Who designed the most classic sulfur-based acid production plant?

It must be the Nanhua Design Institute; there’s a group for sulfuric acid technology exchanges – you can go and ask there. Group ID: 37753249. This post was last edited by yzzy614 on 2007-12-23 at 12:09

I support the view on the second floor: although Nanhua’s mechanisms are not very flexible and its competitiveness in the market is lower than that of Hua San Yuan and Nanchang Yuan, Nanhua’s design capabilities are likely to be first-class in the industry. If sorting is necessary: Nanhua – Third Chemical Research Institute – Nanchang Institute. The above are just personal opinions; everyone is welcome to share their views!

In fact, the reputation of Nanhua and the Third Chemical Research Institute was built up during the planned economy era! Name exceeds reality! Take a look at the advanced technologies used by today’s emerging design firms! Nanhua and the Third Chemical Research Institute can only aspire to match them!

I’ve heard that the 300,000-ton sulfuric acid production plant designed by Nanhua Institute is the most exemplary; although some plants have upgraded certain equipment to increase production, their performance in terms of energy efficiency and various operational parameters is not very good.

Nanhua Institute has extensive experience in producing acid from pyrite and enjoys a high reputation in the industry. The process design, equipment, and materials used for sulfur-based acid production by Mengmoke in the United States are among the best in the sector; several sulfur-based acid production plants in China have been designed by them, and their performance meets excellent standards after operation.

To be honest, the design of Nanhua Institute is really poor in terms of layout; our factory has suffered a lot because of it (the height difference at the belt feed inlet is 5-6 meters, and as a result, many workers were injured). But the main processing flow is okay.

When it comes to classic projects, the Nanhua Design Institute stands out. In 1997, it designed a 300 kt/a sulfuric acid production plant in Suzhou, which was China’s first large-scale sulfuric acid production facility. This plant took advantage of advanced foreign technologies as well as mature technologies for producing sulfuric acid from pyrite. It required only one major overhaul over 10 years, with just one day of shutdown per year; its equipment was in excellent condition. That plant is now shut down, and all subsequent large-scale sulfuric acid production facilities have been developed on the basis of this design.

Nanhua Research Institute has considerable experience in the sulfuric acid sector in China, but it seems that they haven’t designed many large-scale facilities over the years; Chemical Industry Third Research Institute seems to have done more of that

This gentleman pointed out in which areas new companies pose a challenge to Nanhua and the Third Chemical Research Institute Just talking doesn’t provide any evidence – how can that convince anyone? As a veteran sulfuric acid design firm, Nanhua indeed possesses strong capabilities; a group of experienced experts have made indelible contributions to China’s sulfuric acid industry. Huasa No. 3 Institute is slightly behind in terms of technical accumulation, but its progress in large-scale sulfuric acid production is also evident to all! I’ve heard that the Nanchang plant is used for producing acid from flue gas, but I don’t know much about it. Monsanto’s sulfur-based acid production method is indeed classic, but how many similar systems have been designed in China? Apart from the high investment costs, foreign engineering companies are already strong in terms of technical capabilities, so they should not be included in the discussion. But besides these guys on the 6th floor, who else knows about any so-called advanced new companies or advanced technologies? Are everyone ignorant? ! Strength speaks for itself! This post was last edited by gongzhihai on 2008-1-5 23:48.]

