Chemical Mixing Simulator FAQ

In this article we’ll try and answer some popular questions about Chemical mixing simulators.

Is it possible to simulate chemical reactions now?

Yes. Two months ago, no. Let me clarify. The VisiMix-Chem software—which is an innovation in the market and for reaction science simulations—provides us the capability to calculate chemical reactions in sterile vessels in a satisfactory way. The reason for this is that we finally understand why we have deviation on different scales even if we use the same concentrations or materials in the tank. We know how the structure of mixing, mixing phenomena, and flow dynamics we generate in our tank in the liquid media will develop conditions that we will calculate to know how the reaction progresses in the tank. This is because we discovered what the function and influence of the level of turbulence are in the capability to progress with a reaction, and the balance between the mass transfer by inertia and velocity versus the mass transfer by molecular diffusivity. Both are happening in the tank simultaneously, but how we calculate and determine what the location is between them is exactly our innovation.

We know that when we are talking about chemical reaction, we are not able to generate homogeneity in mixing at the level of molecular size. It is not possible in terms of physics. The minimum capability to generate homogeneity is by order of magnitude of Kolmogorov size, and the differences between [Inaudible] and micrometer. So, this deviation in this difference, this gap in the capability to generate homogeneity, generates two main activities. Inside the Eddy side, we’re talking about molecule diffusivity, and outside, we’re talking about inertia. So, this is one of the limitations. The second limitation is that when we feed two materials into the tank, it takes some time to generate macro mixing homogeneity. What this means is that the best and ideal macro mixing continue to be the upper limitation of mixing. We cannot mix more than the macro mixing time and macro mixing scale. So, we are taking these two phenomena into consideration when we calculate the hydrodynamic, we feed, the reactants. We see how this is a balance between the materials according to the flow we’re generating with different geometries, different conditions that ensure that the material and reactant concentrations will enter into place and react according to the conditions in and around the materials that were in the tank. Of course, we are not calculating well mixed equipment. The assumption is that we are writing only the connection between the concentration, the kind of reactants or productivity, or the concentration of the products and byproducts, and not taking into consideration the flow dynamics. This assumption is very typical, very classic; it is in a lot of correlations or software packages that assist in determining some kind of starting point. But of course, when we delve deeper, we need to take into consideration the flow. We are unique, innovative, and provide companies the capability to calculate. So, this is the first answer, covering one of many questions we have here. I will read every question here and try to answer.

What is the online simulation for chemical reaction?

It is nonexistent. Users are looking for some kind of simulation that will be in the cloud. We provide the software to companies that have the license, and they can select the way they want to use the software—by internal website or by local user or network. The situation really depends on what the company is looking for, and we are very flexible regarding this.

What is chemical mixing?

Chemical mixing is the capability to generate homogeneity into the time. But before that, note that high homogeneity is equal to a good process. So, good mixing is equal to a good process. In the industry, good mixing is the capability to generate conditions, interactions between the materials, and good quality, purity and operation.

Are you allowed to mix chemicals?

I don’t know. What is the question? We allow you to do what you want to do. Take care for your safety, the purpose of the process, and for the business. We calculate all that is required to know if the mixing is good or not good. We know what the minimum and maximum concentration deviation is from the well mixed equipment or good mixed equipment. All of these details we provide in the software.

What chemicals should you never mix?

The first criterion is that the chemicals are safe. And the second criterion is that the chemicals are good for you. From here, we can mix any materials, even if they are in different phases.

Can you mix two chemicals together?

Yes, two and more—all the chemicals you need. Companies perform formulations, mixing about 15 to 20 different materials. This occurs even with your bread; the commercial bread you might eat has about 40 different ingredients. The process is not like we do at home where we just use some wheat and water. No, 40 different materials are used in order to generate the bread that you consume now. And this applies not only to bread but to any single material that you have bought; there are a lot of ingredients inside.

VisiMix Video

The Influence of Mixing in the Process
New methodology using VisiMix software for the purpose of checking the influence of mixing in the processes.

VisiMix Demo Operation
Learning how to input data into the VisiMix software and get results the will help us understand the influence of mixing in our processes.

Lab Experiments
Learning how to set up the relevant experiments at the lab scale, to develop the processes from an engineering point of view.