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Organic sulfur hydrolysis catalyst applicable to natural gas large-scale sulfur recovery device and preparation method thereof

A technology of hydrolysis catalyst and sulfur recovery, which is applied in the direction of catalyst activation/preparation, sulfur preparation/purification, catalyst carrier, etc., and can solve the problem of high organic sulfur content

Active Publication Date: 2015-07-15
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problem of high organic sulfur content encountered in the treatment of natural gas by large-scale sulfur recovery equipment, and to meet the quality requirements of natural gas leaving the factory

Method used

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  • Organic sulfur hydrolysis catalyst applicable to natural gas large-scale sulfur recovery device and preparation method thereof
  • Organic sulfur hydrolysis catalyst applicable to natural gas large-scale sulfur recovery device and preparation method thereof
  • Organic sulfur hydrolysis catalyst applicable to natural gas large-scale sulfur recovery device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Weigh the specific surface as 422m 2 1 kg of aluminum hydroxide dry glue with a pore volume of 1.10 ml / g and a pore volume of 1.10 ml / g is placed in a roasting furnace, and dehydrated and dried for 2 hours at 550 ° C. Weigh 4 kg specific surface is 320m 2 Calcium oxide of 99% calcium oxide is the fast de-powder of aluminum hydroxide of 0.41ml / g of pore volume 0.41ml / g and 50 grams of purity, mixes evenly with the aluminum hydroxide dry glue after the dehydration.

[0110] Take by weighing 402 grams of acetic acid with a purity of 99.5%, dissolve it in water, stir evenly, and configure it as a binding agent. Put the uniformly mixed solid material in the rolling ball machine, slowly spray the prepared binder into the mixed solid material, rotate the rolling ball to form, and get Catalyst pellets are prepared by aging the pellets in a water vapor atmosphere at 100°C for 20 hours, drying at 120°C for 4 hours, and calcining at 400°C for 3 hours to prepare the catalyst carr...

Embodiment 2

[0112] Weigh the specific surface as 422m 2 1 kg of aluminum hydroxide dry glue with a pore volume of 1.10 ml / g and a pore volume of 1.10 ml / g is placed in a roasting furnace, and dehydrated and dried for 2 hours at 550 ° C. Weigh 5 kg specific surface is 320m 2 Calcium oxide of 99% calcium oxide is the quick de-powder of aluminum hydroxide of 0.41ml / g of pore volume 0.41ml / g and 60 grams of purity, mixes evenly with the aluminum hydroxide dry glue after the dehydration.

[0113] Take by weighing 402 grams of acetic acid with a purity of 99.5%, dissolve it in water, stir evenly, and configure it as a binding agent. Put the uniformly mixed solid material in the rolling ball machine, slowly spray the prepared binder into the mixed solid material, rotate the rolling ball to form, and get Catalyst pellets are prepared by aging the pellets in a water vapor atmosphere at 100°C for 20 hours, drying at 120°C for 4 hours, and calcining at 400°C for 3 hours to prepare the catalyst ca...

Embodiment 3

[0115] Weigh the specific surface as 422m 2 1 kg of aluminum hydroxide dry glue with a pore volume of 1.10 ml / g and a pore volume of 1.10 ml / g is placed in a roasting furnace, and dehydrated and dried for 2 hours at 550 ° C. Weigh 4 kg specific surface is 320m 2 Calcium oxide of 99% calcium oxide is the fast de-powder of aluminum hydroxide of 0.41ml / g of pore volume 0.41ml / g and 50 grams of purity, mixes evenly with the aluminum hydroxide dry glue after the dehydration.

[0116] Take by weighing 402 grams of acetic acid with a purity of 99.5%, dissolve it in water, stir evenly, and configure it as a binding agent. Put the uniformly mixed solid material in the rolling ball machine, slowly spray the prepared binder into the mixed solid material, rotate the rolling ball to form, and get Catalyst pellets are prepared by aging the pellets in a water vapor atmosphere at 100°C for 20 hours, drying at 120°C for 4 hours, and calcining at 400°C for 3 hours to prepare the catalyst car...

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Abstract

The invention is an organic sulfur hydrolysis catalyst applicable to a natural gas large-scale sulfur recovery device and a preparation method thereof, and belongs to a method of removing sulfur compounds in mixed gas by a catalytic method. The catalyst comprises a catalyst carrier and a catalyst active component, and is characterized in that the carrier is composed of Al2O3 and CaO, and the active component is K2O. The catalyst comprises the following chemical substances in parts by weight: 78.0-97.9 parts of Al2O3, 0.1-2.0 parts of CaO, and 2.0-20.0 parts of K2O. Provided is the organic sulfur hydrolysis catalyst used in the natural gas large-scale sulfur recovery device, wherein the catalyst has large specific surface area, large pore volume and high low-temperature organic sulfur hydrolysis activity. The specific surface area of the catalyst is greater than 300 m<2> / g, the pore volume of the catalyst is greater than 0.35 ml / g, and thus the catalyst is ensured to have good catalytic activity. With the use of the catalyst and under certain conditions, the hydrolysis rate of organic sulfur in natural gas can reach 99% or more, and can meet sulfur compound removal technical requirements of the large-scale sulfur recovery device in natural gas purification industry. Moreover, natural gas products are ensured to reach technical indexes stipulated by national standards.

Description

technical field [0001] The invention relates to an organic sulfur hydrolysis catalyst suitable for a large natural gas sulfur recovery device and a preparation method thereof. It belongs to the method of removing sulfur compounds in mixed gas by catalytic method. Background technique [0002] The proportion of natural gas in the world's primary energy consumption structure has reached about 25%, surpassing coal to become the second place, and has become an important energy source. At present, in the natural gas purification process, the sulfur recovery device mainly adopts the Claus process and a small amount of Selextox and other processes, and the tail gas treatment device mainly uses SCOT, CBA and MCRC processes. With the continuous expansion of natural gas extraction, the scale of natural gas purification equipment, such as sulfur recovery equipment, is getting larger and larger. Large-scale sulfur recovery equipment is the future development direction. Because it can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/04B01J32/00B01J23/02B01J21/04B01J37/02C10L3/10C01B17/05
Inventor 刘爱华达建文刘剑利陶卫东王建华刘增让
Owner CHINA PETROLEUM & CHEM CORP
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