Detailed classification Petroleum Additives

Petroleum additives mostly organic, but in water-based liquid, emulsion products, there are some some inorganic products. Itself has some limitations petroleum processing equipment and a variety of processes, most of them can only produce base oils of petroleum products from product use, storage, performance requirements, there is still a gap, most of these properties can only be resolved by oil additives, Therefore, oil additives in oil production and improve oil quality, plays a decisive role.

It is noteworthy that the additive is not a panacea, it can not make poor-quality oil into high-quality oil, one of the main factors additives only improve the quality of oil. Additive contribution depends not only on its specific components, but also on the quality of the base oil (ie refined base oils have a certain depth or type, that is, solvent refining, hydrorefining, isomerization or synthetic wax) and added oil additive formulation technology, both of which are indispensable.

1. detergent, added to the fuel or lubricant to make engine parts are cleaned and maintained engine parts clean chemicals. Engine oil formulations, detergents mostly with basic metal oxide or soap to neutralize the acid generated in combustion.

2. dispersants, make solid contaminants in colloidal suspension in oil chemicals, prevent sludge, varnish and sludge and other substances are deposited on engine parts. Dispersants are generally non-metallic (ash), general and detergent in combination. .

3.The anti corrosion agents, can inhibit oil oxidation and protection lubricated surfaces against water or other contaminants chemically aggressive chemicals.

4. The extreme pressure agents, under extreme pressure to prevent the sliding surface of the sintered metal and abrasions chemicals. Such as: T321 isobutene sulfide.

5. The anti-wear agents, can generate strong resilience thin film at a high load of parts to prevent metal to metal contact of chemicals.

6. oily agent, under boundary lubrication conditions from the enhanced lubricating oil lubricity and prevent wear and abrasion of chemicals. Oily generally are animal and vegetable oils or the end of a compound in the hydrocarbon chain polar groups, these compounds have a strong affinity for metal, its role is adsorbed by polar groups in the friction surface, the molecular orientation of adsorbed film, prevent metal contact with each other, thereby reducing friction and wear.

7. The friction modifiers, can reduce both chemical contact between the friction coefficient of the metal surface. FM generally do not react with the metal, but is adsorbed on the metal surface. Adsorbed film can reduce the frictional heat oil / metal interface, to facilitate improved efficiency under certain conditions. FM typically phosphorus or nitrogen derivatives.

8. antioxidants, can improve the oxidation resistance and extend the use of oil or chemical storage life. Antioxidants are also known as oxidation inhibitors.