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Catalyst for clause recovering sulfur containing acidic gas and preparing method

A technology for acid gas and sulfur recovery, applied in molecular sieve catalysts, chemical instruments and methods, sulfur preparation/purification, etc., can solve the problem that the hydrolysis active Claus reaction activity is not ideal, the hydrolysis reaction resistance is not strong, and the activity Alumina Sulfation Poisoning and Other Problems

Inactive Publication Date: 2007-11-14
SANLONG CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst's organic sulfide hydrolysis activity and Claus reaction activity are not ideal, especially its hydrolysis reaction is resistant to "leakage of O". 2 "The ability is not strong, and activated alumina is easy to cause sulfation poisoning. In addition, the basic oxide in the titanium oxide-alumina-based catalyst is easy to cause corrosion of equipment and pipelines under high hydrothermal conditions; in addition, activated alumina is used as Reinforcement material, making the catalyst not cost-effective enough
[0017] CN1210201C discloses a catalyst and preparation method for multifunctional sulfur recovery. The catalyst is composed of 40-60Wt% titanium dioxide, 35-55Wt% activated alumina, and 5-10Wt% iron compound. 2 "The ability is strong, and the phenomenon of sulfation poisoning caused by activated alumina is reduced, and the hydrolysis activity of organic sulfides and the Claus reaction activity are enhanced, but it is still not ideal. In addition, activated alumina is used as a reinforcing material to make the catalyst more cost-effective. not high enough

Method used

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  • Catalyst for clause recovering sulfur containing acidic gas and preparing method
  • Catalyst for clause recovering sulfur containing acidic gas and preparing method
  • Catalyst for clause recovering sulfur containing acidic gas and preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Buy commercially available metatitanic acid [TiO(OH) 2 Wash with deionized water first, and the SO entrained in the metatitanic acid 4 Wash to 3-4% (W), and then press filter with plate and frame filter. Part of the obtained metatitanic acid filter cake (called material A) was dried at 100-120° C. and crushed for later use (called material B).

[0050] Weigh 1200g of material A (containing TiO 2 40%) is placed in the kneader, adds the ammonium sulfate 40g that grinds through the mortar and starts the kneader, makes material and ammonium sulfate mix homogeneously. Then add commercially available 460g structural formula [H Z ][Al 2-x h x ][Si 4-y al y ]O 12 The layered aluminosilicate, wherein X = 0.15, Y = 0.07, Z = 0.22; kneaded in a kneader, during the kneading process added B material 100g. During kneading, add 30 g of scallop powder. The kneading time is about 40 minutes, and then the material is put into the extrusion machine for extruding.

[0051] The ...

Embodiment 2

[0054] Metatitanic acid [TiO(OH) 2 ] Washing step is with embodiment 1. Weigh 1300g of material A (containing TiO 2 40%) is placed in the kneader, adds the ammonium sulfate 40g that grinds through the mortar and starts the kneader, makes material and ammonium sulfate mix homogeneously. Then add commercially available 320g structural formula as [H z ][Al 2-x h x ][Si 4-y al y ]O 12 The layered aluminosilicate, wherein X = 0.15, Y = 0.07, Z = 0.22; kneaded in a kneader, and added 180 g of material B during the kneading process. During the kneading process, add 30 g of scallop powder. The kneading time is about 40 minutes, until it feels tough. Then put this material into extruder for extruding.

[0055] The strips were put into an electric oven, the temperature was controlled at 85° C., and dried for 8 hours, and then dried at 105° C. for 4 hours. Then bake in a temperature-programmed muffle furnace, requiring 2 hours of roasting at 480°C.

[0056] Resulting catalys...

Embodiment 3

[0058] Metatitanic acid [TiO(OH) 2 ] Washing step is with embodiment 1. Weigh 1400g of material A (containing TiO 2 40%) is placed in the kneader, adds the ammonium sulfate 40g that grinds through the mortar and starts the kneader, makes material and ammonium sulfate mix homogeneously. Then add commercially available 284g structural formula [H Z ][Al 2-x h x ][Si 4-y Al y ]O 12 layered aluminosilicate, wherein X = 0.15, Y = 0.07, Z = 0.22; kneaded in a kneader, and added 170 g of material B during the kneading process. In the kneading process, add 30 g of scallop powder. The kneading time is about 40 minutes, until it feels tough. Then put this material into extruder for extruding.

[0059] The strips were put into an electric oven, the temperature was controlled at 85° C., and dried for 8 hours, and then dried at 105° C. for 4 hours. Then bake in a temperature-programmed muffle furnace, requiring 2 hours of roasting at 480°C.

[0060] Resulting catalyst: TiO 2 C...

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Abstract

The present invention relates to a Claus sulfur recovery catalyst containing acidic gas. Said Claus sulfur recovery catalyst can be used in the field of petroleum processing and coal chemical processing technology. Said Claus sulfur recovery catalyst includes the following components: titanium dioxide, its content is 65-85 wt% of total weight of said catalyst, aluminosilicate with laminal structure, its structure formula is [H2] [Al2-xHx] [Si4-y Aly]O12, x=0.15-0.2, y=0.05-0.1 and z=x+y and its content is 30-10wt% of total weight of said catalyst and ammonium sulfate whose content is 1-5 wt% of total weight of said catalyst. Besides, said invention also provides its preparation method.

Description

technical field [0001] The invention relates to a Claus sulfur recovery catalyst used for petroleum processing, coal chemical processing and other acidic gases and a preparation method. Background technique: [0002] 1) Claus sulfur recovery is an environmental protection technology: [0003] In 1883, British scientist C F Claus first proposed the original Claus process; in 1938, German Farben made major reforms to the Claus process; in 1944, the first set of more modern and improved Claus industrial equipment was put into production. The foundation was laid for the modern sulfur recovery process. Claus process (Claus process) has become widely used today from H 2 The main industrial method for recovering sulfur from acid gases. [0004] With the increase of crude oil sulfur content and processing depth, and the increasingly stringent environmental protection emission standards, the number of Claus sulfur recovery units has increased rapidly in the past three decades, and...

Claims

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Application Information

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IPC IPC(8): B01J27/053B01J29/06B01J21/06C01B17/04
Inventor 沈炳龙沈雁鸣沈雁军王忠英沈雁来
Owner SANLONG CATALYST