Ltd. All rights reserved. Looking to the future, Bell listed several goals, including, During the ensuing discussion, Bala Subramaniam from the University of Kansas noted that because catalysts will increase the rate of conversion but not the equilibrium, process engineering in combination with catalyst development could be a powerful complement. A possibility the group mentioned was to couple biocatalysis with electrocatalysis to invent processes that convert methane to chemicals without generating carbon dioxide or water. Some major drawbacks with the use of bromine include the heat management and the large bromine recycle stream that would be necessary. This system achieved 91 percent selectivity for ethane and ethylene, with the relative amount of these two products varying with temperature. This system produced no carbon dioxide, so in a zero-carbon environment, it is possible to consider such as a system as a replacement for steam cracking of ethane, said Pez. To convert an alkane to an alkene, requires that you remove hydrogen from the alkane molecule at extremely high temperatures.
Bricker then asked if the tin in the platinum–tin catalysts was exerting a geometric or electronic effect, and Bell replied that quantum mechanical calculations show it to be an electronic effect in addition to the geometric effect of impacting nucleation sites. Calysta, for example, is converting methane into protein feed to reduce the aquaculture industry’s need for fishmeal, and Newlight Technologies has a demonstration plant that uses biocatalysis to convert methane emissions into an engineering polymer. Therefore, improving yields, kinetics, reaction rates, and process costs related to separations will be critical for any commercially viable process to come out of biocatalysis research. What catalysis science has not done is look at ways of taking the carbon in methane and turning it into materials with specific properties beyond those available today. Do you want to take a quick tour of the OpenBook's features? Major applications for the products of these reactions are in linear low-density polyethylene (LLDPE), high-density polyethylene, detergent alcohols, and synthetic lubricants. He also thought it worthwhile to investigate processes that would use methane in combination with other feedstocks to produce aromatics. The best method to convert alkene to alkynes . A monolith reactor coated with a platinum and tin catalyst (Bodke et al., 1999; Silberova et al., 2004), similar in concept to the catalytic converter on a car, produced good results at high throughput rates. With regard to the conversion of ethane or propane, respectively, to ethylene or propylene plus hydrogen, it is well known that platinum is one of the better catalysts for this reaction but that it deactivates rapidly because of coke formation.
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