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  • 产品名称: Semicoke
  • Summary: Semicoke: also known as semi-coke, coke powder, is the use of Shenfu coal-rich high-quality Jura
  • Application site: Metallurgy, chemical, clean fuel, adsorbent
  • Minimum starting sales: 40t
  • * All the above quotations are free shipping and installation costs: 111
  • 币种:
    • Category: Big material Middle material Small material Coke

Semicoke

  Also known as semi-coke, coke powder, is the use of Shenfu coal-rich high-quality Jurassic coal burned, a new type of carbon material.

Features(three high four low):

  Fixed carbon high, high specific resistance, high chemical activity; low ash content, low aluminum, low sulfur and low phosphorus.

specification

  Aniseed, medium material, small material, coke end

 

 

Production process flow chart and description

 

 

The main purpose

  Blue carbon can replace coke (metallurgical coke) and widely used in chemical industry, smelting, gas and other industries, in the production of metal silicon, ferroalloy, ferrosilicon, silicon manganese, fertilizer, calcium carbide and other high energy-consuming products in the process of better than coke; Carbon by-product of coal tar in addition to building ceramics, fuel engines to add oil, but also processing to be phenol, cresol, xylenol and advanced phenolic products and alkanes, aromatic hydrocarbons, gas can be used to generate electricity, the preparation of synthetic ammonia, methanol Such as chemical products, industrial calcined heat and so on.

 

Blue carbon applications

 

(A) the field of metallurgy

 

1, iron alloy reducing agent. Compared with the metallurgical coke, the use of Yulin blue carbon can reduce the power consumption of 10%, power saving 300kWh ~ 500kWh, section coke 70kg ~ 90kg, single furnace production can be increased by 10% or more. From the 90s of last century, iron alloy production basically use blue carbon and metallurgical coke as a reducing agent.

 

2, blast furnace injection materials. In the Shaanxi Iron and Steel, Baotou Steel, Shougang, Baosteel, Jiuquan Iron and Steel and many other iron and steel enterprises to replace anthracite for the blast furnace blast injection materials test. The experiment shows that the magnesia charcoal is better than the existing blast furnace pulverized coal, the preparation of blue powder is technically feasible, while the blue carbon powder to 15% -30% ratio injection is also feasible. 2011 Shenmu County Coal Chemical Industry Office and Anshan Thermal Energy Institute in Anshan Iron and Steel Plant for the "3200 cubic meters blast furnace injection of Shenmu semi-coke powder" field test (semi-coke powder accounted for 15% of total coal) Charcoal injection on the blast furnace without adverse effects, and is conducive to desulfurization, as long as the proportion of semi-coke powder to 10%, can be used to save anthracite more than 30% of the cost.

 

(2) chemical industry

 

1, calcium carbide reducing agent. Benefit from low ash, low aluminum, low phosphorus, high resistivity, blue carbon is used in the calcium carbide industry, can significantly reduce energy consumption, reduce costs and improve product quality.

 

2, fertilizer and gas raw materials. Low-ash, low-sulfur blue charcoal for fertilizer production gas, can improve gas production rate, reduce ash emissions, reduce the amount of gas desulfurization, thereby reducing energy consumption and improve gas quality.

 

3, gasification system synthesis gas. Compared with the direct gasification of low-grade bituminous coal, the gasification of Yulin blue carbon decreased the tar content in the synthesis gas, increased the effective gas content, reduced the burden of the gas purification unit, the material was not easily bonded into the block, and the blue carbon was the potential of the gasification raw material The market is huge.

 

(C) clean fuel field

 

1, civilian fuel. Blue carbon is only one-fifth of the content of coal contaminants, especially sulfur is only one tenth of the raw coal, is a suitable civilian clean fuel, can replace small and medium cities and rural civilian anthracite, especially in the southwest away from anthracite And blue carbon production enterprises around the region, blue carbon with strong market competitiveness. Blue carbon made of smoke-free briquette is a reasonable way of civil use, combustion heat efficiency of up to 75%, sulfur rate of 30% to 40%, dust removal rate of 90%. If the supporting the use of low-temperature flame combustion technology dedicated briquette boiler, do not need supporting dust and desulfurization system, boiler thermal efficiency ≥ 80%, slag carbon content ≤ 4%, soot emission concentration ≤ 10mg / Nm3, SO2 emission concentration <30mg / Nm3, NOx emission concentration <100mg / Nm3, thermal efficiency than the traditional chain boiler about 20%, only about 30% of pollutant emissions.

 

2, power plant mixed with fuel. Blue carbon volatile low, generally 5-7%, up to 10%, also has a low sulfur, low phosphorus, high heat and other characteristics.

 

(D), the focus of the field

 

As early as 1950 to 1960, the American Iron and Steel Association began to study the use of lignite pyrolysis of semi-coke production coke process. Over the past 10 years, with China's low-grade coal, low-temperature pyrolysis industry development, the domestic carried out a series of semi-coke production coke research test. Experiments show that semi-coke powder in the addition of a certain binder or thickener and other active substances, can be used as the main raw material of the focus, and can be made of good quality coke.

 

(5) the field of adsorbents

 

With the rapid development of semi-coke, in recent years, semi-coke-based adsorbents have attracted wide attention at home and abroad and carried out a series of studies, some applications have been developed for the high utilization of blue carbon has developed a new direction.

Quality and Emission Standard of Blue Carbon

Project

Unit

God magnolia technical indicators

Big material

Middle material 

Small material

Coke

Fixed carbon

%

80-85

83-85

80-82

77-80

Calorific value

kcal/kg

6500-7500

6000-6700

6000-6700

5500-6300

Volatiles

%

06-09

07-10

08-10

10-13

Ash

%

8.5-11

08-09

08-10

10-13

Moisture

%

10-18

10-18

10-18

10-18

Total sulfur

%

0.2-0.4

0.2-0.4

0.2-0.4

0.2-0.4

Phosphorus

%

<0.01

<0.01

<0.01

<0.01

Resistivity

μΩm

>29000

>23000

>45000

>78000

Standard sizes

mm

>30

15-30

5--15

<5

 

Quality and Emission Standard of Blue Carbon

Blue carbon air pollution emission standards

Project

Unit

Number

Particulates pm2.5

mg/m3

30

Sulfur dioxide

mg/m3

200

Nitrogen oxides

mg/m3

200

Mercury and compounds

mg/m3

0.05

Smoke blackness (Ringgate blackness)

≤1

 

Comparative Analysis of Blue Carbon and Other Fuels

10 tons of boiler, for example: As can be seen from the table below, a variety of clean fuel in the operating costs, blue carbon accounted for absolute advantage.

Boiler type

Blue charcoal boiler

Biomass boiler

Natural gas boiler

Electric boiler

Main indicators

Initial investment (ten thousand yuan)

110

120

60

115

Service life (years)

10-15

10-15

15-20

10-15

Fuel

Semicoke

Biomass

Gas

Electricity

Hourly energy consumption

1.2T

1.8T

900Nm3

7200kwh

Hourly heat (kcal)

6720000

5760000

7267500

6006240

Fuel costs per hour (yuan)

960

2250

2160

3744

Fuel ignition

7000kcal/kg

4000kcal/kg

8500kcal/Nm3

860kcal/kwh

Boiler efficiency

80%

80%

95%

97%

Fuel price

0.8yuan/kg

1.25yuan/kg

2.4yuan/Nm3

0.52yuan/kwh

 

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