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Using an FS chemical refining agent can improve the stored stability of RFCC diesel. After being stored for 3 months, colority of refined diesel was 3.0, oxidized total insolubles was 1.9 mg/100 mL, acidity was only 1.6 mg KOH/100 mL, and mercaptan sulfur content was obviously decreasing. The aforementioned data met the criteria of GB252-2000. Yield of diesel has reached 99.8%. Processing cost was just ¥25/t, which fits conditions in China.

Catalytic cracking diesel is chemically refined with FS chemical refining reagent and FS01 complexing-trapped reagent, which are developed by ourselves, to improve the oxidation stability of diesel. The results show that the colority of diesel is decreased, and 54.2% of the basic nitrogen and 79.3% of the existent gum are removed, meantime, the quantity of the insoluble matters content after oxidation is reduced to 0.2 mg/100 mL. The yield of the refined diesel is high, which can reach above 99.8%. After refined, the storage stability of diesel is improved greatly and still meets the requirements of national standard of China GB252-2000. This refining process is simple and low in investment and operation cost, so its applied prospect is extensive.

The ionic liquids used herein were alkyl-containing ammonium-aluminum chloride ionic liquids system, which were made by the reaction of short-chain alkyl ammonium salts and aluminum chloride. The factors influencing stability of gasoline and the importance of improving it were described in this article, so was the characteristic of ionic liquids. A novel way to improve the stability of gasoline using ionic liquids was studied herein, as well as the study of decreasing the basic nitrogen content and the sulfur content of mercaptan, treating the gasoline and decreasing the olefin content of gasoline with supported ionic liquids catalyst on a small scale. After treating, the sulfur content of gasoline decreased to 0 nearly, and the basic nitrogen content decreased greatly too, whereas the octane number (RON) of gasoline increased a little. To improve the catalysis of ionic liquids and prolong the using life of ionic liquids, a buffering agent was added into ionic liquids. Ionic liquids catalyst, as ...

In this article, the structure characteristics of Liaoshu paving asphalts have been studied by the methods of element analysis, SARA and E-D-M. At same time, the relation between composition and structure and using performance of Liaoshu paving asphalt were established. The experimental results show that carbon and hydrogen contents were more than 95%, the hydrogen/carbon atom ratio was about 1.5 in the Liaoshu paving asphalts. The content of saturates is between 20 and 25% in the Liaoshu paving asphalt, aromatics 35 and 40%, resin 25 and 30%, and asphaltene 8 and 10%. There are 45 carbon atoms in the average asphalt molecule, which contain 16–17 aromatic carbon atoms. The number of total ring in the average asphalt molecule is 5–6, the aromatic ring is 3–4, and the naphthene ring is 1–2.

The CoMo/TiA catalyst for hydrodesulfurization (HDS) and its composite support TiA with industrial scale had been produced through the certain process and the studied range of ratio of TiO2/(TiO2 + Al2O3) was enlarged. The good properties of the support TiA were attributed to its special pore structure. When the ratio of TiA/(TiA + Al2O3) was 0.80, the specific surface area of the support and its pore volume reached their maximum respectively. The range of atom ratio of Co/(Co + Mo) of the catalyst CoMo/TiA from 0.25–0.31 proved best, during which activity of the catalyst reached the maximum. The disperse state of TiO2 on the surface of TiA and effect of the promoter Co content on the surface structure of the catalyst had been studied by XRD, LRS and XPS. The analytic results showed that 0.47 g TiO2/g γ-Al2O3 was the schwellenwert for the coverage of TiO2 on the surface of TiA. Beyond this, TiO2 lies on the surface of TiA with a single layer; otherwise, it existed in the form of TiO2 crystal phas...

A series of [B] ZSM-5 zeolite catalysts modified with B3+ have been prepared in this paper and studied for catalytic property in toluene/ethene alkylation reaction. Acidity of the modified catalysts was determined through three methods including TPD, IR and Hammett. The analytical results indicated that after boron had gone into the catalyst channel, the channel and pores were partly blocked by boron oxide and acidity of the modified catalysts have been changed. The results of toluene/ethene alkylation reaction on the modified [B] ZSM-5 zeolite with boron showed that selectivity of p-ethyltoluene reached 96.80% when its catalytic activity was 22.92%. Moreover, the stability of the modified catalyst was also satisfactory.

