+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors

, : System for reducing energy consumption improving reactors for heterogeneous catalytic synthesis and relative reactors. United States Patent (US 4,904,453): 11 pp.

A method is provided for substantially reducing the energy consumption of conventional reactors for heterogeneous synthesis such as for ammonia and methanol synthesis. The method comprises inserting, in at least one catalyst bed, two concentric cylindrical substantially perforated walls to laterally delimit the bed, a bottom closure between these walls, and optionally a diaphragm on top of the bed. Optionally also, a catalyst granulometry gradient may be employed in the upper part of the bed.

Accession: 001962755

Related references

Moschetta, E.G.; Negretti, S.; Chepiga, K.M.; Brunelli, N.A.; Labreche, Y.; Feng, Y.; Rezaei, F.; Lively, R.P.; Koros, W.J.; Davies, H.M.L.; Jones, C.W., 2015: Composite polymer/oxide hollow fiber contactors: versatile and scalable flow reactors for heterogeneous catalytic reactions in organic synthesis. Flexible composite polymer/oxide hollow fibers are used as flow reactors for heterogeneously catalyzed reactions in organic synthesis. The fiber synthesis allows for a variety of supported catalysts to be embedded in the walls of the fibers, thus...

Irfan, M.; Glasnov, T.N.; Kappe, C.Oliver., 2011: Heterogeneous catalytic hydrogenation reactions in continuous-flow reactors. Microreactor technology and continuous flow processing in general are key features in making organic synthesis both more economical and environmentally friendly. Heterogeneous catalytic hydrogenation reactions under continuous flow conditions offe...

Marshall, E., 1986: DOE's Way-Out Reactors: The Department of Energy wants to spend $72 million next year to design and build reactors for military space applications; nothing like them has been built before. Science 231(4744): 1357-1359

Netto, G.Cesconetto.; Sauer, T.; José, H.Jorge.; Moreira,átima.Peralta.Muniz.; Humeres, E., 2004: Evaluation of relative photonic efficiency in heterogeneous photocatalytic reactors. The evaluation of photonic efficiency in heterogeneous photocatalysis remains elusive because the number of absorbed photons is difficult to assess experimentally. The photonic efficiency of heterogeneous photocatalytic reactors depends on the rea...

Zardi, U., 1989: System for improve the mixing of reacted gases and quench gases in heterogeneous synthesis reactors. A system is provided to improve the mixing of reacted gases and quench gases and to increase the yield and reduce the energy consumption in reactors for the heterogeneous synthesis of ammonia and methanol. The reactor consists of an external shell...

Kunz, U.; Turek, T., 2009: Flow through reactors for organic chemistry: directly electrically heated tubular mini reactors as an enabling technology for organic synthesis. Until recently traditional heating in organic chemistry has been done with oil heating baths or using electric heat exchangers. With the advent of microwave equipment, heating by microwaves was rapidly introduced as standard method in organic chem...

Dong, X.; Jin, W.; Xu, N.; Li, K., 2011: Dense ceramic catalytic membranes and membrane reactors for energy and environmental applications. Catalytic membrane reactors which carry out separation and reaction in a single unit are expected to be a promising approach to achieve green and sustainable chemistry with less energy consumption and lower pollution. This article presents a revie...

Rivard C.J.; Himmel M.E.; Grohmann K., 1986: Utilization of hydrolysate from acidic pretreatment of biomass in a mesophilic anaerobic fermentation system for the production of methane comparison of the standard continuously stirred tank reactors with up flow packed bed reactors. Scott, C D (Ed ) Biotechnology And Bioengineering Symposium, No 15 Seventh Symposium on Biotechnology For Fuels And Chemicals; Gatlinburg, Tenn , Usa, May 14-17, 1985 Xxi+741p John Wiley And Sons, Inc : New York, N Y , Usa Illus 375-386

Wiles, C.; Watts, P., 2007: Improving chemical synthesis using flow reactors. Owing to the competitive nature of the pharmaceutical industry, researchers involved in lead compound generation are under continued pressure to identify and develop promising programmes of research in order to secure intellectual property. The po...

Berchtold, S., R.; Vanderloop, S., L.; Suidan, M., T.; Maloney, S., W., 1995: Treatment of 2,4-dinitrotoluene using a two-stage system: Fluidized-bed anaerobic granular activated carbon reactors and aerobic activated sludge reactors. Continuous-flow anaerobic fluidized-bed granular activated carbon bioreactors were used to treat 2,4-dinitrotoluene (2,4-DNT), a compound used in primary propellant production. A synthetic waste-water solution containing 2,4-DNT, ethanol, mineral...