Furfural extraction oil, ethylene tar and vacuum residue were studied in this paper, the three kinds of oil were blended under laboratory conditions, the viscosities were determined on a certain temperature, and the causes of viscosity change were analyzed by using petroleum disperse system theory. The results show that, when the volume ratio of furfural extraction oil, ethylene tar to vacuum residue are 3∶5∶1, 1∶3∶1, 2∶5∶1 and 1∶5∶1, the viscosity, flash-point and stability are all up to the standard of marine fuel.

Based on the intensive investigations on the catalytic cracking reactions for hydro-treated tail oil residue, a 5-lump reaction network and its kinetic model have been established. Based on experimental data obtained from catalytic dewaxing equipment, a computational program was written by Marquardt++ method and Matlab language; and activation energy, reaction rate constant and preexponential factors were calculated. It turns out that the model fits well with raw materials and reaction conditions change, and product distributions and their yields are predicted well under different conditions.

The oxidation of vacuum residue of Russian fuel oil M100 was studied with self-made device for 10 h under the oxidation temperatures 225 and 250 ℃ with the ventilation capacity of 0.2 m3/(h•kg). The results show that three asphalt of oxidized samples can meet well with technical requirements of road asphalt (JTG F40-2004) for 130#C, the standard grade of asphalt and bitumen and 110#C grade standards. A modifier SBS was added with the weight ratio of 1% to 5%, and the MAW-1-type stabilizer was also added with the mass ratio of stabilizers to SBS 1∶(10~15). Two polymer modified bitumen were in line with the standard of the SBS class I-A in the technical requirements (JTG F40-2004).

The hydrodesulfurization and dearomatization process for C6 solvent oil were investigated in multisteps including hydrorefining, adsorptive desulfurization and hydrodearomatization. The results show when the catalyst for hydrorefining section is MC-1 and for adsorption desulfurization section is HTZM-1, and reaction conditions are listed below: temperature 260 ℃, space velocity 6 h-1, pressure 2.0 MPa and the volume ratio of hydrogen to oil 100, the sulfur content of product can be reduced to 0.5 μg/g; Hydrodearomatization was carried out with HTB-1H as the catalyst under the following reaction conditions: temperature 120 ℃, space velocity 0.5 h-1, pressure 0.6 MPa and the volume ratio of hydrogen and oil is 100, the aromatic content of product is reduced to less than 100 μg/g to meet the new standard of C6 solvent oil.

 

 

 

 

In order to improve the furfural solubility and selectivity in extracting furfural extract oil，single extraction in laboratory experiments was done by choosing ultrasonic method.The effect of ultrasonic frequency, intensity, reaction time and the way of the ultrasonic on yield and characteristic of the refined oil were mainly studied. The results show that the yield of refined oil significantly increased by 2%~3% , there is not obvious changes in basic properties of the refined oil but quality obviously improved with auxiliary assist of the ultrasound radiation when the operating temperature is 60 ℃.

Oxidative desulfurization of diesel via ultrasound irradiation was studied in the experiment, and then an adsorption process by active carbon follows. Oxidative desulfurization was carried out by catalyst via ultrasound with H2O2 as an oxidant, acid mixture with V（H3PO4）∶V（H2SO4）1∶1 as reaction medium. Activated carbon would be pretreatment by different methods. The effect of the different activated carbon on sulfur removal rate of oxidized diesel oil was investigated. The result of the experiment indicates that the sulfur removal rate would reach 97.70 % when the oxidation diesel oil is washed by KOH before adsorption over activated carbon treated by nitric acid, and the oil yield would be 91.05 %.

A method of solvent extraction to separate heavy aromatics was adopted from furfural extraction oil, which is used to produce rubber softener. This provides a good technique for taking good advantage of the extraction oil. The results show that with the furfural as the extract reagent, under the condition of the extract temperature is 60 ℃， the mass ratio of solvent to oil is 2.0， extract time 3 min，the sedimentation time is 30 min. After furfural extraction, the rubber softener satisfies the standard of rubber softener. A good macromolecule aromatics rubber softener would be obtained, and the remained oil can be used as the raw material of FCC. So this technology has good application potentials.

The paper presents the demetallization from Liaohe coker gasoline under the ultrasound radiation. The effect of ultrasound-assisted, demetallization agent and its amount, reaction time in demetallization were studied, in order to obtain optimum processing parameter during demetallization. The results show that high metal removal effect will be obtained in short time under the assistance of ultrasound. The metal removal effect is the best when the demetallization agent [KG*3/5]mass[KG*3/5] fraction[KG*3/5] is 1 500 μg/g, the ultrasound radiation time is 15 min and the ultrasound intensity is 8 W/cm2. The removal rate of Zn is 90%, and the removal rates of Ca and Ni are above 80%.

As oil sand cleaning agent prepared by our own, the grit carries out separation on Inner Mongolia Zha Lai Te Qi oil under ultrasonic. The effects of ultrasonic frequency, ultrasonic intensity, cleaning time, cleaning temperature of oil sand separating were investigated. The results show that under ultrasonic cavitations, under the condition of an ultrasonic frequency of 28 kHz, ultrasonic intensity of 7.06 W/cm2, the ratio of cleansing agent to oil sand 0.8∶1, system temperature 60 ℃ , cleaning time 13 min，the oil extraction rate achieve 94 %. The oil extraction rate is improved greatly under the ultrasonic wave action.

Catalytic oxidation is a non-HDS technology to remove sulfur compounds from diesel fuel. On the basis of catalytic oxidation and solvent extraction, ultrasound irradiation was introduced to provide energy for the reaction， which developed a completely new diesel oil oxidative desulfurization technology. The sulfides in Liaohe straight-run diesel fuel had been oxidized to sulfones with H2O2-formic acid as oxidant system was used in the process, the effects of reaction temperature, time and volumic ratio of oxidant and oil were investigated. The results show：under the condition of an ultrasonic frequency of 28 kHz|ultrasonic power of 200 W|the volumic ratio of H2O2 to formic acid 1∶1|extraction solvents N, N-dimethylformamide (DMF)|an extraction time of 10 min and the volumic ratio of extraction solvent to oil is 1∶2, its proper conditions are as follows: volumic ratio of oxidant to oil is 1∶10|reaction temperature is 50 ℃|oxidation time is 10 min|the rate of desulfurization is 87.8%.