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Supercritical Fluid Extraction (SCF):

Pressure (atm). Supercritical Fluid. Liquid. Solid. 萃取槽. Pc. 分離槽. Gas. Tc. Temperature ( ℃ ). Supercritical Fluid Extraction (SCF):. CO2+Solute. Pressure reduction. CO2. Equilibrium cell. Pump. separator. Pre-heater. Pre-heater. Extracted Material.

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Supercritical Fluid Extraction (SCF):

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  1. Pressure (atm) SupercriticalFluid Liquid Solid 萃取槽 Pc 分離槽 Gas Tc Temperature(℃) • Supercritical Fluid Extraction (SCF): CO2+Solute Pressure reduction CO2 Equilibrium cell Pump separator Pre-heater Pre-heater Extracted Material

  2. Applications of Supercritical Fluid Technology 化妝品工業 醫藥工業 化學工業 高純度油精練 奈米級藥品製造 高分子聚合 低溫精練原料 藥品成分結晶 高價植物品去酸 提取油脂 高分子加工 藥品精練 發泡及噴霧 分餾化妝品成分 藥品殺菌 修補 中草藥有效成分萃取 食米清洗去脂 清洗製程 提取香精 取榖類殘留農藥 啤酒花萃取 提取殘留重金屬 奈米粉末 分離果汁辛辣味 去咖啡因 酵素高壓氧化 奈米材料製造 魚油萃取 色素萃取 纖維染色 尼古丁萃取 其他 農作物 香料/咖啡

  3. TC TC 氣體反溶劑法(Gas anti-solvent,GAS) Solvent Pump CO2 Pre-Expansion Heater/Valve Solvent & Solute Flow Meter CO2 Pump PI PI TC CO2 Chiller TC CO2 膨脹槽 收集槽

  4. Gas Anti-Solvent, GAS 操作變數： 1.膨脹槽的溫度 2.膨脹槽的升壓速率 優點： 待造粒物質在超臨界流體不須具有足夠的高溶解度 缺點： 1.使用有機溶劑 2.需要較高壓的加壓設備 3.與PCA法相比較易有溶劑殘留於微粒上 4.SCF/溶劑須相分離 5.粒徑分布較不均一 主要的研究對象：製備顆粒較大或是結晶形的高分子、 染料、顏料等

  5. 超臨界CO2萃取天然物及中草藥的有效成分

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