Artificial intelligence enabled planning of chemical synthesis scheme

Synthetic organic chemistry revolves around the development of new synthetic methods, routes and schemes for the synthesis of target compounds. The field is also interested in the development of new schemes that could synthesize a compound in higher yields and better efficiency.   A new study demonstrates the use of artificial neural networks with deep … More Artificial intelligence enabled planning of chemical synthesis scheme

Drilling multiple layers of shale formation for oil

Hydraulic fracturing uses a combination of high pressure water and horizontal drilling to access oil trapped in previously untapped shale formation. With the technique, oil previously inaccessible has been opened up for exploration and exploitation. But, the technique typically drilled a single shale layer using a smaller number of wells. Improvements in the technique has … More Drilling multiple layers of shale formation for oil

Do renewable fuels solve a climate change problem or air quality problem?

Whether renewable fuels help combat climate change or solve local air quality problems depends on how cleanly the fuel could be burned. Specifically, if the renewable fuel burns cleanly and with less emissions compared to conventional gasoline, it could potentially help alleviate local air pollution problem. However, if the renewable fuel is comparable to conventional … More Do renewable fuels solve a climate change problem or air quality problem?

High water consumption in fracking

Fracking utilizes high pressure fluid to hydraulically fracture rocks that entrap oil and gas in underground shale formation. While the process enhances the recovery of oil and gas previously not accessible to conventional drilling techniques, it requires the use of large amount of water and is thus not environmentally sustainable in arid regions with poor … More High water consumption in fracking

Adsorptive membrane treatment technologies may not have a low energy footprint

Adsorption is a low energy water and wastewater treatment technology. Thus, would the combination of adsorption and membrane treatment technologies lead to a low energy treatment system? The answer depends on the pore size of the membrane used in adsorptive membrane technologies, where the membrane surface serves as adsorbent for the sorption of heavy metals … More Adsorptive membrane treatment technologies may not have a low energy footprint

Energy requirement of forward osmosis membrane processes may not be lower than that of reverse osmosis

Forward osmosis is a relatively new membrane process for wastewater treatment. Specifically, it entails the addition of a volatile solute (such as ammonium carbonate) to the permeate side of the membrane for inducing the diffusion of water molecules across the membrane down a water concentration gradient. The volatile solute would be subsequently removed from the … More Energy requirement of forward osmosis membrane processes may not be lower than that of reverse osmosis

Total synthesis for expanding the repertoire of bond forming reactions in synthetic organic chemistry

In synthetic organic chemistry, total synthesis of a compound refers to the use of multiple reactions for deriving a target compound using, as inputs, simple molecules commonly available. The task is therefore immense, and serves as a critical test for the ingenuity of the researchers in brainstorming new bond forming reactions able to couple two … More Total synthesis for expanding the repertoire of bond forming reactions in synthetic organic chemistry

Approach to chemical engineering education at the undergraduate level

The chemical engineering science approach that focuses on molecular understanding of various processes important to chemical engineering remains the most popular approach by which chemical engineering departments around the world teach the subject. However, chemical engineering practice and design typically relies on a style of analysis different from the molecular-based chemical engineering science approach. How … More Approach to chemical engineering education at the undergraduate level

Mass transfer resistance in chemical engineering

Mass transfer resistance is a metaphor for enabling students to better understand the molecular behaviour of liquids near gas bubbles or solids.   Specifically, due to intermolecular force of attraction, a thin layer of liquid would be permanently attracted to the surface of a gas bubble or solid particle. This layer of liquid, for example, … More Mass transfer resistance in chemical engineering

Different fractions from a polymerisation reactor

Polymers such as those used in clothing and the foam layer of running shoes are manufactured through a polymerisation reaction, most commonly free radical polymerisation. Hence, depending on how the reaction is tuned and controlled, different grades of polymers would predominate in the products stream coming out of the reactor.   However, irrespective of the … More Different fractions from a polymerisation reactor