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Liquid-phase antichlor and preparation method and application thereof

A dechlorination agent and liquid phase technology, which is applied in the field of liquid phase oil purification, can solve the problem of unsolved liquid phase dechlorination agent and other problems, and achieve the effects of neat crystal structure, high dechlorination and chlorine capacity, and improved structural stability.

Active Publication Date: 2016-07-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dechlorination agent is used at high temperature and does not solve the problems of the liquid phase dechlorination agent

Method used

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  • Liquid-phase antichlor and preparation method and application thereof
  • Liquid-phase antichlor and preparation method and application thereof
  • Liquid-phase antichlor and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The preparation of embodiment 1 liquid phase dechlorination agent

[0060] Mg(NO 3 ) 2 ·6H 2 O, 3.5g of Ca(NO 3 ) 2 4H 2 O, 5g of Al 2 (SO 4 ) 3 18H 2 O. Add 6.7g of urea into a beaker containing 64.4g of distilled water, stir at room temperature for 15min, then place the solution in an autoclave for crystallization at 170°C for 6h, filter, wash and dry at 80°C for 3h Molded, and finally roasted in a tube furnace at 400°C for 0.5h to obtain the finished dechlorination agent A.

Embodiment 2

[0061] The preparation of embodiment 2 liquid phase dechlorination agent

[0062] Mg(SO 4 ) 2 ·7H 2 O, 2.1g of Ca(NO 3 ) 2 4H 2 O, 6.6g of Al(NO 3 ) 3 9H 2 O. Add 6.7g of ammonium carbonate to a beaker containing 64.4g of distilled water, stir at room temperature for 15min, then place the solution in an autoclave for crystallization at 140°C for 8h, filter and wash, then dry at 80°C for 3h After molding, it is finally baked in a tube furnace at 700°C for 1.5 hours to obtain the finished dechlorination agent B.

Embodiment 3

[0063] The preparation of embodiment 3 liquid phase dechlorination agent

[0064] Mg(SO 4 ) 2 ·7H 2 O, 2.0g of Ca(NO 3 ) 2 4H 2 O, 4.4g of Al(NO 3 ) 3 9H 2 O. Add 4.2g of urea into a beaker containing 64.4g of distilled water, stir at room temperature for 15min, then place the solution in an autoclave for crystallization at 170°C for 6h, filter, wash and dry at 80°C for 3h Molded, and finally roasted in a tube furnace at 450°C for 2.5 hours to obtain the finished dechlorination agent C.

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PUM

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Abstract

Liquid-phase antichlor is formed by a composite crystal structure comprising an active component and an auxiliary component.The active component is at least one of magnesium oxide, calcium oxide, magnesium carbonate and calcium carbonate.The auxiliary component is alumina or iron oxide.A preparation method of the liquid-phase antichlor includes the steps of a, preparing active component precursor, auxiliary component precursor and precipitator into reaction mixture; b, placing the mixture obtained in the step a into a high-pressure kettle, and stirring for crystallization for 3-8 hours under 130-190 DEG C in a sealed manner; c, filtering, washing, drying and forming the reaction products obtained in the step b; d, calcining the formed material obtained in the step c to obtain the finished antichlor.

Description

technical field [0001] The invention belongs to the technical field of liquid-phase oil purification, and in particular relates to a dechlorination agent for removing hydrogen chloride in reformed oil. Background technique [0002] There are two sources of chlorine in the catalytic reforming process: one is that chlorides (mostly organic chlorides) are often added to increase oil recovery when exploiting crude oil. While the oil recovery rate increases, it also leads to an increase in the chlorine content in crude oil. During the pre-hydrogenation process of reforming raw materials, this part of organic chlorine will be converted into inorganic chlorine, which will combine with hydrogen to form hydrogen chloride. The organic nitrogen compounds in the reforming raw material will be converted into ammonia during the pre-hydrogenation process, and the aforementioned hydrogen chloride and ammonia will react to form ammonium chloride, which will cause blockage and corrosion of e...

Claims

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Application Information

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IPC IPC(8): B01J20/08B01J20/06B01J20/30C10G25/00C10G29/16
Inventor 桂建舟邓子龙郭奇刘升刘海波王英杰冯振学王昌东于洋逄作顺刘丹
Owner PETROCHINA CO LTD
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