{"id":7157,"date":"2026-10-14T11:37:44","date_gmt":"2026-10-14T03:37:44","guid":{"rendered":"https:\/\/www.huameicarbon.com\/?p=7157"},"modified":"2026-10-14T11:38:31","modified_gmt":"2026-10-14T03:38:31","slug":"56-tons-wood-pac-edible-oil-decolorization-south-africa","status":"publish","type":"post","link":"https:\/\/www.huameicarbon.com\/ar\/56-tons-wood-pac-edible-oil-decolorization-south-africa\/","title":{"rendered":"56Tons Wood-Based PAC for Edible Oil: South Africa Case Study"},"content":{"rendered":"

56 tons of wood-based powdered activated carbon, shipped in two 40-foot containers to a South African edible oil processor. The carbon was used for decolorization and impurity removal during oil refining \u2014 one of the most demanding PAC applications in the food industry.<\/p>\n

This case study covers the client's requirements, why wood-based PAC outperforms alternatives for edible oil, and how Huamei Carbon delivered from first inquiry to final shipment in under 8 weeks.<\/p>\n

Client Background: Edible Oil Refining in South Africa<\/h2>\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nDetails<\/th>\n<\/tr>\n
Industry<\/td>\nEdible oil processing<\/td>\n<\/tr>\n
\u062a\u0637\u0628\u064a\u0642<\/td>\nDecolorization & impurity removal in oil refining<\/td>\n<\/tr>\n
Key concern<\/td>\nColor removal efficiency + product purity after filtration<\/td>\n<\/tr>\n
Order quantity<\/td>\n56 tons (2 \u00d7 40ft containers, 28 tons each)<\/td>\n<\/tr>\n
\u0645\u0646\u062a\u062c<\/td>\nWood-based powdered activated carbon<\/td>\n<\/tr>\n
Destination<\/td>\nSouth Africa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The client produces refined edible oil and needed a reliable PAC supplier that could deliver consistent decolorization performance across large production batches. Their previous carbon supplier had inconsistent quality \u2014 batch-to-batch variation in color removal meant frequent production adjustments and higher product loss.<\/p>\n

Why Wood-Based PAC for Edible Oil Decolorization<\/h2>\n

Edible oil refining is one of the most PAC-intensive food processing applications. During the bleaching stage, powdered activated carbon is mixed directly into the oil to adsorb pigments (carotenoids, chlorophyll), free fatty acids, and trace contaminants like PAHs (polycyclic aromatic hydrocarbons).<\/p>\n

Wood-based PAC is the industry standard for edible oil because of its pore structure. Produced through phosphoric acid activation of wood chips, it develops a high proportion of mesopores (2\u201350 nm) \u2014 the exact pore range that captures large organic color molecules in oil.<\/p>\n\n\n\n\n\n\n\n\n
Property<\/th>\nWood-Based PAC<\/th>\nCoal-Based PAC<\/th>\nWhy it matters for edible oil<\/th>\n<\/tr>\n
Dominant pore type<\/td>\nMesopores<\/td>\nMicropores<\/td>\nMesopores capture<\/p>\n

large pigment molecules<\/td>\n<\/tr>\n

Methylene blue<\/td>\n150\u2013300 mg\/g<\/td>\n80\u2013150 mg\/g<\/td>\nHigher MB = stronger<\/p>\n

decolorization<\/td>\n<\/tr>\n

Ash content<\/td>\n\u22646%<\/td>\n\u226415%<\/td>\nLower ash = less<\/p>\n

contamination in oil<\/td>\n<\/tr>\n

pH<\/td>\nNeutral to slightly acidic<\/td>\nAlkaline<\/td>\nAcidic pH is compatible<\/p>\n

with oil refining<\/td>\n<\/tr>\n

Iron content<\/td>\nVery low<\/td>\nHigher<\/td>\nIron catalyzes oil oxidation<\/p>\n

\u2014 must be minimal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For this client, we recommended Huamei's wood-based powdered activated carbon<\/a> with the following specifications:<\/p>\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n
Raw material<\/td>\nWood (sawdust)<\/td>\n<\/tr>\n
Activation method<\/td>\nPhosphoric acid<\/td>\n<\/tr>\n
Particle size<\/td>\n200 mesh (95% pass)<\/td>\n<\/tr>\n
Methylene blue<\/td>\n\u226517 ml\/0.1g<\/td>\n<\/tr>\n
\u0631\u064f\u0637\u064f\u0648\u0628\u064e\u0629<\/td>\n\u226410%<\/td>\n<\/tr>\n
Ash content<\/td>\n\u22646%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

From Inquiry to Order: 5 Days<\/h2>\n

The entire sales cycle \u2014 from first contact to confirmed purchase order \u2014 took just two days. Here's the timeline:<\/p>\n

August 15:<\/strong> The client sent their initial inquiry, describing their edible oil decolorization requirements. Our technical team reviewed the application details and recommended wood-based PAC with high methylene blue value. We shipped samples the same day via express courier and invited the client to visit our factory.<\/p>\n

August 20:<\/strong> The client arrived for a factory visit. We walked them through the full production process \u2014 raw material storage, carbonization furnace, activation line, grinding and classification, quality control laboratory, and packaging line. The client inspected our production equipment, testing instruments, and finished product warehouse.<\/p>\n

After seeing the production scale and quality control procedures firsthand, the client placed the order on the spot \u2014 56 tons of wood-based PAC, packed in two 40-foot containers.<\/p>\n

Loading day:<\/strong> The client personally returned to our factory to supervise the container loading process, verifying product labels, packaging integrity, and container conditions before sealing.<\/p>\n

\"Close-up<\/h2>\n

Shipment Details<\/h2>\n\n\n\n\n\n\n\n\n
Item<\/th>\nDetails<\/th>\n<\/tr>\n
Total quantity<\/td>\n56tons<\/td>\n<\/tr>\n
Container<\/td>\n2 \u00d7 40ft<\/td>\n<\/tr>\n
Loading per container<\/td>\n28 tons<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u0639\u0628\u0626\u0629 \u0648\u0627\u0644\u062a\u063a\u0644\u064a\u0641<\/td>\nJumbo bags (FIBC) on pallets<\/td>\n<\/tr>\n
Documentation<\/td>\nCOA (Certificate of Analysis) per batch, packing list, commercial invoice<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Client Feedback: Less Loss, Better Finished Product<\/h2>\n

On October 12, the client sent their feedback after running our PAC through full-scale production:<\/p>\n

\"The product performance is very good. Not only has our processing loss decreased, but the finished oil quality has also improved. We look forward to the next order.\"<\/p><\/blockquote>\n

Two specific results the client reported:<\/p>\n