1 DBSA had effect on the asphaltene aggregation and the relative viscosity was increased with the addition.

2 An asphalteneresin mixture obtained from Daqing crude oil is separated into pentane asphaltene (A) and resin (R).

3 During petroleum thermal conversion, asphaltene yields coke via the second liquid phase and the carbonaceous mesophase.

4 Asphaltene plugging is an important cause of reducing well flow capacity.

5 The thermal weight loss of asphaltene in the pitch road building oil modified with different additives is studied with derivative thermo -gravimetric analyzer in inert atmosphere.

6 The additives could increase the polydispersity of asphaltene colloidal particles as well.

7 The structure characters of asphaltene fraction in the Shenhua coal direct liquefaction residue were studied.

8 Based on the investigation of comprehensive literatures about asphaltene deposition, the physical and chemical deposition mechanism of asphaltene and its plug to pore and throat are summarized.

9 The aggregated asphaltene and the in - situ formed asphaltene the physical and the chemical second liquid phase.

10 The effect of stabilizers on viscosity behavior of petroleum asphaltene solutions was studied with a capillary tube viscosimeter.

11 After modification the content of heptene soluble and toluene insoluble was decreased , the content of asphaltene was increased.

12 The aging kinetic models in the parameter of n-pentane asphaltene were determined for simply discovering the antiaging property of asphalt added ultraviolet absorption antiaging agent.

13 Corresponding source materials were algae, desMonollinite related to terrigenous plant,[] the soluble asphaltene and non-hydrocarbon organic matter preserved in gypSolyte environment.

14 The paper also presents the calculation technique of reference fugacity , and the matching method to saturation pressure and amount of precipitated asphaltene through the example shown in the paper.

15 As their insolubility in organic solvents, long chain fatty acid salts mainly stay with Kerogen and few enter asphaltene fraction.

16 The petroleum solution is a colloidal dispersion in which the asphaltene comprises the micellar nucleus, the resin forms the solvation layer and the remaining gas oil acts as the dispersing medium.

17 The aging kinetic models in the parameter of n-pentane asphaltene is derermined for simply discovering the anti-aging property of regenerated asphalt.