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Desulfurization and novel sorbents for same

An adsorbent and sulfur removal technology, applied in the field of desulfurization of cracked gasoline and diesel fuel fluid streams, can solve the problem of high cost of hydrogen consumption, and achieve the effects of avoiding octane number, avoiding significant drop, and reducing sulfur content

Inactive Publication Date: 2002-12-11
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

[0101] The reduced nickel metal solid adsorbent was produced as follows: 568 g of diatomaceous earth silica and 945 g of zinc oxide and 189 g of CaSO 4 Dry blending in the mill for 10 minutes produced the first mixture. With continued mixing, a solution containing 241 g of Dispersal alumina (Condea), 850 g of deionized water, and 26 g of glacial acetic acid was added to the mill to produce a second mixture. Mixing was continued for 25 minutes after addition of these components was complete. The second mixture was then dried at 300°F for 3 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. 50 g of the resulting granulated mixture was then impregnated with 37.1 g of the nickel nitrate hexahydrate composition dissolved in 11.7 g of hot deionized water to produce a first impregnated granule. The first impregnated particles were dried at 300°F for 1 hour and calcin...

Embodiment II

[0104] The desulfurization ability of the granular solid nickel adsorbent prepared in Example I was tested as follows.

[0105] A 1 in quartz tube reactor was charged with the sorbent of Example I in the amounts indicated below. The solid nickel sorbent was placed on a frit in the middle of the reactor and reduced with hydrogen at a total pressure of 15 psia and a partial hydrogen pressure of 15 psi for .03 hr. A gaseous cracked gasoline containing about 340 ppm sulfur (parts by weight of sulfur compounds based on the weight of the gaseous cracked gasoline) and about 95 ppm sulfur based on the weight of the gaseous cracked gasoline was pumped upward through the reactor. % by weight thiophenes (eg, alkylbenzothiophenes, alkylthiophenes, benzothiophenes, and thiophenes). The flow rate is 13.4ml / hr. Produces sulfurized solid sorbent and desulfurized gaseous cracked gasoline. In Test 1, hydrogen was added at a partial pressure of 13.2 psi to the cracked gasoline feed, resulting...

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PUM

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Abstract

Particulate sorbent compositions which are suitable for the removal of sulfur from streams of cracked-gasoline or diesel fuel are provided which have increased porosity, improved resistance to deactivation through the addition of a calcium compound selected from the group consisting of calcium sulfate, calcium silicate, calcium phosphate or calcium aluminate to the support system comprised of zinc oxide, silica and alumina having thereon a promotor wherein the promotor is metal, metal oxide or metal oxide precursor with the metal being selected from the group consisting of cobalt, nickel, iron, manganese, copper, molybdenum, tungsten, silver, tin and vanadium or mixtures thereof and wherein the valence of such promotor has been substantially reduced to 2 or less. Process for the preparation such sorbent systems as well as the use of same for the desulfurization of cracked-gasolines and diesel fuels are also provided.

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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IPC IPC(8): B01D53/14B01J20/02B01J20/04B01J20/06B01J20/08B01J20/10B01J20/30B01J20/32B01J20/34C10G25/00C10G29/04C10G29/16
CPCB01J20/02B01J20/045B01J20/06B01J20/08B01J20/103B01J20/28016C10G25/003B01J20/3078B01J20/3204B01J20/3236B01J20/3433B01J20/3458B01J20/3483B01J20/3491B01J2220/42B01J20/28004B01J20/28019B01J20/048B01J20/10
Inventor G·P·卡尔
Owner CHINA PETROLEUM & CHEM CORP
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