Removal of Sour Gases Using Algae Derived Activated Carbon
Author
Jakobsen, Josefine Rønn
Term
4. term
Education
Publication year
2016
Submitted on
2016-06-09
Pages
113
Abstract
This thesis investigates whether activated carbon produced from algae can be used to remove sour gases from natural gas, with particular emphasis on hydrogen sulphide (H2S). Guided by the research questions—how to synthesize activated carbon from algae, which activation method yields the highest surface area, and how the material adsorbs sour gases—the work describes the full process from algal feedstock to finished adsorbent. Multiple samples are prepared using different chemical activation routes (including traditional methods and sulfuric acid treatment), and burn-off is assessed. The materials are characterized by specific surface area (BET) and pore size distribution (Dollimore–Heal), and their H2S uptake is tested in a simple laboratory setup. Elemental analysis is used to evaluate changes in composition, and adsorption as a removal method is discussed in relation to established technologies for sour gas treatment; the report also includes a CO2 adsorption test. The results are used to compare samples and identify the most favorable one for H2S removal. Overall, the study presents a method to synthesize and analyze algae-derived activated carbon and assesses whether the materials meet the requirements for an effective adsorbent. Quantitative performance details are not included in this excerpt.
Dette speciale undersøger, om aktiveret kul fremstillet af alger kan anvendes til at fjerne sure gasser fra naturgas, med særligt fokus på hydrogensulfid (H2S). Ud fra problemstillingen—hvordan aktiveret kul kan syntetiseres fra alger, hvilken aktiveringsmetode der giver det højeste overfladeareal, og hvordan materialet adsorberer sure gasser—beskrives hele forløbet fra algemateriale til færdigt adsorbent. Der fremstilles flere prøver via forskellige kemiske aktiveringer (herunder traditionelle metoder og svovlsyrebehandling), og udbrændingsgrad vurderes. Materialerne karakteriseres ved bestemmelse af specifikt overfladeareal (BET) og porestørrelsesfordeling (Dollimore–Heal), og deres evne til at adsorbere H2S testes i en simpel laboratorieopstilling. Derudover anvendes elementaranalyse, og adsorption som rensningsmetode sættes i perspektiv i forhold til gængse teknologier til fjernelse af sure gasser; der indgår også en test af CO2-adsorption i rapporten. Resultaterne bruges til at sammenligne prøverne og identificere den mest favorable til H2S-fjernelse. Arbejdet præsenterer således en metode til at syntetisere og analysere algebaseret aktiveret kul og vurderer, om materialerne lever op til kravene til et effektivt adsorbent. Kvantitative detaljer om ydeevne er ikke inkluderet i dette uddrag.
[This apstract has been generated with the help of AI directly from the project full text]
Keywords
Carbon ; Activated ; Algae ; BET ; Adsorption