Wood-based powder activated carbon is used for sugar and liquid decolorization.

Food‑grade wood‑based powdered activated carbon is manufactured from high‑quality sawdust via phosphoric‑acid activation process. It features highly‑developed mesopore structure, which is the core advantage for sugar liquor decolorization. Sugar liquid contains large‑molecule color bodies such as melanoidins and caramel pigments. These macromolecular impurities can be efficiently captured by abundant mesopores of wood PAC, while micropore‑dominated coconut‑shell or coal‑based activated carbon cannot achieve comparable decoloring performance.

Our wood‑based PAC reaches methylene‑blue value up to 280 mg/g, ranking top among all powdered activated carbon products. With low ash content and strict heavy‑metal control, this material complies with FCC food‑grade standard, HALAL and KOSHER requirements, and fits cane‑sugar and beet‑sugar refining production perfectly. In batch‑mode sugar decolorization process, add PAC into sugar liquor with proper dosage, keep stirring for 15‑60 minutes for sufficient adsorption, then filter out carbon residue to obtain light‑colored refined sugar solution. Two‑stage dosing solution can realize over 95% color removal rate and reach ICUMSA 45 color standard in single pass, lowering carbon consumption by up to 35% compared with conventional carbon materials. Each batch is supplied with complete COA test report, supporting SGS/BV third‑party inspection.

Wood-based powder activated carbon is used for sugar and liquid decolorization.

1. Cane sugar & beet‑sugar liquid decolorization: Mainly applied for raw sugar liquor decolorization in sugar refineries, remove caramel, melanoidins and polyphenol pigments, help to achieve ICUMSA‑45 high‑purity refined sugar standard。
2. Glucose & starch syrup processing: Decolor for corn syrup, maltose and dextrose liquid, eliminate fermentative color impurities, guarantee transparent appearance of finished syrup。
3. Citric acid, MSG & amino‑acid purification: Decolor and purify fermentation broth of food‑grade organic acid and amino‑acid products。
4. Edible vegetable oil refining: Remove pigments and peculiar smell in vegetable oil with acid‑washed low‑ash variant grade。
5. Pharmaceutical API purification: Decolor for food‑contact pharmaceutical intermediate liquid, strictly control impurity residue。
6. Wine and spirits clarification: Adsorb miscellaneous pigments and off‑flavor substances for wine and distilled spirits, optimize product sensory performance。

Q1: Why wood‑based powdered activated carbon is preferred for sugar liquid decolorization?

A：Sugar‑liquid color contaminants are large organic molecules. Produced by phosphoric‑acid activation, wood‑based PAC owns rich mesopore structure and maximum methylene‑blue value (up to 280 mg/g) among all activated‑carbon varieties. Mesopores can accommodate those large pigment molecules, delivering unmatched decoloring capacity. Coconut‑shell carbon is dominated by micropores, so it cannot efficiently adsorb sugar color bodies。

Q2: What is the recommended dosage and contact time for sugar liquor decolorization?

A：For sucrose liquid refining, typical working dosage ranges 0.1‑0.3% (w/w). Keep stirring for 15‑60 minutes, and actual parameters should be adjusted according to initial color value and target ICUMSA index. Two‑stage PAC feeding is recommended for deep‑decolor demand, which can reduce total carbon consumption while ensuring over 95% color removal rate。

Q3: What certifications are required for food‑grade activated carbon for sugar industry?

A：Food‑grade PAC for sugar production shall have ISO 9001 quality‑management certification, FCC food‑grade compliance. For export business, HALAL and KOSHER certificates are necessary. Every batch must be attached with COA analysis report, and support SGS or BV third‑party testing service。

Q4: Phosphoric‑acid activation vs steam activation wood carbon, what is the difference for sugar decolorization?

A：Phosphoric‑acid‑activated wood carbon forms higher mesopore volume and better macromolecule decoloring performance, which is mainstream choice for sugar decolorization. Steam‑activated wood carbon generates more micropores, more suitable for small‑molecule adsorption scenarios, and its decolor efficiency for sugar liquor is relatively poor。

Q5: What are packaging options and MOQ?

A：Available in 25 kg PP woven bag, 500 kg jumbo bag, 1000 kg super sack, also support OEM custom‑branded packaging. Minimum order quantity is 3 tons. Standard lead time is 7‑10 working days, our logistics team can handle full set of export documents。

Q6: Can this carbon be shared between sugar decolorization and edible‑oil refining?

A：Base wood‑PAC material is the same. But edible‑oil refining requires extra acid‑washed low‑ash variant to avoid metal‑ion contamination to oil products. We can supply both standard sugar‑decolor grade and acid‑washed oil‑special grade for selection。