Sulfuric acid plant scale problem?

* * Source of "Catalogue of Restricted Land Use Projects and Prohibited Land Use Projects (2006 Edition)": * * Author of National Development and Reform Commission website: large, medium, small] Catalog of Restricted Land Use Projects (2006 version) (Projects in categories 1 to 10 are not allowed to use land under specified conditions) 1. Agriculture and forestry projects 1. High and medium density fiberboard projects with a single line of less than 50,000 cubic meters/year 2. Wooden particle board projects with a single line of less than 30,000 cubic meters/year 3. Rosin production projects of less than 1,000 tons/year 2. Coal projects 1. Coal mine projects with a single well shape lower than the following scales: 300,000 tons/year in Shanxi, Shaanxi, and Inner Mongolia ； Northeast and North China, other northwest regions, and Henan Province 150,000 tons/year ； 90,000 tons/year in other provinces and regions ； Mining 30,000 tons of extremely thin coal seams per year 3. Power projects 1. Except for small power grids in Tibet, Xinjiang, Hainan and other small power grids, conventional coal-fired thermal power generation projects with a single unit capacity of 300,000 kilowatts and below 2. Except for small power grids such as Tibet, Xinjiang, Hainan and other small power grids, conventional generating units with a coal consumption of more than 300 grams of standard coal/kWh, and conventional air-cooled generating units with a coal consumption of more than 305 grams of standard coal/kWh. Power generation projects 4. Petroleum, natural gas and chemical projects 1. Polyester units below 100,000 tons/year 2. Polypropylene units below 70,000 tons/year (continuous method and intermittent method) 3. Acrylonitrile units below 100,000 tons/year 4. ABS resin units below 100,000 tons/year (except bulk continuous method) 5. Ethylene units below 600,000 tons/year 6. Atmospheric and vacuum refining units below 8 million tons/year 7. Catalytic cracking units below 500,000 tons/year, continuous reforming units below 400,000 tons/year, hydrocracking units below 800,000 tons/year, delayed coking units below 800,000 tons/year 8. Polyethylene plants below 200,000 tons/year 9. Ethylene oxychlorination polyvinyl chloride plant below 200,000 tons/year, calcium carbide polyvinyl chloride plant below 120,000 tons/year 10. Styrene plant below 200,000 tons/year (except dry gas to ethylbenzene process) 11. Polystyrene plant below 100,000 tons/year 12. Purified terephthalic acid plant below 225,000 tons/year 13. Ethylene oxide/ethylene glycol plant below 200,000 tons/year 14. Caprolactam plant below 100,000 tons/year 15. Ethylene acetic acid plant below 200,000 tons/year, oxo synthesis acetic acid plant below 100,000 tons/year 16. Ammonia-alkali plant below 1 million tons/year 17. Joint alkali plant below 300,000 tons/year 18. Sulfur acid production plant below 200,000 tons/year, pyrite acid production plant below 100,000 tons/year 19. Lead chromium yellow production line below 1,000 tons/year 20. Iron oxide red pigment device below 5,000 tons/year 21. Calcium carbide arc furnace projects below 25,000 kVA (capacity less than 45,000 tons) and above 25,000 kVA that fail to meet the access requirements for environmental protection, energy consumption, etc. 22. Electrolytic manganese dioxide production line below 5,000 tons/year 23. Caustic soda installation below 150,000 tons/year 24. Potassium hydroxide plant of less than 20,000 tons/year 25. Single-line chromium compound production plant of less than 20,000 tons/year 26. Single set of anhydrous hydrogen fluoride (HF) production plant of less than 10,000 tons/year (except supporting self-use and electronic high-purity hydrogen fluoride) 27. F22 production equipment with a single set of reactors of less than 6,000 tons/year and post-processing of less than 30,000 tons/year (except for deep processing as raw material) 28. (Methyl)organosilicon monomer production equipment below 20,000 tons/year 29. Methane chloride production projects below 80,000 tons/year (excluding methyl chloride production projects for organic silicon) 30. Methane chloride production projects above 80,000 tons/year without supporting disposal facilities for all carbon tetrachloride by-products 31. Saponin (containing hydrolyzate) production equipment below 300 tons/year (excluding comprehensive utilization) 5. Steel projects 1. Sintering machine projects below 180 square meters 2. Ironmaking blast furnace projects with effective volumes below 1,000 cubic meters or 1,000 cubic meters and above, which are not synchronized with pulverized coal injection devices, dust removal devices, residual pressure power generation devices, and energy consumption, new water consumption, etc. do not meet standards 3. A steelmaking converter project with a nominal capacity of less than 120 tons or a nominal capacity of 120 tons and above, which is not synchronized with gas recovery and dust removal devices, and the energy consumption, new water consumption, etc. does not meet the standards 4. An electric furnace project with a nominal capacity of less than 70 tons or a nominal capacity of 70 tons and above, which is not synchronized with the smoke recovery device, and the energy consumption, new water consumption, etc. do not meet the standards 5. Hot-rolled strip steel projects below 800 mm (excluding special steel) 6. Hot-dip galvanized coil projects of 250,000 tons/year and below 7. Color-coated coil projects of 100,000 tons/year and below 8. Ferroalloy ore thermal electric furnace projects below 25,000 kVA, 25,000 kVA and above that do not meet the access requirements for environmental protection and energy consumption (the central and western regions have independent small hydropower and mineral resource advantages) * * Identified key poverty-stricken areas, single mine thermal electric furnace capacity ≥ 12,500 kVA) 9. Ultra-high power graphite electrode production lines with diameters below 550 mm and below 20,000 tons/year 10. Carbon blocks below 50,000 tons/year, carbon electrode production lines below 40,000 tons/year 6. Non-ferrous metal projects 1. Single series of blister copper smelting projects of below 100,000 tons/year 2. Single series of lead smelting projects of 50,000 tons/year and below 3. A single series of zinc smelting projects with a scale of less than 100,000 tons/year 4. Regenerated aluminum reverberatory furnace projects of less than 4 tons/year 5. Independent carbon projects for aluminum less than 100,000 tons/year 6. Recycled lead projects of less than 10,000 tons/year 7. Gold projects 1. Independent cyanide projects with a daily processing capacity of less than 50 tons of gold concentrate 2. Independent gold concentrator projects with a daily processing capacity of less than 100 tons of ore without supporting