[Solve] find out! Supercritical emissions or solve coal-fired pollution problems?
In northern China, most of the cities in 2015 polluted the entire year more than 150 days, most of the days in winter. In this regard, the relevant experts said that the main reason is that China is a large country of coal production and use of energy, and coal energy compared to petrochemical energy has a lower cost advantage. However, the pollution of petrochemical energy can be improved by technological transformation of products (gasoline are upgraded to the national V standard) to be treated to obtain a good social and economic benefits, then the coal-fired industry can also carry out technological transformation of the pollution of the upgrade?
It is understood that the beginning of Shandong Province started the continuous introduction of policies to encourage enterprises to encourage more investment in environmental protection more improvement, but also stepped up efforts to punish environmental violations. One of the more prominent of these policies is to urge coal-fired enterprises to save energy and reduce emissions through various means.
Recently, with the above questions, the reporter visited a printing and dyeing enterprise in Shandong Province that used coal-fired for technological innovation to reduce pollution discharge - Shandong Changle Songjiang Printing and Dyeing Co., Ltd. (hereinafter referred to as "Songjiang Printing and Dyeing Company") to find out and hopefully find a satisfactory answer .
In Songjiang Printing and Dyeing Company's factory area, the reporter saw the large number of industrial boilers used here. The coal inlet always kept sending dark coal to the furnace, but the top of the tall boiler chimney did not see any flue gas of black or yellow or white.
Songjiang printing and dyeing company's chief technology officer told reporters that this is our just launched environmental projects (industrial coal-fired boiler supercritical emissions system). "Supercritical emission system" is due to a critical point of chemical reaction. The emission targets achieved by this system have fully met and exceeded the ultra-low emission requirements of 2018, reaching the critical value.
"The biggest highlight of this supercritical emission system is a breakthrough in low-temperature denitration technology." According to the technicians, the reason why the denitration at a low temperature and the denitrification of small boilers and chain furnaces were difficult in the past ten years was because the mainstream denitration technology in the world was Selective catalytic reduction or non-selective catalytic reduction, also known as SCR or SNCR method, this method is very harsh on the temperature, requires 800 degrees Celsius, and chain boiler and small boiler flue gas temperature is often less than 150 degrees can not be used SCR Program, and the low-temperature denitrification technology of the supercritical emission system has filled this gap.
The denitrification program adopted by the supercritical emission system is called wet chelation denitration technology, and the biggest technical bottleneck it solves is the nitric oxide dissolution problem. According to the technicians, the nitrogen oxides in flue gas (what we call "nitrates") mainly exist as nitric oxide and nitrogen dioxide, which can be dissolved in water and further oxidized to nitric acid, which can be Alkali fixed down to become a stable salt, but nitric oxide is insoluble in water, and nitrogen oxides in flue gas nitrogen accounted for more than 90%, seriously hindered the development of low-temperature denitration technology.
It is understood that Beijing Chunzhi Green Technology Research Institute and China Eco-civilization think tank expert Dr. Su Tongxing in the root river when the fungus base to discover where the coal-fired boiler to bring serious air pollution Problem, then led the team began to tackle this topic of low temperature denitrification. He believes that the most viable low-temperature denitrification is wet, and the core of wet-method is to "pull" water-insoluble nitric oxide into the water. So he worked hard for this technology for three years Tough battle, he finally led the team to synthesize a series of complex molecules, such as crabs have many "small claws", these "claws" have different shapes (chemically called polar), some "claws" The shape is close to nitric oxide, others are close to water, like the tailor-made card slots (chemically known as the principle of similar compatibility), you can firmly grasp the molecules such as nitric oxide, oxygen, tight Clinging to water, in this way will refuse to nitric oxide water and dragged into the water and a series of redox reactions occur, and then combined with alkali to generate stable non-toxic salts.
Wang Faqing, general manager of Songjiang Printing and Dyeing Company, said in an interview with reporters that 25% of coal is used by small enterprises and the pollution accounts for 85%. So the technology of supercritical emission system is of great significance. The equipment is uncomplicated and the operation and operation are very simple. The most important thing is that it solves the problem of denitrification of 10t-100t medium and small sized boilers and chain furnaces, and does not produce wastewater residue and solid materials, Let enterprises not for a penalty, two detention, three shut down the issue of environmental concerns. It has turned coal into clean energy and solved the difficult problem of insufficient supply of natural gas and high costs that small businesses can only shut down, in line with China's energy mix.
PD Toys plastic Co., Ltd is OEM & ODM manufacturer of inflatable products in the mainland of China with more 17 years of manufacturing experience. products ranges are Inflatable Toys, inflatable pools, inflatable pool floats, towable tubes, Air Furniture and Promotional Items etc. total have more than 1500 employees (4 factories) related to PVC inflatable products.
Operated under ISO 9001:2015 management system, We had passed factory Audit by Walmart, Taret, Disney ect, also passed all necessary certificates and testing such as ICTI, BSCI, SEMTA,Target FA, NBC Universal, FCCA, SGS, CVS Security, GSV, Disney FAMA ect. We have our own PVC raw materials manufacturing company, all the PVC we produced are compliance with European EN71, American ASTM standard and NON PHTHALATE (6P) standard.
Punching Bag For Kids,Punching Bag Stand,Bop Bag,Punching Bag
P&D Plastic Manufacture Co., Ltd , https://www.jmpoolfloat.com