FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895838966> ?p ?o ?g. }

• W2895838966 abstract "The increase in greenhouse gas (GHG) concentrations in the atmosphere, as well as the high rate of depletion of hydrocarbon-based resources have become a global concern. A major source of emissions of hydrocarbon vapours occur during loading and offloading operations in crude oil shuttle tanker transportation. The emitted gases have a typical composition of 60 % N2, 10 % CO2, 5% O2, 5 % C3H8, 10% CH4, 5% C2H6 and 5 % higher hydrocarbons. As a result, various methods aimed to add value to GHG to produce valuable fuels and chemical feedstock are being developed. This work incorporates the use of silica, polyurethane/zeolite and y-type zeolite membrane on an alumina support to selectively permeate methane and carbon dioxide from inert gases and higher hydrocarbons. The recovered gas is upgraded by dry reforming reactions employing rhodium/alumina membrane incorporated into a shell and tube reactor. Mixed gas permeation tests have been carried out with the permeate and feed gases sent to the online gas chromatograph (GC) equipped with a mass spectrometry (MS) detector and an automated 6-port gas sampling valve with a 30 mm HP- Plot Q column. The question is what mesoporous membrane can be highly selective for the separation of methane and carbon dioxide from inert gases and higher hydrocarbons, and what is the effect of temperature and feed gas pressure on the conversion of separated gases? Characterisation of the modified membranes was carried out using nitrogen physisorption measurements and showed the hysteresis isotherms corresponding to type IV and V, which is indicative of a mesoporous membrane. The surface area and the pore size were determined using the Barrett, Joyner, Halenda (BJH) desorption method, which showed the silica membrane had a larger surface area (10.69 m2 g-1) compared to zeolite (0.11 m2 g-1) and polyurethane/zeolite membrane (0.31 m2 g-1). Fourier Transform Infrared spectroscopy, Scanning Electron Microscope and Energy Dispersive X-ray Analysis confirmed the asymmetric deposition of silica, polyurethane, rhodium and zeolite crystals in the matrix of the alumina support. Single gas permeation tests showed that the synthesised y-type zeolite membrane at 293 K had a CH4/C3H8 selectivity of 3.11, which is higher than the theoretical value of 1.65. The permeating CH4 and C3H8 flux at 373 K and a pressure of 1 x 105 Pa was 0.31 and 0.11 mol s-1 m-2 respectively proving that zeolite has molecular sieving mechanism for separation of methane and propane. The silica membrane exhibited higher effectiveness for the separation of CO2 than the other membranes. For methane dry reforming using a supported rhodium membrane, an increase of the reaction temperature from 973 K to 1173 K showed an increase in conversion rate of CO2 and CH4 from less than 20% to over 90% while increasing the gas hourly space velocity (GHSV) did not have a noticeable effect. The study revealed the high potential of the zeolite and rhodium membrane for gas separation and dry reforming reactions concept in creating value-added carbon-based products from CO2 and CH4." @default.
• W2895838966 created "2018-10-26" @default.
• W2895838966 creator A5004261377 @default.
• W2895838966 date "2018-05-01" @default.
• W2895838966 modified "2023-09-23" @default.
• W2895838966 title "Innovative hydrocarbons recovery and utilization technology using reactor-separation membranes for off-gases emission during crude oil shuttle tanker transportation and natural gas processing" @default.
• W2895838966 hasPublicationYear "2018" @default.
• W2895838966 type Work @default.
• W2895838966 sameAs 2895838966 @default.
• W2895838966 citedByCount "0" @default.
• W2895838966 crossrefType "dissertation" @default.
• W2895838966 hasAuthorship W2895838966A5004261377 @default.
• W2895838966 hasConcept C127413603 @default.
• W2895838966 hasConcept C161790260 @default.
• W2895838966 hasConcept C178790620 @default.
• W2895838966 hasConcept C185592680 @default.
• W2895838966 hasConcept C18903297 @default.
• W2895838966 hasConcept C194439259 @default.
• W2895838966 hasConcept C2776345496 @default.
• W2895838966 hasConcept C2777207669 @default.
• W2895838966 hasConcept C41625074 @default.
• W2895838966 hasConcept C42360764 @default.
• W2895838966 hasConcept C47737302 @default.
• W2895838966 hasConcept C50670333 @default.
• W2895838966 hasConcept C516920438 @default.
• W2895838966 hasConcept C530467964 @default.
• W2895838966 hasConcept C548081761 @default.
• W2895838966 hasConcept C55493867 @default.
• W2895838966 hasConcept C59427239 @default.
• W2895838966 hasConcept C86803240 @default.
• W2895838966 hasConceptScore W2895838966C127413603 @default.
• W2895838966 hasConceptScore W2895838966C161790260 @default.
• W2895838966 hasConceptScore W2895838966C178790620 @default.
• W2895838966 hasConceptScore W2895838966C185592680 @default.
• W2895838966 hasConceptScore W2895838966C18903297 @default.
• W2895838966 hasConceptScore W2895838966C194439259 @default.
• W2895838966 hasConceptScore W2895838966C2776345496 @default.
• W2895838966 hasConceptScore W2895838966C2777207669 @default.
• W2895838966 hasConceptScore W2895838966C41625074 @default.
• W2895838966 hasConceptScore W2895838966C42360764 @default.
• W2895838966 hasConceptScore W2895838966C47737302 @default.
• W2895838966 hasConceptScore W2895838966C50670333 @default.
• W2895838966 hasConceptScore W2895838966C516920438 @default.
• W2895838966 hasConceptScore W2895838966C530467964 @default.
• W2895838966 hasConceptScore W2895838966C548081761 @default.
• W2895838966 hasConceptScore W2895838966C55493867 @default.
• W2895838966 hasConceptScore W2895838966C59427239 @default.
• W2895838966 hasConceptScore W2895838966C86803240 @default.
• W2895838966 hasLocation W28958389661 @default.
• W2895838966 hasOpenAccess W2895838966 @default.
• W2895838966 hasPrimaryLocation W28958389661 @default.
• W2895838966 hasRelatedWork W2019417898 @default.
• W2895838966 hasRelatedWork W2022835267 @default.
• W2895838966 hasRelatedWork W2040891586 @default.
• W2895838966 hasRelatedWork W2045060071 @default.
• W2895838966 hasRelatedWork W2065031171 @default.
• W2895838966 hasRelatedWork W2094098700 @default.
• W2895838966 hasRelatedWork W2094195236 @default.
• W2895838966 hasRelatedWork W2095054492 @default.
• W2895838966 hasRelatedWork W2359866667 @default.
• W2895838966 hasRelatedWork W2510466838 @default.
• W2895838966 hasRelatedWork W2755242241 @default.
• W2895838966 hasRelatedWork W2922370433 @default.
• W2895838966 hasRelatedWork W2972660676 @default.
• W2895838966 hasRelatedWork W3010660116 @default.
• W2895838966 hasRelatedWork W305351898 @default.
• W2895838966 hasRelatedWork W3092094785 @default.
• W2895838966 hasRelatedWork W3205212585 @default.
• W2895838966 hasRelatedWork W2087144173 @default.
• W2895838966 hasRelatedWork W2189109302 @default.
• W2895838966 hasRelatedWork W2760641862 @default.
• W2895838966 isParatext "false" @default.
• W2895838966 isRetracted "false" @default.
• W2895838966 magId "2895838966" @default.
• W2895838966 workType "dissertation" @default.