Production status and market analysis of methyl ethyl ketone
1. Production status The current industrialization or industrialization prospects of methyl ethyl ketone synthesis methods are mainly two-step method of butene, isobutylene, butene gas phase oxidation, butane liquid phase oxidation, fermentation and so on. Since its industrialization in the 1960s, methyl ethyl ketone has grown at a rate of 5 to 10% globally. At present, the total production capacity in the world is about 1.2 million t/a and the actual output is about 900,000 t/a. Production and consumption are mainly concentrated in the United States and Western Europe. Japan and other industrialized countries and regions.
As early as the 1960s, China established a 1700t/a methyl ethyl ketone production facility at Fushun Petrochemical No. 2 Plant. Due to problems such as process and equipment corrosion and pollution, the actual output has been hovering around 200t, and it is difficult to meet both product quality and quantity. Domestic market demand. After the 1990s, China began to vigorously develop the development of methyl ethyl ketone, and successively built multiple sets of methyl ethyl ketone production equipment. At present, the main domestic manufacturers of methyl ethyl ketone are Heilongjiang Petrochemical Plant, Jiangsu Taizhou Petrochemical Plant, Jinan Refinery, Fushun Petroleum Plant, and Hubei Jingmen Refinery, Jiangsu Zhongdan Group Company, etc. The total production capacity is about 50,000 t/a. In recent years, the development of methyl ethyl ketone in China has been rapid, and many companies are or are planning to build and expand production facilities. It is estimated that by the end of 2002, the total production capacity of methyl ethyl ketone in China will reach 80,000 t/a. Although the domestic production of methyl ethyl ketone has grown rapidly, due to many factors, the actual output of domestic companies is low. Coupled with the rapid increase in domestic demand, it is difficult for domestic production to meet domestic demand. In recent years, imports have been on the rise. From 1997 to 2000, the imports of methyl ethyl ketone in China were 66,600 t, 79,500 t, 90,800 t, and 102,100 t respectively.
2. Applications and Markets In recent years, the production and demand of methyl ethyl ketone in the world is relatively stable. There is no new large-scale methyl ethyl ketone plant in the world. The consumption of methyl ethyl ketone in the world is 63% for coatings, 11% for tapes, 9% for chemical materials, and 7 for adhesives. %, other 10%. In 2000, the total production of methyl ethyl ketone in the world reached 88-900,000 tons, and the total demand was about 890,000 tons. The balance between production and demand was basically balanced. Methyl ethyl ketone in China is mainly used for coating, solvent dewaxing, and tape production. In addition, there is a certain amount of consumption in neoprene adhesives and polyurethane adhesives.
In terms of coatings, the coatings produced in the past in China were of low grade, combined with the import of methyl ethyl ketone, which was expensive. Therefore, there was little or no methyl ethyl ketone in the coatings, while the foreign high-grade coatings contained 30% solvent, of which the methyl ethyl ketone in the solvent formulation accounted for about 20%. . With the rapid development of China's national economy, especially the rapid development of the construction and automotive industries, the demand for high-grade coatings is increasing. In recent years, the paint industry in China has developed rapidly. Many famous foreign paint manufacturers have established wholly-owned or joint ventures in China. For example, Japanese paint company invested 6 million US dollars in 1998 to expand its second phase in Shanghai, producing paint supplies. Shanghai General Motors Corporation, which invested 8 million U.S. dollars to build a paint factory in Guangzhou in late 1998 to supply Guangzhou Honda Automobile Co., Ltd., also invested US$5 million in a construction paint production plant in Langfang, Hebei. British Taikoo Paint Company invested nearly RMB 200 million to build a decorative paint production plant in Shanghai. These large quantities of high-grade coatings were put into production and use, which greatly increased the consumption of methyl ethyl ketone in the coatings. It is estimated that in 2002 the paint industry needs methyl ethyl ketone 85,000 tons. At present, the content of methyl ethyl ketone in most of the high-grade acrylic and polyurethane coating solvent formulations in China is far below the world average. In addition, the rapid development of the automobile and construction industry in China has led to the ever-increasing grades of Home Decoration. Therefore, the demand for methyl ethyl ketone in the domestic paint industry is huge.
Lubricating oil dewaxing, methyl ethyl ketone can be used as petroleum dewaxing to produce lubricating oil in the oil refinery. According to statistics of Sinopec in 2000, its affiliated company used about 13,000 tons of methyl ethyl ketone for oil dewaxing. It is expected that domestic methyl ethyl ketone will be consumed for dewaxing of lubricating oil in 2002. More than 14,000 tons. Methyl ethyl ketone is used as a good solvent for polyurethane in tape production. It is expected that in 2002 China will produce 80 billion m tape, which will require about 5000 tons of methyl ethyl ketone. In terms of adhesives, domestic demand has increased at a faster pace and it is expected that about 1,800 tons of methyl ethyl ketone will be consumed in 2002. Demand will increase further in the future. In other areas, the demand for methyl ethyl ketone is also steadily increasing. It is estimated that about 12,000 tons of methyl ethyl ketone will be consumed in 2002.
To sum up, it is expected that by 2002 China will need a total of 118,800 tons of methyl ethyl ketone.
3. It is suggested that methyl ethyl ketone is an important petrochemical raw material, assuming that the existing domestic production capacity plus several sets of devices to be built are all at full capacity, and there is still a large gap compared to domestic demand, and the production line process behind the early construction is not considered. , The quality of the product is not closed because of the production or semi-discontinued production. In the coming years, China's auto and construction industries will have a good momentum of development, and the demand for methyl ethyl ketone will also increase substantially. Therefore, domestic qualified enterprises should seize the opportunity to build or expand the methyl ethyl ketone production plant, and its development prospects are bright. The following proposals are made for the preparation of methyl ethyl ketone-related units:
The average capability of methyl ethyl ketone plants in the world exceeds 50,000 t/a. At present, except for a few developing countries that build 10,000 t/a devices, the vast majority of single-line production capacity is above 50,000 t/a. In order to participate in global competition in the future, new domestic Or the capacity of the expanded methyl ethyl ketone plant is at least 30,000 t/a.
The production of methyl ethyl ketone has certain requirements for raw materials, and there are many synthetic routes for the process. It is recommended to choose the production address in areas where the industrial base is good, the raw material supply is sufficient, and the production equipment is close to the downstream product installations. In addition, various advanced technologies at home and abroad must be comprehensively evaluated and carefully adjusted to local conditions. Choose the production route that meets the conditions of the country and the factory conditions.
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