The main sulfuric acid production plants designed by Nanhua Research Institute over the past decade: Owner’s name, Capacity/kt.a-1, Year of commissioning. Guizhou Kailin Group Phosphorus Coal Chemical Industry Base (Kaiyang): Phase 1 – 800; Phase 2 – 800. Guiyang Sinochem Kailin Fertilizer Co., Ltd. (Xifeng) – 800, 2006. Zhenjiang Supor Group – 300, 2006. Yunnan Phosphate Fertilizer Industry Base (Furui) – 800, 2005. Guiyang Sinochem Kailin Fertilizer Co., Ltd. (Xifeng) – 600, 2005. Shaoxing Huawei Chemical Company – 200. Weiten Company: Phase 2 – 400, 2005. Hubei Spar Group – 300. Zhenjiang Fostar Chemical Co., Ltd.: Phase 2 – 300; Phase 1 – 280, 2005/2004. Changshu Xinfu Chemical Co., Ltd. – 250, 2005. Shandong Zibo Bofeng Compound Fertilizer Co., Ltd. – 250, 2005. Hebei Langfang Jianlong Acid Production Co., Ltd. – 300, 2005. Shandong Hongri Akang Chemical Co., Ltd. – 200. Yunnan Tin Industry Group Co., Ltd. – 300. Nanjing Chemical Industry Co., Ltd. – 300, 2005. Jiangsu Suhua Group (Zhangjiagang) – 400, 2005. Hubei Dongsheng Chemical – 200, 2005. Tianjin Boda Chemical Co., Ltd. – 200, 2005. Wuxi Dongwo Chemical Energy Co., Ltd. – 200, 2005. Shandong Fertilizer Industry Co., Ltd. – 300. Zhejiang Jiacheng Chemical Co., Ltd. – 100, 2004. Yunnan Furui Chemical Co., Ltd. – 300, 2004. Hangzhou Pigment Chemical Factory – 200, 2003. Yunnan Jiangchuan Tianhu Company – 300, 2003. Hubei Chuxing Chemical Co., Ltd. – 300, 2003. Weiten Company: Phase 1 – 400, 2003. Nanjing Chemical Industry Co., Ltd. Phosphate Fertilizer Plant – 200, 2003. Chongqing Fuling Chemical General Corporation – 300*3, 2002. Yunnan Phosphate Fertilizer Plant (Sanhuan) – 330, 2002. Yihua Chemical Co., Ltd. Yidu Branch – 300, 2002. Yangzhou Xinye Chemical Co., Ltd. – 230, 2002. Nanjing Chemical Industry Co., Ltd. Phosphate Fertilizer Plant – 250, 2001. Yunnan Yunfeng Chemical Industry Company – 200, 2001. Shandong Luxi Chemical Group – 300, 2000. Shandong Linyi Hongri Chemical Co., Ltd. – 400, 2000. Suzhou Fine Chemical Group Company – 200, 2000. Suzhou Fine Chemical Group Company – 300, 1999. Yunnan Kunyang Phosphate Fertilizer Plant – 120, 1999. Hubei Jianli Phosphate Fertilizer Plant – 80, 1998. Gejiu Fertilizer Plant – 80, 1998. Yunnan Phosphate Fertilizer Plant – 120, 1998. Ningbo Sulfuric Acid Plant – 80, 1998. Yunnan Phosphate Fertilizer Industry Base – 140, 1997. Kaiyang Phosphate Fertilizer Industry Base – 80, 1997. Yunnan Phosphate Fertilizer Plant – 80, 1996. Henan Lvbao Company – 100, 1996

Hehe, I’ve also listed some typical achievements for Huasan Third Hospital. The earliest one is the sulfuric acid production facility in Tongling, which seems to have won a **-level science and technology progress award. There’s also sulfuric acid production from pyrite in Tongling; Guizhou Hongfu has two facilities capable of producing 400,000 tons of sulfuric acid each (the largest such facilities in China), as well as sulfuric acid production from sulfur. Yunnan Sanhuan Sinochem has two facilities capable of producing 800,000 tons of sulfuric acid each, while Yunnan Furui Chemical has a facility capable of producing 800,000 tons of sulfuric acid. Sanhuan Chemical has two facilities capable of producing 600,000 tons of sulfuric acid each. In South Korea, COSMO has a facility capable of producing 200,000 tons of sulfuric acid per year – it was the first sulfuric acid production plant to be exported to South Korea. Hehe, that’s about all I know :)

Nanhua Institute and Hua San Institute are better. . And what material is used for the SO3 conversion tower of sulfuric acid? It has three layers; the inlet temperature is 450°C, and the outlet temperature of the first layer is 600°C. Thank you. This post was last edited by hopelu on 2008-1-7 08:36.]

The lack of seriousness and responsibility on the part of a few individuals does not represent the whole

Almost all those in design firms who work on mechanical layout design set the height difference between belts to be very high! Sometimes it’s to overly pursue the contraction angle of the hopper; more often, there’s no reason for it at all – it’s just a bad habit that results in dust being everywhere. Probably all taught by the same master; after all, all crows are black! :lol

I think the title is wrong; there is no best, only better! So, it’s more accurate to say that each has its own strengths! When it comes to the number of designs and those that suit national conditions, Nanhua Institute is of course the first choice ； However, the design process at Nanhua Institute also involved eliminating the false and retaining the true, as well as gradual improvement; it moved from the Soviet design models to the current locally developed designs, and during this process the advantages of Western manufacturing techniques such as those used by Monsanto in the United States were indeed incorporated ； Due to factors such as the material, the craftsmanship is merely average. From the perspective of waste heat utilization and energy consumption, there is still a gap compared to foreign companies, but the starting points are different; American companies have revenues in the hundreds of billions of dollars, and they invest billions of yuan each year in research and development, so it’s normal to see such a gap. However, what is important is digestion and absorption; the South Chemical Research Institute has now taken a promising step forward, and the industrial design for low-temperature heat recovery is just around the corner. Therefore, there is indeed a gap in technology between domestic design institutes and those abroad, just as there is a gap between the J10 and the F22; however, with the emergence of the J14, this gap can be narrowed. Similarly, although foreign technologies are advanced, the upfront investment is too high, which does not suit local conditions; as a result, it is difficult to promote them. Fortunately, American companies are also offering big price cuts right now; the investment cost for HRS in Yungui is much lower than that in Suzhou, which is also an improvement. It's fine to boast, but everyone should also be practical – excellence comes from hard work, not from idleness!

The China Nonferrous Metal Design and Research Institute is renowned for producing acid from smelting flue gas; however, it has also started to produce acid from sulfur, mainly for overseas EPC projects. The two projects currently under implementation are in Egypt and the Democratic Republic of the Congo