Technical discussion on dry high-temperature pyrolysis units for alkylated waste acid
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Alkylation waste acid has long been a problem that plagues businesses, and due to current environmental regulations, these companies are forced to find ways to deal with this waste acid. A few days ago, several people from Shandong dumped about 600 tons of waste acid in Henan, and more than a dozen of them were sentenced. It’s a pity that, as far as is known today, there is no low-cost method for treating alkylated waste acid. Foreign technologies are not either that stable; for example, the acid waste treatment systems in Denmark require large investments, and they have to be shut down for a week each month so that foreign experts can carry out maintenance work, which increases costs. Both dry and wet methods have their own advantages and disadvantages. To date, three sets of units for treating alkylated waste acid have been used, and a new unit for producing sulfuric acid through oxygen-enriched high-temperature pyrolysis was recently put into operation. The cost of treating waste acid has dropped from 650 yuan per ton initially to over 500 yuan at present (including all related costs). The technology for treating waste acid through pyrolysis in China is also gradually improving. Friends who have questions regarding the production of sulfuric acid through high-temperature pyrolysis in a dry process, as well as ways to solve these issues, can share their thoughts with each other. Learn together* and make progress!
Please, expert, help solve the problem of carbon buildup and blockages
Currently, oxygen-enriched combustion and the prior extraction of oils from waste acid are effective methods to reduce corrosion. At the same time, replacing some pipelines in the alkylation process with PTFE-lined pipelines is also an effective way to reduce the coking rate. It can only be said that there are ways to reduce it, but to resolve the issue completely, foreign equipment is needed. Haha......
The cost is not high, and the use of oxygen enrichment reduces costs.
Are you using oxygen-enriched air? I’ll go take a look
Well yes, oxygen enrichment is used. I’m calculating the actual costs these days; I have time to play around
What is the oxygen concentration? Which company’s technology to use?
30% oxygen enrichment is used; it’s hard to say which specific technology it is, so as to avoid any misunderstanding that it might be advertising. Hehe........
Sure, if you come, I’ll definitely treat you to big crabs! :handshake