Sentences with phrase «convert ethylene»

Acetylene, a hydrocarbon that's often found in the gas feedstocks that are used at polyethylene plants, damages the catalysts that producers use to convert ethylene to polyethylene.

Not exact matches

A study, published in the journal Nano Energy, showed that the new catalyst can efficiently and selectively convert carbon dioxide to ethylene, one of the world's most important commodity chemicals.

«We have shown that alumina, which is always present in zeolites, can easily transform methanol into ethylene and other hydrocarbons, which can then be converted into carbenium ions in the pores of the zeolite catalyst,» explains Christophe Copéret, Professor of Surface and Interface Chemistry at ETH Zurich and one of the authors of the study.

This is nitrogen - rich graphene festooned with finely tuned copper nanoparticles selectively converts carbon dioxide to ethylene, a key commodity chemical.

It also allowed the zeolites to convert 60 % of the longer hydrocarbon chains into five key chemical starting materials: benzene, toluene, xylene, propylene, and ethylene.

The conventional industrial solution is to convert this undesirable acetylene into ethylene as well, but this step requires the use of palladium, an expensive and rare metal, as a catalyst and consumes a significant amount of energy.

The research suggests that filtering out acetylene using MOFs would produce ethylene at the high purity that industry demands while sidestepping the current need to convert acetylene to ethylene via a costly catalytic process.

The process converts roughly 50 percent of the natural gas to acetylene — the other half is burned for the heat that drives the process, which still releases CO2 into the atmosphere — and nearly all of that acetylene to ethylene, and then ethylene to fuel.

One way producers remove acetylene is to add hydrogen gas in the presence of a palladium catalyst to convert the poisonous acetylene into ethylene — the primary component needed to make polyethylene resin.

That's why at Swansea we have converted waste carbon dioxide into a molecule called ethylene.

This copper catalyst was subsequently introduced into an artificial photosynthesis system to convert carbon dioxide and water into ethylene using only solar energy.

It turns out the caterpillars can break down the bag's polyethylene into ethylene glycol, which can be readily converted into useful substances such as antifreeze.

According to a recent news story, a state task force in South Charleston is working to attract companies that convert ethane — a byproduct of natural gas production — into ethylene, a chemical compound used in a variety of manufacturing and consumer products.

Cracking plants — also known as «crackers» — convert ethane to ethylene, which is used to make polyethylene plastic.