Essays about: "hydrocarbons"

Showing result 6 - 10 of 119 essays containing the word hydrocarbons.

  1. 6. Modelling the risk of rainfall events leading to momentary pollution levels exceeding maximum allowed concentrations - A Swedish case study of urban runoff in the Fyris river

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Tove Gannholm Johansson; [2022]
    Keywords : urban runoff; flow; rain event; pollution concentration; EQS; MAC-EQS; dagvatten; flöde; regntillfälle; föroreningskoncentration; MKN; MAC-MKN;

    Abstract : The purpose of this study was (1) to study the proportion (X) of the flow in a watercourse that consists of urban runoff during a rain event and (2) to evaluate the risk that a few chosen pollutants, transported by urban runoff, exceed the maximum allowed concentration in the watercourse according to the environmental quality standards (MAC-EQS). The Fyris river in Uppsala, Sweden, was selected as a case study. READ MORE

  3. 7. The Influence of Pigment Additives on the Barrier Properties of Dispersion Coatings

    University essay from KTH/Fiber- och polymerteknologi

    Author : Malin Eriksson; [2022]
    Keywords : dispersion coating; paper products; pigment; sustainable development; circular economy; Dispersionsbarriär; pappersprodukter; pigment; hållbar utveckling; cirkulär ekonomi;

    Abstract : Att minska plastavfall och uppmuntra återvinning har fått hög prioritet i många affärsverksamheter och olika typer av regleringar implementeras för att minska den negativa påverkan av plastanvändningen. Papper och kartong består i huvudsak av cellulosa som har många egenskaper som är essentiella för en hållbar ekonomi (t.ex. READ MORE

  4. 8. Chemical Kinetic Modeling of the Combustion of NH3/H2 and NH3/syngas Fuel Mixtures Using a Large Amount of Experimental Data

    University essay from Lunds universitet/Kemiska institutionen

    Author : Andras Szanthoffer; [2022]
    Keywords : Ammonia combustion; Detailed chemical kinetic mechanisms; Quantitative mechanism comparison; Local sensitivity analysis; Chemical Physics; Chemistry;

    Abstract : Nowadays, due to the global climate change, it is extremely important to find alternative fuels to reduce the utilization of fossil fuels and the emission of air pollutants such as carbon dioxide (CO2), hydrocarbon pollutants, and soot. Ammonia (NH3) is a promising carbon free fuel candidate that can store and transport renewable hydrogen (H2) energy. READ MORE

  5. 9. Modeling of Biomass Gasification with Adaptation to Biological Methanation Using Aspen Plus®

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Abdallah Almashharawi; [2022]
    Keywords : Biomass gasification; Cyclone gasifier; Aspen Plus; Syngas; Synthesis gas; Biogas; Biological methanation; Methane; CO2; RISE; Meva; Gas-cleaning; Gas cleaning; equilibrium; kinetic; pyrolysis; validation; Moisture content; Chemical engineering; Technology and Engineering;

    Abstract : حظيت البدائل المتجددة باهتمام كبير في ظل انخفاض موارد الوقود الاحفوري المتاحة وزيادة المتطلبات البيئية. ان انتاج المواد الكيميائية والوقود المتجدد من خلال استغلال الكتلة الحيوية يقدم طريقا واعدا لدفع هذا التحول الى الامام. READ MORE

  6. 10. Ethylene to Liquid Hydrocarbons by Heterogeneously Catalyzed Oligomerization on ZSM-5

    University essay from Uppsala universitet/Fysikalisk kemi

    Author : Gustav Halldén; [2022]
    Keywords : ethylene; ethane; oligomerization; catalyst; heterogeneous catalysis ZSM-5; zeolite;

    Abstract : The aim is to produce aliphatic liquid hydrocarbons using heterogeneous ethylene oligomerization. Thiscould potentially produce renewable synthetic fuels. Heterogeneous catalysis has some advantages overhomogeneous catalysis regarding some sustainability aspects. READ MORE