Solvent Extraction Technology Recycled Diesel/Base Oil Water White Color Deodorize Decoloration Machine

 Why we develop Solvent Extraction Technology Recycled Diesel/Base Oil Water White Color Deodorize Decoloration Machine
With the higher and higher requirement on base oil quality of downstream petrochemical enterprises especially the base oil blending factories, with some old fashioned technology, the recycled base oil quality is hard to meet the requirement of the downstream user. Before the expensive and technologically complex hydrogenation technology is widely used in oil recycling factory, there are many re-refining technologies, such as fuming sulphuric acid refining technology, lewis acid refining technology, these technology is better than the old fashioned technology, but there`s still a big gap from hydrogenation technology, the environmental pollution problem, the acid sludge, waste white clay disposal are big problems. With the strict policy of the National environmental protection department, many many unqualified small oil recycling and oil refining factories were closed by the government. So now, the market require a kind of efficient, low processing cost, environmentally friendly and pollution-free refining process.

So, our company invested a lot of money and manpower to develop this type of environmental protection, energy saving refining equipment YJ-SR series machine.

The solvent and oil are two immiscible solutions, the both two immiscible solutions of different densities are pumped into the extractor through two entrances respectively, and then rapidly mixed in the gap between the drum and the shell, and the mixed liquid enters the drum through the inlet at the bottom of the drum, and the accelerated heavy phase is threw to the lateral side of the drum. the light phase remains on the inside of the heavy phase, the two-phase interface is between the light phase outlet and the heavy phase underflow channel, and the heavy phase underflow channel is in the upper part of separation zone that composed of heavy phase enthalpy

there are five-stage separator, like the following picture,the oil and solvent was seperated two layer due to the different densities after heating and reacting,the up layer is oil, and the bottom layer is solvent. after five times,the oil become to water-white color.

1)Solvent can be recovered, which can be used again and again,the solvent consumption is only 5%-2%.

2)Full-automatic: The machine adopt full-automatic continuously feeding process, no any demand on manual labour, one worker can finish all the work.

3) Wide range of applications,can refine all kind of mineral oil which don’t contain solid particle to new oil, with water color, the color is less than 0.1,all indexes is close to the API II hydrogenated base oil.

4）low loss: Unlike the normal refining technology with high loss, we design a special structure, it can targeted separate the impurities, sulfides, oxides, colloid, asphalt which has color and may influence the base oil function. Taking the vacuum distilled base oil for example, the oil loss is about 1-2%; For diesel oil refining, the loss is only 1-1.5%.

6) Material:SS#304 stainless steel material

7)Refining cost is low: Refining one ton base oil, the cost is just 200RMB(about 30USD); Refining one ton diesel oil, the cost is just 150RMB(about 23USD). The cost is much lower than hydrogenation technology and lewis acid refining technology.

8)Zero pollution: No any waste gas, waste water and waste sludge. During all the process, we don’t use any oxidizing agent, no chemical, no catalyst, no white clay, no any filtering agent (silica gel, filtering paper, filter cloth).

What the difference between our solvent refining equipment and other company`s solvent refining? 

• What’s important is our solvent can be recovered and reused again and again,do not like furfural solvent,which need to always change the solvent.
• Other companies use Extraction tower or rotary towers for solvent refining,but We use centrifugal extraction for refining.
• Our solvent is Self-developed Composite additive not Single additive
• The general solvent refining only can get the oil with the color standard of 1.0. Our solvent refining can get the oil with the color standard of 0.1.