نتایج جستجو برای: octane number enhancement
تعداد نتایج: 1285977 فیلتر نتایج به سال:
Chemical energy release from high octane number fuels via low temperature heat (LTHR) can help develop high-efficiency gasoline engines by promoting ultra-lean combustion in spark ignition and improving control compression engines. A recently developed experimental technique that permits isolated LTHR investigations motored was used to characterize the behavior of iso-octane/air mixtures rangin...
methyl tertiary butyl ether (mtbe) is known as a promising substitute for tetra ethyl lead (tel) in order to increase the octane number of gasoline. mtbe process, as many other processes, has two distinguished section, namely reaction section and separation section. in this paper we focus only on synthesis and optimization of separation section of this process. in order to achieve this objectiv...
The interaction and reactivity of n-octane adsorbed on the (1×1) and (5×20) surfaces of Pt(100) have been examined by reflection-absorption infrared (RAIRS), temperature-programmed reaction (TPRS), andAuger electron (AES) spectroscopies andby low-energy electrondiffraction (LEED). A strongC-H‚‚‚M interaction between the adsorbate and the metal was present on both surfaces at 100 K, as evidenced...
BACKGROUND In recent years, there have been intensive efforts to develop synthetic microbial platforms for the production, biosensing and bio-remediation of fossil fuel constituents such as alkanes. Building predictable engineered systems for these applications will require the ability to tightly control and modulate the rate of import of alkanes into the host cell. The native components respon...
nowadays, increased attention has been focused on internal combustion engine fuels. regarding environmental effects of internal combustion engines particularly as sources of pollution and depletion of fossil fuels, compressed natural gas has been introduced as an alternative to gasoline and diesel fuels in many applications. a high research octane number which allows combustion at higher compre...
We have optimized a synthetic approach to (±)-Ferrugine in 8 steps starting from 5-aminocyclohept-1-ene and using the Brønsted acid-catalyzed pseudotransannular ring-opening of epoxide derived this cycloheptene as key step for construction 8-azabicyclo[3.2.1]octane central core. While attempting enantioselective synthesis natural product enantiopure 2-hydroxy-8-azabicyclo[3.2.1]octane we found ...
natural clinoptilolite zeolite (clp) in its original or metal ion- exchanged form (ni2+) is a weak adsorbent for relatively large thiophene derivative molecules like benzothiophene (bt) and di-benzothiophene (dbt), due to its rather restricted micro-channel structure. a novelty of this work is that upon desilication treatments, it is possible to enhance the adsorption behavior of ni2+-exchanged...
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