Production method of desulfurization and denitrification active coke catalyst

A production method, a technology of nitrating activated coke, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve problems such as not being able to meet the requirements of sintering flue gas treatment

Pending Publication Date: 2020-10-23
宁夏乐天碳素有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Mainly 5㎜, 8㎜, 9㎜, the specific surface area of ​​active coke is 350-450m 2 Between / g, high mechanical strength and other physical characteristics, based on the current desulfurization value of active coke produced by various production plants is 20mg / g, and the denitrification rate is 40%, which cannot meet the treatment requirements of sintering flue gas in steel plants

Method used

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  • Production method of desulfurization and denitrification active coke catalyst

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Effect test

Embodiment 1

[0039] A method for producing a desulfurization and denitrification active coke catalyst, which comprises the following steps,

[0040] a. Raw material preparation process 1: According to parts by weight, mix 3 parts of semi-coke, 2 parts of Shenmu coal, 3 parts of coking coal, 1 part of anthracite and 1 part of catalyst evenly. The catalyst is sodium calcium salt of phthalocyanine cobalt tetrasulfonate, hydroxide Potassium, carbonamide, sodium carbonate, chromium nitrate, vanadium pentoxide and copper nitrate;

[0041] b. Milling process 2: The mixed raw materials are stored in the closed raw material warehouse, and the raw materials are poured into the raw material buffer warehouse through the loader, and then sent to the Raymond mill through the conveyor belt, and the Raymond mill grinds the mixed raw materials Powder, so that the raw materials can pass through the 200-mesh sieve, and the raw materials with qualified particle size are airtightly transported to the raw mater...

Embodiment 2

[0056] A method for producing a desulfurization and denitrification active coke catalyst, which comprises the following steps,

[0057] a. Raw material preparation process 1: According to parts by weight, mix 2 parts of semi-coke, 1 part of Shenmu coal, 2 parts of coking coal, 0.5 part of anthracite and 0.5 part of catalyst evenly. The catalyst is sodium calcium salt of cobalt phthalocyanine tetrasulfonate, hydroxide Potassium, carbonamide, sodium carbonate, chromium nitrate, vanadium pentoxide and copper nitrate;

[0058] b. Milling process 2: The mixed raw materials are stored in the closed raw material warehouse, and the raw materials are poured into the raw material buffer warehouse through the loader, and then sent to the Raymond mill through the conveyor belt, and the Raymond mill grinds the mixed raw materials Powder, so that the raw materials can pass through the 200-mesh sieve, and the raw materials with qualified particle size are airtightly transported to the raw ma...

Embodiment 3

[0073] A method for producing a desulfurization and denitrification active coke catalyst, which comprises the following steps,

[0074] a. Raw material preparation process 1: According to parts by weight, mix 4 parts of semi-coke, 3 parts of Shenmu coal, 4 parts of coking coal, 1.5 parts of anthracite and 1.5 parts of catalyst evenly. The catalyst is sodium calcium salt of cobalt phthalocyanine tetrasulfonate, hydroxide Potassium, carbonamide, sodium carbonate, chromium nitrate, vanadium pentoxide and copper nitrate;

[0075] b. Milling process 2: The mixed raw materials are stored in the closed raw material warehouse, and the raw materials are poured into the raw material buffer warehouse through the loader, and then sent to the Raymond mill through the conveyor belt, and the Raymond mill grinds the mixed raw materials Powder, so that the raw materials can pass through the 200-mesh sieve, and the raw materials with qualified particle size are airtightly transported to the raw...

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Abstract

The invention discloses a production method of a desulfurization and denitrification active coke catalyst. The production method comprises the following steps: a, preparing raw materials: uniformly mixing 2-4 parts by weight of semi-coke, 1-3 parts by weight of Shenmu coal, 2-4 parts by weight of coking coal, 0.5-1.5 parts by weight of anthracite, and 10.5-1.5 parts by weight of a catalyst; b, grinding: grinding the uniformly mixed raw materials to enable 85% or above of the raw materials to pass through a 200-mesh sieve; c, kneading: adding 25-30 parts by weight of a binder and 8-12 parts byweight of water into the ground raw materials, and kneading at 65-90 DEG C; d, manufacturing: sequentially carrying out granulation, first screening, carbonization, second screening, activation, thirdscreening and packaging on the kneaded raw material which is coal paste. According to the prepared sulfur denitration active coke catalyst, the desulfurization value is increased to 25-30 mg / g, and the denitration rate is increased to 50-55%.

Description

technical field [0001] The invention relates to a catalyst production method, in particular to a desulfurization and denitration active coke catalyst production method. Background technique [0002] Activated coke is a kind of black porous solid carbon, which is produced from coal by crushing, molding or carbonization and activation with uniform coal particles. The main component is carbon, and contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. Mainly 5㎜, 8㎜, 9㎜, the specific surface area of ​​active coke is 350-450m 2 Between / g, high mechanical strength and other physical characteristics, based on the current desulfurization value of active coke produced by various production plants at 20mg / g, denitrification rate of 40%, which cannot meet the treatment requirements of sintering flue gas in steel plants. If there is a method, or a high-efficiency catalyst used in production, that can meet the desulfurization value and denitrificat...

Claims

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Application Information

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IPC IPC(8): B01J31/06B01J35/10B01J37/00B01D53/60B01D53/86
CPCB01J31/06B01J37/0027B01J37/0063B01D53/8637B01J35/61
Inventor 赵琼陈宁陈建林张骥王小娟王小军
Owner 宁夏乐天碳素有限公司
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