Carbon black industry rely on technology to get rid of high pollution and high energy

Previously referred to the production of carbon black, people tend to associate it with high pollution and high energy-consuming such a word. However, domestic production of carbon black, the average consumption of only tons: 380 kwh electricity, water 5 tons, 1.4 tons of steam, 231 kilograms of standard coal equivalent, while gas power generation has become the most common business operations. Carbon black industry is no longer imagine people in high-pollution and high energy-consuming industries.

In the past, due to backward technology, together with the consumption of carbon black raw materials more oil, carbon black industry once considered a high-energy high-polluting industries. As the century before the age of 80, one of the small furnace production capacity from 2000 to 3000 tons, the largest and only 5,000 tons. At that time, the production of 1 ton of carbon black, oil consumption of raw materials in more than 3 tons. Due to backward technology, the device does not filter bags, a lot of dust pollution, the workers tend to become white shirt black shirt, and the surrounding trees have been blackened. From the mid-80s, the gradual introduction of new carbon black business process million-ton furnace, together with the bag filter device, gas and power generation, so that the oil consumption of raw materials fell to 1.8 to 2.0 tons.

Wet granulation can be used to improve the carbon black carbon black collection system, the use of high-quality glass fiber yarn-Zhen Cizhan and expansion of the glass fiber filter, so that the efficiency of filtering 99.5 percent to reach 99.8 percent, the content of carbon black dust control in the 18 mg / Cubic meters or less, take the chimney is white and Ringelmann degree level in the following. To this end, in the late 90's, the carbon black industry to put forward the following out 10,000 tons of furnace, dry granulation method for wet granulation slogans. But in 2002, China's carbon black in pollution, the technology behind 10,000 tons / year of dry granulation also accounted for more than half of the carbon black.

With the business in recent years to enhance the awareness of environmental protection, the carbon black business in new carbon black plant is commonly used when a single furnace can yield the wet granulation method, dry grain production of carbon black plant is now out of basic, 1.5 Tons of furnace oil consumption of raw materials has dropped to below 1.8 tons. In the past two million tons of carbon black industry of the new technology of carbon black plant and a single reactor of the rapid increase in production capacity, the size of the existing business lines and new carbon black production line in the basic one-way capacity 20,000 tons / year to 40,000 tons / year . Large-scale device not only a great improvement to the combustion of carbon black feedstock, the cracking process to enhance product quality, increase product varieties, but also significantly reduces the consumption of products, the size of the carbon black industry enterprises of raw materials oil consumption than two years ago Reduce by 10%.

Now, a lot of carbon black in carbon black production capacity expansion at the same time, increased gas power generation capacity in member enterprises, 50,000 tons / year or more large and medium-sized enterprises with a total generating capacity reached 180,000 kilowatts, the whole In about 1,440,000,000 kwh electricity generation, discount 177,000 tons of standard coal. In addition to the many businesses owned power companies to meet this production, power consumption, but also to the regional power grid, or power supply units, an increase of the economic efficiency of enterprises. If the rubber chemicals industry in Taiwan's power generation capacity of 27,000 kilowatts, Hebei Lone Star Chemical Group for 12,000 kilowatts, big bright Hebei and Shandong in East China Industrial Group Co., Ltd. rubber materials are 10,500 kilowatts, which has a number of enterprises / 2 of the external transmission capacity. General wet granulation carbon black production line, production per ton of carbon black is about 380 kwh of electricity by 0.5 yuan / kwh electricity terms, it was through the tail gas can generate electricity per ton of carbon black to reduce costs 190 yuan. In addition to internal circulation, some enterprises have also implemented a business-to-business cycle. Some companies, such as carbon black and coking plants using carbon black production of coke oven gas as fuel, reducing fuel consumption and lower costs. Black Cat Carbon Black Co., Ltd. of Jiangxi, such as carbon black will exhaust all available to the coking plant's coke oven gas heating is not only conducive to environmental protection, also has carbon black, coke resources, comprehensive utilization of waste heat, as well as in energy-saving solution The tail gas pollution. Black exhaust is a low calorific value and high water, toxic and explosive gases, carbon monoxide, and other harmful ingredients for the use of gas for power generation, can make full use of the chemical heat of the exhaust, better purification effect, has made energy-saving, environmental protection and good Economic benefits.

In addition, many enterprises have increased the carbon black key equipment - air pre-heater temperature, carbon black to improve the yield and reduce oil consumption of raw materials, while also strengthening the response, a decrease of urgency injected into cold water, raising The exhaust heat value, an increase of the stability of the combustion gas boiler. Shijiazhuang in 2005 by the new star of Carbon Co., Ltd. 950 ℃ the first to use ultra-high-temperature air pre-heater, and then, Shanxi letter chi Chemical Co., Ltd., Shanxi, Hong special Chemical Co., Ltd., Shanxi rival Chemical Co., Ltd., Shandong Province in East China Rubber Co., Ltd. and other materials Companies have been installed in 800 ℃ -950 ℃ high temperature air pre-heater, are made to run a good effect.

Now, carbon black products, raw materials used in oil use and production of ethylene by-product of the production of coke, a by-product of coal chemical industry as raw materials to produce carbon black products, coal and oil is a cycle of Economy, Trade and Industry Department in the chain an important part of a The production of carbon black used in the oil should not be used as raw materials to energy consumption assessment, which are among the energy conversion, rather than consumption. Carbon black industry is a coking coal industry and the chemical industry and the petrochemical industry chain, an important component of the low value-added products will be transformed into high value-added tires, rubber industry, an indispensable reinforcement material agents of the important industries .