Alkylated sulfuric acid consumption
Thread Content
This post was last edited by Guan Gongyu on 2015-9-25 at 10:20. In sulfate-based alkylation, what amount of sulfuric acid is considered normal? What is the lowest acid consumption level that people have heard of so far? What factors affect acid consumption? Does the height of the baffle inside the acid precipitation tank have a significant impact on acid consumption? What height is appropriate for the baffle? If it’s too high, does it need to be cut shorter? If one does not want to cut the baffle, are there any ways to ensure that it does not affect the efficiency of acid-oil separation?
In sulfate alkylation, what amount of sulfuric acid is considered normal? What is the lowest acid consumption level that people have heard of so far? The lowest acid consumption I’ve heard of is 8.8%, while most units have an acid consumption of 9.5–10%. What factors influence acid consumption? It is greatly affected by the feed composition, as well as the operating load; everything else remains basically constant. Does the height of the baffles in the acid sedimentation tank have a significant impact on acid consumption? What height is appropriate for the baffle? If it’s too high, does it need to be cut shorter? If one does not want to cut the baffle, are there any ways to ensure that it does not affect the efficiency of acid-oil separation? The height of the acid precipitation tank affects its efficiency in separating acidic hydrocarbons, but I don’t have any information on this topic at the moment. Generally, the acid precipitation tank and the reactor come as a set, and no attempts are made to make changes to them
The acid consumption is normal at 50-70 Kg/t, with a minimum of 45 Kg/t.
Can it be controlled this low? Could you reveal which design institute provided the process package? Please give me some advice. :handshake
I’ve heard that the minimum value is 45 kg/t; the alkylation process is constantly being optimized, and different design institutes come up with different designs
I’ve never heard of such a low value before; the minimum theoretical acid consumption for the DuPont process is 50 kilograms per ton.
So do you know how much acid is typically stored in a reactor?
Our company’s alkylation unit in Shandong, designed using the Ruums process, is rated at 50 kilograms per ton. In fact, acid consumption is also related to the raw materials and the operating procedures.
I’ve heard many people say that Rums’ production process has low acid consumption; so are your raw materials post-ether tetrahydrocarbons, or does it come in the form of liquefied gas? Would it be possible to tell me what the composition of your raw materials is? In terms of operation, what has the greatest impact on acid consumption – the reaction stage or the raw material preprocessing stage?
To be honest, in the traditional sulfuric acid process, most of the acid consumption is above 100; achieving a level below 100 is already considered a good result. The Lums process doesn’t have such low acid consumption either, with values generally ranging from 70 to 90, which is relatively better – this is due to the advantages of its own processing method, and it’s indeed a decent performance. It is said that a company under CNOOC is able to reduce acid consumption to 50 kg, as it uses foreign processes and equipment, along with its own C4 material, and its operational skills are also quite high. Generally, it’s simply impossible for refineries to use this as a reference. Therefore, keeping it within 100 kg using the traditional alkylation method is a realistic goal.
7.80KG/ton. Avoid physical or chemical acidification. Thank you; for more details, contact QQ378995564