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Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock

A technology for aromatic hydrocarbon compounds and liquefied petroleum gas, applied in the field of producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon raw materials

Inactive Publication Date: 2004-02-25
SK INNOVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strong hydrogenation activity of this metallic component causes another side reaction, converting aromatics to naphthenic compounds by hydrogenation

Method used

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  • Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock
  • Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Mordenite having a silica / alumina molar ratio of 20 was mixed with γ-alumina as an inorganic binder, and then shaped into a mixed carrier having a mordenite content of 75% by weight. In step, add H to it 2 PtCl 6 aqueous solution and SnCl 2 of aqueous solution. At this time, 0.05 parts by weight of platinum and 0.5 parts by weight of tin were added to the mixed carrier based on 100 parts by weight of the mixed carrier composed of mordenite and the binder. After being formed into a diameter of 1.5 mm and a length of 10 mm, it was dried at 200° C. for 12 hours, and then calcined at 500° C. for 4 hours to obtain a catalyst.

[0049] By using the catalyst prepared above, a reaction test was carried out, the conditions and results of which are listed in Table 1 below.

Embodiment 2

[0051] A ZSM-5 type zeolite having a silica / alumina molar ratio of 30 was mixed with γ-alumina as an inorganic binder, and then formed into a mixed carrier having a ZSM-5 type zeolite content of 75% by weight. In step, add H to it 2 PtCl 6 aqueous solution and SnCl 2 of aqueous solution. At this time, 0.05 parts by weight of platinum and 0.5 parts by weight of tin were added to the mixed carrier based on 100 parts by weight of the mixed carrier composed of the ZSM-5 type zeolite and the binder. After being formed into a diameter of 1.5 mm and a length of 10 mm, it was dried at 200° C. for 12 hours, and then calcined at 500° C. for 4 hours to obtain a catalyst.

[0052] By using the catalyst prepared above, a reaction test was carried out, the conditions and results of which are listed in Table 1 below.

Embodiment 3

[0054] A ZSM-5 type zeolite having a silica / alumina molar ratio of 30 was mixed with γ-alumina as an inorganic binder, and then formed into a mixed carrier having a ZSM-5 type zeolite content of 75% by weight. In step, add H to it 2 PtCl 6 aqueous solution and Pb(NO 3 ) 2 of aqueous solution. At this time, 0.05 parts by weight of platinum and 0.15 parts by weight of lead were added to the mixed carrier based on 100 parts by weight of the mixed carrier composed of the ZSM-5 type zeolite and the binder. After being formed into a diameter of 1.5 mm and a length of 10 mm, it was dried at 200° C. for 12 hours, and then calcined at 500° C. for 4 hours to obtain a catalyst.

[0055] By using the catalyst prepared above, a reaction test was carried out, the conditions and results of which are listed in Table 1 below.

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Abstract

Fisclosed are a process for producing aromatic hydrocarbon compounds and liquefied petroleum gas (LPG) from a hydrocarbon feedstock having boiling points of 30-250 DEG C and a catalyst useful therefor. In the presence of said catalyst, aromatic components in the hydrocarbon feedstock are converted to BTX-enriched components of liquid phase through hydrodealkylation and / or transalkylation, and non-aromatic components are converted to LPG-enriched gaseous materials through hydrocracking. The products of liquid phase may be separated as benzene, toluene, xylene, and C9 or higher aromatic compounds, respectively according to their different boiling points, while LPG is separated from the gaseous products, in a distillation tower.

Description

field of invention [0001] The present invention generally relates to a process for the production of liquid-phase aromatic hydrocarbon compounds and gas-phase non-aromatic hydrocarbon compounds such as liquefied petroleum gas (LPG) from hydrocarbon feedstocks and catalysts used in the process. More specifically, the present invention relates to the conversion of aromatic compounds in hydrocarbon feedstocks with a boiling point of 30 to 250°C into oils containing BTX (benzene, toluene and xylene) through dealkylation and / or transalkylation Components, and methods for converting non-aromatic compounds into LPG-rich gaseous components through hydrocracking reactions; and catalysts for said methods. Background of the invention [0002] Typically, aromatics are separated by solvent extraction of aromatics-rich feedstocks such as reformate from reforming processes and naphtha cracking processes The obtained pyrolysis gasoline. The above-mentioned aromatic hydrocarbons are separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/068B01J29/18B01J29/22B01J29/40B01J29/44B01J37/00C07B61/00C07C4/18C07C5/27C07C9/02C07C15/04C07C15/06C07C15/08C10G45/64C10L3/10
CPCB01J37/0009B01J29/22B01J29/405B01J29/068C10G45/64B01J2229/42B01J29/185B01J29/44
Inventor 崔烍吴承勲金容昇林炳秀成京学
Owner SK INNOVATION CO LTD
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