In order to select the right type and size of the filter, it is often recommended to perform filtration tests for new applications. The main goal of these filtration tests is to determine the optimal filter media and filtration process conditions. Two filtration tests results Sulphurnet recently visited a plant in Chili where such a...Continue Reading
How Sulphur Flour slowly destroys your sulphur plant Sublimed sulphur is invisible for the eye and causes serious corrosion. Sulphur is a pH neutral product, but under the right conditions and when the sulphur is in contact with air and water, bacterias can cause the formation of sulphuric acid: The pH can decrease drastically. During...Continue Reading
One more year, we will be present at the Sulphur + Sulphuric Acid Conference 2019 in Houston (4-7 November). Our stand is number 28. Our Project Engineer, Mathijs Sijpkes, will make a presentation about Purification of Bio-Sulphur on 7 November 2019 at 10 am. If you have any specific problems with your sulphur melting and filtration process...Continue Reading
SULPHURNET is taking part in the COBRAS 2019 conference, which will be held in Foz do Iguaçu, Brasil on 14-17 October. We will talk about “Better Management Of Sulphur Section” on 17th October at 10:50 am. If you have any specific problems with your sulphur melting and filtration process or you need to make it more cost-effective, we are...Continue Reading
The development in the sulphuric acid industry is going towards less maintenance stops, preferably running for 28-36 months. One of the criteria plants should asses continuously is the ash level in the liquid sulphur. Screening of the expensive catalyst is one important reason for stopping the acid plant. The various types of catalysts will give...Continue Reading
Process optimization with self-cleaning candle filters. A producer of herbicides was investigating a plant optimization in which filtration played an important role. The process included a continuous reactor and the products were filters on a belt filter to recover the product, which was a solid end product. The mother liquor was recirculated back into the...Continue Reading
Ashes entering the converter interferes with the formation of SO3. In a sulphur burning plant, sulphur filters usually catch the blame. A “polishing filter” can solve this problem. However, in numerous inspections of sulphur melting plants, Sulphurnet has discovered that it is not the filtration that is causing the problem. Process design and operation procedures...Continue Reading
Main filtration cake from ideal pre-coat Now that we understand the 3 main possible outcomes of the pre-coat layer, we must understand these are the worst and best possible scenarios, these possibilities are in a line from low flowrate to high flowrate. This means that you can find any deviation in along this line, knowing...Continue Reading
How the filtration flow rate affects the filter internals and what happens to the particles in the different scenarios? Believe it or not, the flow rate, especially in the pressure leaf filter, is a very critical point. Flow rate control must be continuously improved along the rest of the filtration system. The filter cake, the pump...Continue Reading
Many sulfur burning plants are plagued by high ash content levels, and then contamination of the waste heat boiler and catalyst bed in the converter of the acid plant. The answer to this problem is the installation of a liquid sulphur polishing filter after the pressure leaf filter. The liquid sulphur polishing filter with ceramic elements will drastically...Continue Reading