mining systems 3. Pyrometallurgy projects with a daily processing capacity of less than 50 tons of gold concentrate 4. Independent heap leach field projects with a daily processing capacity of less than 50,000 tons of ore (except the Qinghai-Tibet Plateau) 5. Mining and dressing projects with a daily processing capacity of less than 50 tons of rock gold ore 6. Placer gold mining projects with a daily processing capacity of less than 200,000 cubic meters of placer gold ore 8. Building materials projects 1. Ordinary float flat glass production lines with a daily melting capacity of less than 500 tons 2. Architectural ceramic tile production lines of 1 million square meters/year or less 3. Tunnel kiln sanitary ceramics production lines of less than 500,000 pieces/year 4. New dry-process cement production lines with daily output of 1,500 tons of clinker or less 5. Paper-faced gypsum board production lines of less than 20 million square meters/year 6. Modified asphalt waterproofing membrane production lines of less than 5 million square meters/year, polyethylene polypropylene composite waterproofing membrane production lines with polyethylene film thickness less than 0.5 mm 7. Gypsum (hollow) block production lines with a capacity of less than 150,000 square meters per year, small concrete hollow block production lines with a single shift annual production capacity of less than 25,000 cubic meters, fixed concrete floor tile production lines with a single shift annual production capacity of less than 150,000 square meters, and artificial light aggregate (ceramsite) production lines with a single shift annual production capacity of less than 50,000 cubic meters/year. 8. Aerated concrete production lines of less than 100,000 cubic meters/year. 9. Coal gangue and shale fired solid brick production line with a capacity of less than 30 million standard bricks/year 10. Rock (ore) wool production line with a production capacity of less than 5,000 tons/year 9. Machinery manufacturing projects 1. Rock drilling rig manufacturing project with 2 arms and below 2. Small mine car manufacturing project with 3 cubic meters and below 3. Winch manufacturing project with diameter of 2.5 meters and below 4. Mine hoist manufacturing project with diameter of 3.5 meters and below 5. Screening machine manufacturing project of 40 square meters and below 6. Cyclone manufacturing project with diameter of 700 mm and below 7. Coal shearer manufacturing project of 800 kilowatts and below 8. Mining excavator manufacturing project with bucket capacity of 3.5 cubic meters and below 9. Tractor manufacturing project of 50 horsepower and below 10. Conventional coal-fired thermal power generation equipment manufacturing project of 300,000 kilowatts and below (except comprehensive utilization units) 11. Manufacturing projects of ordinary mechanical presses of 6,300 kN and below (except CNC presses) 12. Manufacturing projects of various bonded grinding wheels with a diameter of 400 mm and below 13. Manufacturing projects of artificial diamond cutting saw blades with a diameter of 400 mm and below 14. Manufacturing projects of high, medium and low voltage switch cabinets of 220 kV and below 15. Manufacturing projects of ordinary low-grade standard fasteners below grade 8.8 16. Piston power compressor manufacturing project of 100 cubic meters and below 17. Screw compressor manufacturing project of below 20 cubic meters 18. Single-stage split pump manufacturing project of 56 inches and below 19. General-purpose medium and low pressure carbon steel valve manufacturing project of 10 MPa and below 10. Light industry projects 1. Ultra-thin (thickness less than 0.015 mm) plastic bag production line 2. Tannery project with annual processing of less than 100,000 pieces of leather (cowhide standard sheets) 3. Single spiral filament incandescent lamp production line with a production speed of less than 1500 pieces/hour 4. Electronic pricing scale project (accuracy less than 1/3000 of the maximum weighing, weighing ≤ 15 kg) 5. Electronic truck scale project (accuracy less than 1/3000 of the maximum weighing, weighing ≤ 300 tons) 6. Electronic static track scale project (accuracy less than 1/3000 of the maximum weighing, weighing ≤ 150 tons) 7. Electronic dynamic track scale project (accuracy is lower than 1/500 of the maximum weighing, weighing ≤ 150 tons) 8. Electronic belt scale project (accuracy is lower than 5/1000 of the maximum weighing) 9. Electronic crane scale project (accuracy is lower than 1/1000 of the maximum weighing, weighing ≤ 50 tons) 10. Spring dial scale project (accuracy is lower than 1/400 of the maximum weighing, weighing ≤ 8 kg) 11. Glass bottle and jar production line below 20,000 tons/year 12. Sodium tripolyphosphate production line below 30,000 tons/year 13. Toothpaste project below 2,000 tons/year 14. Northern sea salt project below 1 million tons/year ； Mine (well) salt projects below 600,000 tons/year ； Lake salt projects below 200,000 tons/year 11. New office building projects for party and government agencies 1. New office building projects for central and local party and government agencies: Must be approved by the State Council 2. New office building projects for party and government agencies below the provincial level: Must be approved by provincial people * * Approval 12. Urban trunk road projects 1. The width of land red lines (including green belts) shall not exceed the following standards: 40 meters for small cities and organized towns, 55 meters for medium-sized cities, and 70 meters for large cities. If the main roads in megacities with a population of more than 2 million really need to exceed 70 meters, there should be special instructions in the overall urban planning. 13. Urban Recreation and Assembly Plaza Project 1. The land area shall not exceed the following standards: 1 hectare for small cities and organized towns, 2 hectares for medium-sized cities, 3 hectares for large cities, and 5 hectares for megacities with a population of more than 2 million. 14. Other projects The following projects are prohibited from occupying cultivated land, and they are not allowed to occupy cultivated land in disguised form by first handling the conversion of agricultural land in batches in cities. 1. Motor vehicle trading markets, furniture cities, building materials cities and other large-scale commercial facilities projects 2. Large-scale amusement facilities, theme parks (film and television cities), and antique city projects 3. Low-density, large-scale residential projects (referring to residential projects with a floor area ratio of a residential area lower than 1.0 and a single housing building area exceeding 144 square meters) 4. Racing track project 5. Cemetery project 6. Motor vehicle training ground project Catalog of prohibited land use projects (2006 version)