A system whose partial information is known and partial information is unknown is called gray system. In this paper, the compatibility relationship between Styrene-Butadiene-Styrene (SBS) modifier and base asphalt composition was studied by correlation analysis method. The analysis results of correlation level show that aromatics and asphaltene of base asphalt affect SBS modified effect mainly as the content of SBS is lower, while the content of aromatics and resin become the main effect factors as SBS content is increased.

The effect of different base asphalts on the styrene butadiene styrene (SBS) modification had been studied in this paper and the solubility parameter theory was used to predict its modification effect. The results showed that the compatibility between the base asphalt rich in aromatics and SBS was good. The closer the polarity of the two substances, the smaller the difference of their solubility parameter, the more easily they are miscible. Therefore, the solubility parameter between the modifier SBS and the base asphalt can be used to evaluate their compatibility. To find a suitable blender (or stabilizer) based on the solubility parameter model is one of the best methods to reduce the difference of the solubility parameter between SBS and the base asphalt and decreased the isolation of SBS in the polymer–asphalt mixture.

In this paper, the performances of several kinds of extreme-pressure anti-wear additives were evaluated. The produced machine oil-cutting fluid for band saw had been applied to the industry and its toxicity was tested. The results showed that the admixture of the compounds containing element sulfur and the compounds containing element phosphorous had better anti-wear performance. This kind of cutting fluid had good using performance and could be used more safely.

The high viscous crude from Shuguang No.1 zone of Liaohe oilfield has the characteristics of high contents of resin, asphaltene and low wax content, which belongs to low sulfur naphthene-base crude oil and is ideal material for producing high grade paving asphalt. Waste oil used as blender and stabilizer that is rich in aromatics and poor in wax and styrene butadiene styrene (SBS) were added into vacuum residue of the said crude oil. By reasonable process, various brand SBS modified asphalts meeting JTJ036-98 specification were developed. The modified mechanism and road properties were studied. The laboratory test showed these modified paving asphalts had good low-temperature properties and antiaging feature.

In this paper the aging processes of two penetration-grade paving asphalt which conform to the standard of Esson Company have been studied by rotation thin film oven (RTFO). The first order aging kinetic model has been established and some kinetics parameters were calculated. The relationship between pavement properties of asphalt and aging course was revealed. The intervention of oxygen in high temperature caused oxidation reactions, which changed the composition and structure of asphalt, the aging resistant performance of asphalt was weak, and the service performance went to bad.

In this paper the change of family composition of the paving asphalt, which conforms to the standard of Sinopec Q/SHR-004-1998, was studied under continuous heating and atmosphere at three different temperatures (150, 163, 180°C), at the same time, the changes of pavement performance were studied. The results showed that at three different aging temperatures saturated hydrocarbon contents did not obviously change after 20 hours on aging. The change of aromatic contents was different before and after 20 hours while resins and asphaltenes contents have changed noteworthily. After aging, resins decreased noteworthily, asphaltenes increased obviously, the composition and structure of asphalt were destroyed which had the pavement performance go bad. *Currently, he is studying for his Ph.D. at North-east University under supervisior Zhai Yu-Chun.

The family composition of Daqing heavy fraction oil and the latent content of lubricating oil by mass spectrography and slovent dewaxing methods were determined, and then compared with document data.The change of Daqing heavy distillate is discussed.The results show Daqing crude oil and its distillates have the trend to be heavier,but its heavy distillates are still suitable for catalytic stocks of heavy catalytic cracking and its residuum can be also used for the feed stocks and other wide uses. We hope the analysis results can provide scientific basis for refineries.

