Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Lothar Riekert"'
Autor:
Lothar Riekert
Publikováno v:
Zeitschrift für Physikalische Chemie. 189:169-178
Publikováno v:
Zeolites. 10:798-801
The kinetics of sorption of benzene and C 6 ÷ C 9 n -paraffins into fairly large crystals of HZSM-5 and silicalite at 298 K were studied by gravimetry. The diffusivities characterizing the rates of sorption are listed. Diffusion of n -nonane is at l
Publikováno v:
Journal of the Chemical Society : Faraday transactions
Conventional NMR spectroscopy is applied to study tracer exchange in adsorbate–adsorbent systems. In the proposed experimental procedure, heat effects are completely excluded and possible transport resistances due to gas-phase diffusion and intercr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39f150725240b8c4cb091d552ac8fe3b
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:237499
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:237499
It is shown that an elevated yield of phthalic anhydride (PAA) can be obtained in a fixed bed consisting of a sequence of different catalysts. A suitable sequence of catalysts can be determined by a computerized search, following the strategy of biol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::126c7d351c13a7ad9f84c83d2966ac58
https://doi.org/10.1016/s0167-2991(08)60157-3
https://doi.org/10.1016/s0167-2991(08)60157-3
Autor:
Lothar Riekert, Klaus Beschmann
Publikováno v:
Chemie Ingenieur Technik. 65:1231-1232
Autor:
Lothar Riekert
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 84:964-973
Alle chemischen Verfahren lassen sich als Prozesse der Energieumwandlung auffassen. Die Elementarzusammensetzung der Materie bleibt bei chemischen Prozessen insgesamt unverandert, jedoch ist die maximale mechanische Arbeit, die sich bestenfalls aus d
Autor:
Lothar Riekert, Hans‐Joachim Doelle
Publikováno v:
Angewandte Chemie. 91:309-316
Die Sorption und Desorption in Zeolithen (Molekularsieben) werden als zusammengesetzte Vorgange dargestellt, bei denen die Diffusion in den Zeolithkristallen, der Transport in den Kornzwischenraumen der Agglomerate (Pellets) und die Warmeubertragung
Autor:
Lothar Riekert
Publikováno v:
Chemie Ingenieur Technik. 55:925-930
Scale-up of chemical reactors. It was shown by Damkohler as long ago as 1936 that full similarity can not be achieved in the scale-up of chemical reactors. The scale-up process must therefore either be undertaken by trial and error or it must be base
Publikováno v:
Zeolites. 6:213-216
Intracrystalline self-diffusion coefficients of methane and water in pentasil zeolites have been determined by the n.m.r. pulsed field gradient technique; zeolite samples synthesized in different laboratories were investigated. The self-diffusivity a
Autor:
Lothar Riekert
Publikováno v:
Chemical Engineering Science. 29:1613-1620
Chemical processes may be regarded as a transfer of chemical energy from the starting material into the products. The work equivalent of any material is the maximum amount of shaft work or electrical energy which can possibly be obtained from it when