Devices with less than 100,000 tons/year cannot be constructed and produced. What I want to ask is what is the maximum domestically restricted production scale? ? 50 100 or more?

That's the first time I heard that the world's largest sulfur acid production capacity is 1.5 million tons/year, and China's largest capacity is 1 million tons/year (foreign technology).

Are you talking about a single device? Can you tell me which manufacturer it is?

It was learned from relevant departments that as of December 13, Guizhou Hongfu Corporation had produced 985,000 tons of sulfuric acid, completing 98.5% of the annual plan. The annual sulfuric acid output is expected to exceed 1.05 million tons. With the completion of the company's second phase of phosphoric acid capacity expansion technical transformation project, the annual sulfuric acid production capacity will be increased by 200,000 tons, which will make Hongfu Corporation's annual sulfuric acid production capacity reach 1.2 million tons, making it the largest sulfuric acid production base in the country. In 2006, the planned sulfuric acid output of Witton Company's sulfuric acid plant and Hongfu Corporation reached 1.75 million tons. The sulfuric acid plant of Weiton Company, a wholly foreign-owned enterprise, is built in the phosphate fertilizer plant of Hongfu Company. It produces sulfuric acid and directly supplies the ammonium phosphate production of Hongfu Corporation. In 2005, Hongfu Corporation and Witton Company both exceeded their annual sulfuric acid production tasks. In the new year, the sulfuric acid production of the two companies will strive to reach a new level. The two companies have recently determined that the sulfuric acid production plan for 2006 is 1.75 million tons, including 1 million tons for Hongfu Corporation and 750,000 tons for Witton Company. The total production volume is planned to increase by 20% over the previous year.

* * Limiting sulfur acid production equipment to less than 200,000 tons/year and pyrite acid production equipment to less than 100,000 tons/year. Of course, the bigger the better, this is the economy of scale. For example, there are more than 20 sulfuric acid companies in the United States, each with 2-3 million tons. The largest domestic sulfur acid production equipment is in Suzhou Shuangshi with 1 million tons/year. The largest pyrite acid production equipment is in Guizhou Hongfu with 400,000 tons/year. The largest smelting flue gas acid production equipment is in Jinchuan, Gansu Province. Thousands of tons/year.