Asphalt comprising unconventional asphalt base

A bitumen-based and bitumen technology, which is used in the processing of tar pitch/petroleum pitch/natural pitch, processing tar pitch/petroleum pitch/natural pitch by distillation, and chemically processing tar pitch/petroleum pitch/natural pitch, etc.

Pending Publication Date: 2022-03-01
INST FR DU PETROLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the bitumen disclosed in this patent, the hydroconverted residue must be produced by a hydroconversion process that exhibits a degree of conversion greater than 80%, which presents non-negligible operating constraints

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0229] Example 1: Bituminous Base and Flux

[0230] The following five asphalt bases and the following fluxes were used in the examples of asphalt formulations provided below.

[0231] The three pitch bases pitch 1VR1 (pitch1VR1), VR1 and VRSR were obtained from the vacuum residue of the straight-run primary fractionation (VRSR) of Ural crude oil. Ural crude oil is not a bituminous crude oil, but has formed the subject of many exploration and development studies and constitutes H-Oil TM One of the most widely used feedstocks in the ebullated bed hydroconversion process.

[0232] Two pitch bases, pitch 1VR3 (pitch1VR3), VR3, were obtained from the vacuum residue of the primary fractionation (VRSR) of a mixture of Arabian heavy (AH) and Arabian light (AL) crude oils.

[0233] Bitumen Base Bitumen 1VR1, VR1, Bitumen 1VR3 and VR3 are from the following H-Oil TM Type of ebullated bed hydroconversion process.

[0234] Base bitumen 1VR1: Example of bitumen base B1. This bitumen ...

Embodiment 2

[0264] Example 2: Bitumen according to binary formulation

[0265] The two bitumens according to the invention were formulated according to the following binary mixtures.

[0266] Mixture Mixture 1 (Mix 1): bitumen 1VR1 / VR1 mixture (40 / 60, by weight %)

[0267] Mixture Mixture 2 (Mix 2): bitumen 1VR1 / flux Fs mixture (60 / 40, by weight %)

[0268] The main properties of Bituminous Mixture 1 and Mixture 2 are given in Table 9 below.

[0269] Table 9

[0270] asphalt base unit Mixture 1 mixture 2 Ring and Ball Softening Point (RBT) ℃ 44.8 43.4 Penetration at 25°C 1 / 10 mm 75.3 100 RBT after RTFOT ℃ 53 49.2 Penetration at 25°C after RTFOT 1 / 10 mm 38 52 ΔRBT ℃ 8.2 5.8 % needle penetration maintained at 25°C % 50 52 Penetration range of bitumen before RTFOT 1 / 10 mm 70-100 70-100

Embodiment 3

[0271] Example 3: Bitumen according to a ternary formulation

[0272] The three bitumens according to the invention were formulated according to the following ternary mixtures.

[0273]Mixtures Mixture 3 (Mix3): a mixture of 90.9% by weight bitumen 1VR1 / VR1 (60 / 40) and 9.1% by weight Fs.

[0274] Mixtures Mixture 4 (Mix4): a mixture of 90.9% by weight bitumen 1VR1 / VRSR (60 / 40) and 9.1% by weight Fs.

[0275] Mixtures Mixture 5 (Mix5): a mixture of 87.7% by weight of bitumen 1VR3 / VR3 (60 / 40) and 12.3% by weight of Fs.

[0276] The main properties of bituminous mixes 3 to 5 are given in Table 10 below.

[0277] Table 10

[0278] asphalt base unit Mixture 3 Mixture 4 Mixture 5 Ring and Ring Softening Point (RBT) ℃ 46.0 50.4 51.6 Penetration at 25°C 1 / 10 mm 62 40 29 RBT after RTFOT ℃ 63.2 58.4 57.6 Penetration at 25°C after RTFOT 1 / 10 mm 13 25 17 ΔRBT ℃ 7.8 8 6 % needle penetration maintained at 25°C % 53 ...

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Abstract

Asphalt comprising an unconventional asphalt base is disclosed. The invention relates to a pitch comprising:-40% to 75% by weight of a first pitch base B1 consisting of asphalt obtained by solvent deasphalting of a first vacuum resid R1 resulting from the distillation of the effluent hydroconverted by an ebullated bed hydroconversion process of a heavy hydrocarbon feedstock,-30% by weight of a second pitch base B1 consisting of asphalt obtained by solvent deasphalting of a second vacuum resid R1 resulting from the distillation of the effluent hydroconverted by an ebullated bed hydroconversion process of a heavy hydrocarbon feedstock, b1 has a softening point of 50 DEG C to 110 DEG C, and-25% to 60% by weight of a second asphalt base B2 and / or a fluxing agent F consisting of at least one heavy aromatic fraction having a starting point of greater than 350 DEG C, a 90% distillation point of less than 650 DEG C and a hydrogen content of greater than 8.5% by weight according to standard ASTM D2887, B2 consisting of R1 or a second vacuum resid R2 resulting from crude oil distillation, or consisting of a mixture of R1 and R2. The bitumen comprises up to: 75% by weight of B1, when the bitumen consists of B1 and F; 50% by weight of B1, when the bitumen consists of B1 and B2; and 70% by weight of B1, when the asphalt consists of a mixture of F and B2 and B1, the sum of the weight percentages of B1, B2 and F being equal to 100%.

Description

technical field [0001] The present invention relates to the field of asphalt, in particular to asphalt compositions (such as waterproof asphalt) for road construction and public works. The present invention more particularly relates to bitumen formulated from unconventional bituminous base stocks, particularly comprising bitumen bases consisting of final residues from ebullating bed hydroconversion processes of heavy liquid hydrocarbon feedstocks, i.e. reduced Asphalt obtained by solvent deasphalting of press residue. Background technique [0002] Bitumen (also known as bituminous binder) is a hydrocarbon mixture widely used as surfacing in the field of road construction or civil engineering. Bitumen is generally formed from a mixture of "bitumen bases" conventionally obtained from the processing of crude oil. [0003] Bitumen is usually produced from the residue produced by units used for vacuum distillation of asphaltenes-specific crude oils (called "bitumen crudes") (wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C10C3/00C10C3/02C10C3/06
CPCC08L95/00C10C3/005C10C3/023C10C3/06C08L2205/025C08L91/08C10C3/02
Inventor A·凯尼亚尔W·魏斯I·梅尔德里尼亚克J·巴比耶
Owner INST FR DU PETROLE
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