Through years of skill improvement and skill innovation, some large domestic desulfurization companies have gradually created state-owned skills with independent intellectual property rights, together with the efforts of relevant domestic manufacturers, the vast majority of equipment in the desulfur

Zinc oxide desulfurizer is a conversion and absorption type desulfurizer, and sulfur has a strong affinity, and the product zinc sulfide has a high stability. Therefore, zinc oxide desulfurizer can fine remove the hydrogen sulfide and part of the organic sulfur in the raw material, and the reaction performance with thiol in organic sulfur is better.

Internationally, there is no precise definition of synthetic oil versus mineral oil, it is a common term, API (American Petroleum Institute) has five categories of base oil, usually the third and fourth category of base oil is called synthetic oil. The usual synthetic oils are: PAO, XHVI, and esters.

Base oil types are divided into five categories as follows.The first category, conventional solvent-refined mineral oils.The second category, hydrocracked mineral oils.Category III, highly hydrocracked or hydroisomerized waxes.Fourth category, polyalpha-olefins (PAO).Category V, other synthetic oils

Almost all diesel coagulant at lower temperatures are presented as more viscous state, so the coagulant stored at lower temperatures should be heated to above 20 ℃ before use to ensure that it is in solution before adding diesel, and to be added at a temperature above the cloud point of diesel, that is, when there is no wax precipitation from diesel. The addition amount is generally in 0.5‰~1.0‰, but the addition ratio of Lingzhi coagulant is larger.

After adding coagulant in diesel fuel, when the temperature is lowered and the wax crystal is formed, the coagulant will play the role of nucleating agent and wax crystal together or adsorbed on the surface of the wax crystal, preventing the mutual bonding between the wax crystal, preventing the generation of a continuous crystalline network, making the wax crystal particles more fine and can pass through the filter well. This destruction or change of wax crystallization function of the coagulant can reduce the cold filtration point and freezing point of diesel fuel.