The characteristics of the high viscous crude from No. 1 Shuguang Zone of Liaohe Oil Field are similar to those of residue distillates of general crude such as high density(ρ 20=0·9977 g.cm-3),high viscidity υ 100= 1223·9 mm2.s-1) and high carbon/hydrogen ratio. This oil contains less wax, but rich in resin and asphalt, which belongs to low sulfur naphthene-base crude oil and can be used as feedstock to produce high paving asphalt. But now it is used as fuel after emulsificating. In order to make full use of this oil and resolve the problem of paving asphalt demand-supply, various paving asphalts conforming to GB50092-96 standard were produced by blending vacuum residue of the high viscous crude from No.l Shuguang Zone of Liaohe Oil Field and waste oil which is rich in aromatics and poor in wax. The laboratory test results show that modified paving asphalts have good low-temperature properties and antiaging feature.

The fraction compositions, group compositions and structure compositions of seven catalytic stocks were determined by means of vacuum distillation, mass spectrum, element analysis and molecular mass measurement. The effects of the compositions of different catalytic stocks on catalytic cracking reactions were discussed. It is shown that tae gum and asphaltene in the seven catalytic stocks were not very high except residual oil; The saturated hydrocarbon in the seven were all higher; Aromatic contents were lower except slurry oil and recycle oil, therefore, the seven catalytic stocks except slurry oil and recycle oil are all good feedings to catalytic cracking unit. The results also show Liaohe oil turns heavier from low sulphur middle-paraffin base to low sulphur naphthene-middle base.

Six catalytic cracking stocks from SHENBEI oil, which include recycle stock, coker gatch, sweat oil, residual oil and mixed feed, were analyzed by means of vacuum distillation, n-d-m, E-d-m, mass spectrum and elemental analysis. The fraction compositions, hydrocarbon compositions and element contents of the six catalytic cracking stocks were determined. The effect of compositions of various catalytic stocks on catalytic cracking reaction was discussed. Results show that the gum and asphaltene in the six stocks were lower except residual oil, but saturated hydrocarbon were all high; aromatics in the six stocks except slurry oil and sweat oil were lower, which are suitable for catalytic cracking units. There will be a big potential uses for the residual oil as catalytic stocks.

The Synthesis of mixed alcohols esterified copolymer of maleic anhydride with acrylic alkyl ester, olefins and styrene(MOAS) as pour-point depressant (PPD) for diesels was introduced. By using the synthesized MOAS, the pour-point (PP) and cold filter plugging point (CFPP) of the tested diesels made from Daqing crude oils were lowered obviously as those did by other PPDs. Meanwhile the machanism of its function was investigated.

The Synthesis of three kinds of alcohols esterified copolymer of maleic anhydride and olefins (MOVAS) as pour-point depressant (PPD) for diesels was introduced. By using the synthesized MOVAS, the pour-point (PP) and cold filter plugging point (CFPP) of-10# diesel from No. 2 Refinery were lowered by 18°Cand 9°C, respectively. It can also lower PPs and CFPPs of other diesel fuels. Meanwhile using conditions and affecting factors were investigated.

The synthesis and using conditions of esterified copolymer of maleic anhydride and vinyl acetate (ESMVA) as pour-point depressant for diesel fuels were investigated. ESMVA was produced by using Maleic a hydride, vinyl acetate and 1-tetradecyl alcohol as raw materials, benzene and toluene as solvents, azobisisobutyronitrile (AIBN) as initiator, p-toluene sulfuric-acid as catalyst, at 138°C, for 6h. It was used in 10 diesel samples. PP(Pour-Point) of 0# diesel from Jinzhou Refinery was lowered by 14∼23°Cand CFPP(Cold Filter Plugging Point) 2∼4°C, PP of 0# diesel from Yanshan Refinery 16∼30°C and CFPP 2°C. Depression mechanism of ESMVA was discussed.

The synthesis of esterified copolymer of maleic anhydride/olefines mixture and its effect as pour point depressant for crude oil and heavy oil products were studied. The optimum ratio of the maleic anhydride/mixed a-olefines for the synthesis of EsMAOC is 1:6.29. On Daqing crude oil, the adequate addition amount of EsMAOC is 0·5–1.0 wt% when the decrease of pour point can reach to 8–10°C. To Anshan heavy diesel oil No. 20, the data are 1·0 wt%, 13°C respectively.