Adsorbents for Octane Boosting in Gasoline

A gasoline octane number and adsorbent technology, which is applied in the direction of refined hydrocarbon oil, petroleum industry, silicates, etc., can solve the problems of low adsorption rate, inability to separate low-octane monomethyl alkanes, poor separation effect, etc. achieve high adsorption selectivity

Active Publication Date: 2018-02-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the technical problems to be solved by the present invention is that the existing binderless 5A zeolite adsorbent cannot separate low-octane monomethyl alkane composition, low adsorption rate, and poor separation effect. It provides a new The adsorbent used to increase the octane number of gasoline can separate monomethyl alkanes with low octane number, and has the advantages of large adsorption capacity, high adsorption rate and good separation effect

Method used

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  • Adsorbents for Octane Boosting in Gasoline
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  • Adsorbents for Octane Boosting in Gasoline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Weigh 1.0 kg of MFI powder with a particle size of 100-900 nanometers (Si / Al=200) and add 0.03 kg of hydroxymethyl cellulose, mix the above powders evenly, and add SiO 2 0.1 kg of 23% sodium silicate is extruded, and the particles of 16-40 mesh are selected to be the adsorbent containing adhesive; In the air stream, roast at 550°C for 3 hours. After cooling, put the adhesive-containing adsorbent into the crystallization liquid. The weight ratio (liquid-solid ratio) of the crystallization liquid to the adsorbent is 3:1; The liquid composition is: containing tetraethylammonium bromide 6.0% by weight percent; the pH value of the crystallization liquid is 9.0 (regulating by weight percent containing 5% sodium hydroxide); the liquid-solid ratio is 3 The mixture of 1:1 was transferred into the crystallization kettle for crystallization, and the second-stage crystallization was carried out. First-stage crystallization conditions, crystallization at 30°C for 4 hours; second-st...

Embodiment 2

[0060] Weigh 1.0 kg of MEL powder with a particle size of 100-900 nanometers (Si / Al=200) and add 0.03 kg of hydroxymethyl cellulose, mix the above powders evenly, and add SiO 2 0.1 kg of 23% sodium silicate is extruded, and the particles of 16-40 mesh are selected to be the adsorbent containing adhesive; In the air stream, roast at 550°C for 3 hours. After cooling, put the adhesive-containing adsorbent into the crystallization liquid. The weight ratio (liquid-solid ratio) of the crystallization liquid to the adsorbent is 3:1; The liquid composition is: containing tetrapropyl ammonium bromide 8.0% by weight percent; the pH value of the crystallization liquid is 9.5 (regulating by weight percent containing 5% sodium hydroxide); the liquid-solid ratio is 3 The mixture of 1:1 was transferred into the crystallization kettle for crystallization, and the second-stage crystallization was carried out. First-stage crystallization conditions, crystallization at 30°C for 4 hours; second-...

Embodiment 3

[0063] Weigh 1.0 kg of BEA powder with a particle size of 100-900 nanometers (Si / Al=200) and add 0.03 kg of hydroxymethyl cellulose, mix the above powders evenly, and add 2 0.1 kg of 23% sodium silicate is extruded, and the particles of 16-40 mesh are selected to be the adsorbent containing adhesive; In the air stream, roast at 550°C for 3 hours. After cooling, put the adhesive-containing adsorbent into the crystallization liquid. The weight ratio (liquid-solid ratio) of the crystallization liquid to the adsorbent is 3:1; The liquid composition is: containing tetraethylammonium bromide 6.0% by weight percent; the pH value of the crystallization liquid is 9.0 (regulating by weight percent containing 5% sodium hydroxide); the liquid-solid ratio is 3 The mixture of 1:1 was transferred into the crystallization kettle for crystallization, and the second-stage crystallization was carried out. First-stage crystallization conditions, crystallization at 30°C for 4 hours; second-stage ...

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Abstract

The present invention relates to a gasoline octane number improving adsorbent, a gasoline octane number improving method and a method for preparing the adsorbent, and mainly solves the problem that 5A molecular sieves in the prior art only can absorb n-alkanes, and cannot adsorb low octane number monomethyl alkanes, the gasoline octane number improving adsorbent comprises at least one of MFI zeolite, MEL zeolite and BEA zeolite, by the technical scheme, the technical problem is well solved, and the gasoline octane number improving adsorbent can be used to produce high-octane gasoline.

Description

technical field [0001] The invention relates to an adsorbent for raising the octane number of gasoline, a method for raising the octane number of gasoline and a preparation method of the adsorbent. Background technique [0002] Environmental issues have attracted worldwide attention, which requires researchers to seek solutions to improve energy efficiency. The end of the era of cheap crude oil will prompt refiners to optimize fuel performance to increase the combustion efficiency of oil-fired engines. As far as gasoline is concerned, its combustion performance is evaluated by the Research Octane Number (RON). The high octane number burns smoothly without deflagration, which can improve the efficiency of the fuel engine. [0003] Light straight run naphtha is a kind of refining material, mainly composed of C5-C7 alkanes, and is a blending component of motor vehicle fuel, such as gasoline. However, research gasoline with these hydrocarbons has a lower octane rating, genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/16B01J20/30C10G25/06
Inventor 钱斌刘仲能王德举余强郭友娣
Owner CHINA PETROLEUM & CHEM CORP
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