Crude Glycerin 80% CG

Description

Tree Chem manufactures and supplies Crude Glycerin to customers across chemical, feed, and renewable energy industries. Supported by long-term partnerships with biodiesel plants, we offer multiple quality types — pure vegetable, pure UCO, vegetable, and UCO-mixed glycerin — to meet different technical and cost requirements. Our diverse sourcing network and quality control system ensure consistent performance for various downstream applications. For technical support or quotations, please contact rocket@cntreechem.com.

Specification

Tree Chem operates multiple production lines dedicated to crude glycerin manufacturing, ensuring stable quality and consistent supply. Each grade of crude glycerin is stored in independent tanks to maintain purity and avoid cross-contamination. With flexible process control, Tree Chem offers customized specifications according to customer requirements for parameters such as glycerol content, moisture, ash, and residual methanol. Our production system is designed to meet diverse raw material needs across biodiesel, chemical, agricultural, and energy industries.

Basic Information

Technical Specification

Applications

Industrial Uses

• Crude glycerol is refined into refined glycerol:

Crude glycerol typically contains approximately 80% glycerol as its primary component, along with small amounts of water, methanol, soaps, and free fatty acids. Through refining processes such as acidification to remove soaps, distillation to remove methanol, vacuum fractionation, decolorization, and ion exchange, crude glycerol can be converted into refined glycerol with a purity exceeding 98.5%. Refined glycerol is widely used in the pharmaceutical, cosmetics, food, resin, and plastics industries, making it one of the most common and highest-value-added uses of crude glycerol.

• Crude glycerol in chemical synthesis:

Crude glycerol is an important organic raw material in the chemical industry. It serves as a building block for the synthesis of chemical intermediates such as propylene oxide, acrolein, chlorinated glycerol, and 1,3-propylene glycol. For example, through chlorination, dehydrogenation, and epoxidation, crude glycerol can be converted into propylene oxide, which is used in the production of epoxy resins and papermaking additives. These derivatization routes not only increase the economic value of the raw material but also enable circular utilization within the biodiesel industry chain.

• Crude glycerol for energy and fuel:

Crude glycerol has a calorific value of approximately 16 MJ/kg and can be used directly as boiler or kiln fuel. In many biodiesel plants, crude glycerol is mixed with heavy oil or bio-oil in appropriate proportions and burned for on-site heating or power generation. Furthermore, through catalytic reforming or gasification, crude glycerol can be converted into clean energy sources such as hydrogen, synthesis gas, or methane, providing a low-cost feedstock for hydrogen and renewable fuel production.

• Crude glycerol for hydrogen and synthesis gas production:

Crude glycerol can be steam reformed at 600–750°C to produce hydrogen. This process, conducted over nickel-based or precious metal catalysts, produces a hydrogen volume fraction of 70–75%. After conversion and PSA purification, the hydrogen purity can reach 99.9%. This method enables the energy utilization of biodiesel byproducts, providing a green hydrogen source for the refining, electronic gas, and fuel cell industries.

• Environmental Protection Applications of Crude Glycerol:

Crude glycerol, rich in biodegradable carbon, can be used as a denitrification carbon source in municipal or industrial wastewater treatment, improving nitrogen removal efficiency. It can replace sodium acetate or methanol, reducing reagent costs and improving system stability. Furthermore, in anaerobic fermentation systems, crude glycerol can serve as a co-substrate, promoting methane production and increasing biogas yield, achieving dual benefits in energy and wastewater treatment.

Agricultural Uses:

• Crude glycerin as a feed energy additive:

After removing the methanol, crude glycerin can be used directly in animal feed, replacing some corn or molasses as an energy source. It is rich in soluble carbon, has a high calorific value, and is easily absorbed. It can increase feed intake in ruminants and milk fat content in dairy cows, and improve growth performance and feed palatability in poultry.

• Crude glycerin in feed pelleting:

In feed production, adding 2–4% crude glycerin can increase pellet hardness, reduce dust formation, and significantly reduce dust generation during production. Its excellent wettability and water retention properties also improve feed appearance and storage stability, making it widely used in livestock feed pellets.

• Crude glycerin in microbial fertilizer production:

Crude glycerin is rich in carbon and can be used as a microbial culture medium to promote bacterial growth. Fermentation with microorganisms such as Bacillus subtilis, lactic acid bacteria, and yeast can produce liquid or solid organic fertilizers, improving fertilizer activity and crop nutrient absorption efficiency. This type of fertilizer significantly improves soil structure and enhances plant stress resistance.

• Crude glycerol’s role in pesticide formulations:

After demethanolation, crude glycerol exhibits excellent solubility and low toxicity, making it suitable for use as a solvent, humectant, or spreading aid in pesticide formulations. It improves the wettability and adhesion of pesticide solutions, enhancing the dispersion of herbicides and insecticides, and is a common excipient in environmentally friendly pesticide formulations.

• Crude glycerol’s use in biogas and agricultural energy:

In biogas fermentation systems, crude glycerol can be mixed with livestock and poultry manure or food waste as a co-fermentation substrate, significantly increasing gas production and methane content. It can also be used in farm thermal energy systems, such as greenhouse heating or agricultural drying, achieving waste-to-energy and agricultural recycling.

Crude glycerin also plays an important role in some uncommon fields: for example, cement and clinker grinding aids, concrete admixture base (retardant setting/collapse prevention), road and yard dust suppressants, low-temperature antifreeze and snow melting fluid components, asphalt regeneration/regeneration agent carriers, oil and gas drilling and completion fluid lubrication and shale inhibition, papermaking deinking and sizing aids, leather softening and oil tanning compatibility additives, and aquaculture circulating water (RAS) denitrification carbon source, etc.

Storage & Handling

• Store in dry, sealed tanks away from direct sunlight and moisture.
• Suitable materials: stainless steel or coated carbon steel.
• Avoid contact with acids and oxidizing agents.
• Warm to 40–50 °C for easier pumping if viscosity is high.
• Use appropriate PPE and ventilation during handling.

Usage Notice

• Industrial use only — not for food or pharmaceutical applications.
• Check methanol, ash, and moisture levels before processing.
• Comply with local regulations regarding waste handling and renewable feedstock.
• Always use proper containment to prevent environmental release.

Packaging

• Bulk / Flexitank: 20–24 MT
• IBC: 1,000 L
• Drum: 200 L
• Labeling includes product name, batch number, and feedstock origin (Pure Veg / Pure UCO / Veg / UCO Mixed).