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Sorbent composition, process for producing same and use in desulfurization

A technology of adsorbent and composition, applied in the direction of solid adsorbent liquid separation, separation method, silicon compound, etc., can solve the problem of high cost of hydrogen consumption

Inactive Publication Date: 2002-11-27
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of desulfurization from diesel by hydrodesulfurization, the cetane number is improved, but the cost of hydrogen consumption is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0096] The reduced cobalt metal solid sorbent was produced as follows: 20.02 lbs of diatomaceous earth silica and 25.03 lbs of zinc oxide were dry blended in a grinder for 15 minutes to produce a first mixture. While still mixing, a solution containing 6.38 lb Dispersal alumina (Condea), 22.5 lb deionized water, and 316 g glacial acetic acid was added to the mill to produce a second mixture. Mixing was continued for 30 minutes after addition of these components was complete. The second mixture was then dried at 300°F for 16 hours and fired at 1175°F for 1 hour to form a third mixture. The third mixture was then granulated using a Stokes Pennwalt granulator equipped with a 50 mesh screen. 200 g of the resulting granular mixture was then impregnated with 148 g of cobalt nitrate hexahydrate dissolved in 43 g of hot (200°F) deionized water to produce an impregnated granular mixture. The impregnated particles were dried at 300°F for 1 hour and fired at 1175°F for 1 hour. 100 g o...

Embodiment II

[0099] The desulfurization ability of the reduced cobalt solid adsorbent prepared in Example 1 was tested as follows.

[0100] The indicated amount of adsorbent of Example I was charged to a 1 in quartz tube reactor. The reduced cobalt solid sorbent was placed on the frit in the middle of the reactor. Gasoline cracked gasoline containing about 345 ppm sulfur (parts by weight of sulfur-containing compounds based on the weight of the gaseous cracked gasoline) was pumped upward through the reactor and contained Thiophenes (eg, alkylbenzothiophenes, alkylthiophenes, benzothiophenes, and thiophenes) by weight about 95% by weight sulfur compounds. The flow rate is 13.4ml / hr. Produces sulfurized solid sorbent and desulfurized gaseous cracked gasoline.

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Abstract

Particulate sorbent compositions comprising a mixture of zinc oxide, silica, alumina and a substantially reduced valence cobalt are provided for the desulfurization of a feedstream of cracked-gasoline or diesel fuels in a desulfurization zone by a process which comprises the contacting of such feedstreams in a desulfurization zone followed by separation of the resulting low sulfur-containing stream and sulfurized-sorbent and thereafter regenerating and activating the separated sorbent before recycle of same to the desulfurization zone.

Description

field of invention [0001] This invention relates to the desulfurization of cracked gasoline and diesel fuel fluid streams. In another aspect, the invention relates to sorbent compositions suitable for desulfurization of cracked gasoline and diesel fuel fluid streams. In yet another aspect, the invention relates to a process for the production of sulfur sorbents for desulfurization from cracked gasoline and diesel fuel fluid streams. Background of the invention [0002] The need for cleaner fuels has led to ongoing worldwide efforts to reduce the sulfur content of gasoline and diesel fuel. Reducing the sulfur content of gasoline and diesel is considered one of the measures to improve air quality, because sulfur in the fuel has an adverse effect on the performance of automobile catalytic converters. The presence of sulfur oxides in automobile engine exhaust inhibits and can irreversibly poison noble metal catalysts in the converter. Exhaust gases from inefficient or poisone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/00B01J20/06B01J20/08B01J20/10B01J20/30C10G25/00C10G25/06C10G29/04C10G29/16
CPCB01D53/02B01D53/48B01D2253/104B01D2253/106B01D2253/1122B01D2253/1124B01D2253/34B01D2255/20746B01D2255/20792B01D2256/24B01D2257/30B01J20/06B01J20/08B01J20/103B01J20/28016B01J23/80B01J23/94B01J37/0072B01J37/0201B01J37/04B01J37/18B01J38/12B01J2220/42C10G25/003B01J20/3078B01J20/3204B01J20/3236B01J20/0225B01J20/3433B01J20/3458C10G2400/02C10G2400/04
Inventor G·P·卡里
Owner CHINA PETROLEUM & CHEM CORP
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