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Composite natural asphalt modified petroleum asphalt

A technology of natural asphalt and petroleum asphalt, which is applied in the processing of tar asphalt/petroleum asphalt/natural asphalt, processing of tar asphalt/petroleum asphalt/natural asphalt, processing tar asphalt/petroleum asphalt/natural asphalt by heating, etc. It can solve the problems of chemical structure differences, unstable properties, high-temperature stratification, etc., and achieve obvious changes, improve application effects, and improve the effect of pungent odor

Active Publication Date: 2022-05-10
江苏鼎峰石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional chemically modified materials are difficult to be used in combination with petroleum asphalt, and chemical materials and petroleum asphalt have obvious chemical structure differences, it is difficult to form a tight interface structure, and it is easy to cause high-temperature stratification and segregation, resulting in unstable properties

Method used

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  • Composite natural asphalt modified petroleum asphalt
  • Composite natural asphalt modified petroleum asphalt
  • Composite natural asphalt modified petroleum asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Described a kind of natural asphalt modified petroleum asphalt is characterized in that, preparation method comprises the following steps:

[0042] (1) Pulverize Xinjiang natural asphalt with a ball mill for 40 minutes, and pass through a 1.18mm square hole sieve to obtain powdered natural asphalt for testing.

[0043] (2) Heat 100g of petroleum asphalt to 180°C to dissolve, add 5g of Xinjiang natural rock asphalt as a modifier, and stir with a glass rod for 30 minutes.

[0044] (3) Add 2 g of multi-walled carbon nanotubes into the above-mentioned mixed pitch, and stir for 15 minutes with a single-blade mixer with a rotation speed of 270 rpm, and for 8 minutes with a double-blade mixer, and the uniformity reaches more than 98%.

[0045] (4) Add 1g of refined naphthenic oil softener, 2g of aromatic solubilizer and 1g of silane coupling agent KH550 to the mixture in (3), and then under the condition of 180°C, use a common Mix with a high-speed mixer. The rotational spee...

Embodiment 2

[0051] Described a kind of natural asphalt modified petroleum asphalt is characterized in that, preparation method comprises the following steps:

[0052] (1) Pulverize Sichuan natural asphalt with a ball mill for 40 minutes, and then pass through a 1.18mm square hole sieve to obtain powdered natural asphalt for testing.

[0053] (2) Heat 100g of petroleum asphalt to 180°C to dissolve, add 6g of Sichuan natural rock asphalt as a modifier, and stir with a glass rod for 30 minutes.

[0054] (3) Add 2 g of multi-walled carbon nanotubes into the above-mentioned mixed pitch, and stir for 15 minutes with a single-blade mixer with a rotation speed of 270 rpm, and for 8 minutes with a double-blade mixer, and the uniformity reaches more than 98%.

[0055] (4) Add 1g of refined naphthenic oil softener, 2g of aromatic solubilizer and 1g of silane coupling agent KH550 to the mixture in (3), and then under the condition of 180°C, use a common Mix with a high-speed mixer. The rotational s...

Embodiment 3

[0061] Described a kind of composite natural asphalt modified petroleum asphalt is characterized in that, preparation method comprises the following steps:

[0062] (1) Pulverize Xinjiang natural asphalt with a ball mill for 40 minutes; pulverize Sichuan natural asphalt with a ball mill for 40 minutes, and then pass through a 1.18mm square hole sieve to obtain the powdered natural asphalt for the test.

[0063] (2) Heat 100g of petroleum asphalt to 180°C to dissolve, add 5g of Xinjiang natural rock asphalt as a modifier, add 6g of Sichuan natural rock asphalt as a modifier, and stir with a glass rod for 30 minutes.

[0064] (3) Add 2 g of multi-walled carbon nanotubes into the above-mentioned mixed pitch, and stir for 15 minutes with a single-blade mixer with a rotation speed of 270 rpm, and for 8 minutes with a double-blade mixer, and the uniformity reaches more than 98%.

[0065] (4) Add 1g of refined naphthenic oil softener, 2g of aromatic solubilizer and 1g of silane coupl...

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Abstract

The invention discloses composite natural asphalt modified petroleum asphalt, which is prepared from the following raw materials in parts by weight: 50 # petroleum asphalt, Xinjiang natural asphalt, Sichuan natural asphalt, multiwalled carbon nanotubes, 1% refined naphthenic oil chemical additive fusion, 2% of solubilizer and 1% of coupling agent. According to the modified petroleum asphalt provided by the invention, the natural asphalt is added, so that the modified petroleum asphalt is safe, green and environment-friendly, waste is turned into wealth, the pungent smell of the modified petroleum asphalt at high temperature is improved, environmental protection and human health are facilitated, and the drilling fluid leaking stoppage performance of the modified petroleum asphalt is improved.

Description

technical field [0001] The invention relates to the petroleum field, in particular to a composite natural asphalt modified petroleum asphalt. Background technique [0002] Petroleum asphalt is the residue after crude oil distillation, which is black or dark brown viscous liquid, semi-solid or solid at room temperature. Petroleum asphalt mainly contains hydrocarbon or non-hydrocarbon derivatives, and its properties and composition vary according to the source of crude oil and production methods. Petroleum asphalt also contains 2% to 3% pitch carbon and carbonoid (black solid powder), which is the largest molecular weight in petroleum asphalt, and it will reduce the cohesive force of petroleum asphalt. Petroleum asphalt also contains wax, which will reduce the cohesiveness and plasticity of petroleum asphalt. The higher the total content of asphalt components, the greater the brittleness of asphalt. At the same time, it is particularly sensitive to temperature (ie, poor temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K3/04C08K5/01C10C3/00C10C3/14
CPCC08L95/00C10C3/005C10C3/002C10C3/14C08L2205/03C08L2205/025C08K2201/011C08K3/041C08K5/01Y02A30/30
Inventor 唐华胡杰刘芹芹王乐乐陈亮于培志
Owner 江苏鼎峰石油科技有限公司
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