Bao cao su kẹt trong âm đạo cô gái
Hà Nội- Cô gái 25 tuổi, sau khi ân ái, bao cao su bị mắc kẹt trong âm đạo, bác sĩ khám phát hiện dị vật nằm sát cổ tử cung gây tổn thương, viêm nhiễm.
The catalytic SO2 converter is the heart of the sulfuric acid plant and the quality and characteristics of the selected catalysts are crucial đồ sộ a reliable and energy-efficient operation. Bạn đang xem: Sulfur dioxide oxidation | Sulfuric acid | H2SO4 | SO2 | Topsoe The catalyst properties are influenced by the chemical composition, the physical properties including the nature of the tư vấn material and the manufacturing process. Topsoe VK catalysts are uniquely balanced đồ sộ combine high and stable activity, robustness, low-pressure drop and a long service life. Over the years Topsoe has brought major product breakthroughs đồ sộ the market, providing the industry with new catalysts for more energy-efficient operation, lower SO2 emissions and higher production rates. Topsoe’s VK series comprises five different formulations in a variety of sizes and shapes, effectively covering all operating conditions in any sulfuric acid plant. White paper The profitability of sulfuric acid production is closely related đồ sộ the production rates achievable within SO2 emission limits. The optimal operating conditions of a plant depend strongly on the plant configuration, catalyst volumes and catalyst activities, and as SO2 emission limits are tightened, more active sulfuric acid catalysts are required đồ sộ maintain the desired production rates. White paper COST-EFFECTIVE BOOST OF PLANT PERFORMANCE WITH NEW LEAP5™ CATALYSTS FOR SO2 OXIDATION
White paper The introduction of the first dust protection catalyst, VK38 in the shape of đôi mươi milimet rings in the 1970ies, provided invaluable savings for sulphuric acid plants suffering from pressure drop build-up as a result of dust present in the feed gas. Industrial experience from more than vãn 60 installations shows prolonged production campaigns by minimum 50-75% and thereby, a reduction of time consuming and expensive shutdowns for catalyst screening as well as significant savings in blower energy over time White paper New Improved dust protection catalyst
White paper Sulfuric acid plants often encounter transient phenomena such as emission spikes during unsteady operation. Emission spikes and related phenomena can be understood and predicted by considering the sulfur nội dung of the V2O5-based catalyst used in sulfuric acid converters. White paper Dynamic simulations Sulfuric acid
Brochure Profit margins are slim in the sulfuric acid business, and plants that want đồ sộ succeed need feedstock flexibility, high conversion rates, low energy consumption and high reliability. They also have đồ sộ meet increasingly strict limits on SO2 emission Brochure The profitable way đồ sộ sulfuric acid
Xem thêm: Mã bưu điện Châu Thành tỉnh Đồng Tháp 2024 | Zip PostCode Brochure VK-7XX LEAP5™ is the latest catalyst developed on the basis of the unique LEAP5™ techology. It is optimized for operation in converted strong gasses at 370-440°C/700-825oF, which is typical for the final passes of single-absorption plants Brochure High activity at low temperature
Brochure Managing a sulfuric acid plant can be challenging on the best of days, but what happens when real trouble arises? Sudden changes in pressure drops or emissions may force a decrease in production or even a full shutdown for repairs. And even when everything is working, catalyst activity changes over time – and sánh should a plant’s operating conditions. Brochure Troubleshoot, Monitor & Plan Ahead
Customer case The Guizhou Kailin Fertilizer company had two sulfuric acid plants in Guizhou, Trung Quốc that were experiencing similar problems. A severe pressure drop build-up over the first catalyst bed was increasing energy costs and eating away at margins. Dust was forcing the plant đồ sộ shut down for unplanned screening maintenance and catalyst replacement. Customer case Guizhou Kailin sulfuric acid plants combat dust đồ sộ eliminate unplanned downtime and improve Opex
Customer case The Chinese government has been tightening SO2 emissions regulations for years. In many regions, the targets are now phối at 70 PPM. While some plants depend on conventional catalysts and scrubbers, Xiangguang Copper in Shandong Province wanted a long-term approach. the contacted Topsoe đồ sộ find a catalyst solution đồ sộ help them comply with stricter emission controls, Customer case Yanggu Xiangguang copper takes new approach đồ sộ meet emissions standards of 70 PMM SO2
Xem thêm: supercalifragilisticexpialidocious – Wiktionary tiếng Việt Leaflet Topsoe’s VK-701 LEAP5™ is optimized for operation in converted strong gasses at 410-460°C/770-895°F, which is typical for the 3rd pass of 3+1 double-absorption plants. At these conditions, VK-701 shows significant activity advantages compared đồ sộ existing potassium and cesium-promoted catalysts. Leaflet Proven SO2 emissions reduction in high temperature environments
Related downloads
COST-EFFECTIVE BOOST OF PLANT PERFORMANCE WITH NEW LEAP5™ CATALYSTS FOR SO2 OXIDATION
New Improved dust protection catalyst
Dynamic simulations Sulfuric acid
The profitable way đồ sộ sulfuric acid
High activity at low temperature
Troubleshoot, Monitor & Plan Ahead
Guizhou Kailin sulfuric acid plants combat dust đồ sộ eliminate unplanned downtime and improve Opex
Yanggu Xiangguang copper takes new approach đồ sộ meet emissions standards of 70 PMM SO2
Proven SO2 emissions reduction in high temperature environments
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