon materials.
  • Enables grid injection of purified biogas.
  • Supports circular economy through waste valorization.

関連ブログ

How to Use Activated Carbon for Biogas Purification
How to Use Activated Carbon for Biogas Purification
Biogas Activated Carbon removes hydrogen sulfide, VOCs, and siloxanes, protecting equipment and improving...
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