• 专利标题:   Graphene adsorbent for gasoline and naphtha desulfurization, contains graphene dispersion, manganese dioxide, copper oxide, zirconium oxide, polyvinyl alcohol, montmorillonite, attapulgite, ethyl acetate, glycerol, and water hyacinth.
  • 专利号:   CN108212087-A
  • 发明人:   ZHANG C
  • 专利权人:   SHANDONG XINGHUO SCI TECHNOLOGY INST
  • 国际专利分类:   B01J020/20, B01J020/30, C10G025/00, C10G025/05
  • 专利详细信息:   CN108212087-A 29 Jun 2018 B01J-020/20 201855 Pages: 6 Chinese
  • 申请详细信息:   CN108212087-A CN10078657 26 Jan 2018
  • 优先权号:   CN10078657

▎ 摘  要

NOVELTY - A graphene adsorbent comprises 15-22 pts. wt. graphene dispersion, 2-4 pts. wt. manganese dioxide, 1.5-3 pts. wt. copper oxide, 2-6 pts. wt. zirconium oxide, 8-14 pts. wt. polyvinyl alcohol, 25-33 pts. wt. montmorillonite, 12-18 pts. wt. attapulgite, 3-7 pts. wt. ethyl acetate, 10-15 pts. wt. glycerol, 11-16 pts. wt. 60-75 %mass strong alkaline solution, and 6-10 pts. wt. water hyacinth. USE - Graphene adsorbent is used for gasoline and naphtha desulfurization. ADVANTAGE - The graphene adsorbent has excellent sulfide adsorption capability, and high specific surface area and pore volume. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene adsorbent, which involves mixing water hyacinth with acidified ethanol, crushing, heat-refluxing, extracting, filtering to collect the filtrate and residue, mixing the residue with acidified ethanol solution, reflux-extracting, filtering and collecting the filtrate, combining the boiled liquid of filtrates, putting the filtrate at low temperature, filtering, decompressing, evaporating and concentrating to obtain water hyacinth extract,, adding manganese dioxide, copper oxide, and zirconium oxide to graphene dispersion, slowly adding strong alkaline solution, stirring for 2-3 hours, ultrasonically dispersing for 0.8-1.5 hours to obtain a composite suspension, mixing ethyl acetate and glycerol to obtain ethanol solution, adding polyvinyl alcohol and 4-6 times deionized water to obtain polyvinyl alcohol solution, soaking montmorillonite and attapulgite in polyvinyl alcohol solution for 45-60 minutes to obtain modified montmorillonite and modified attapulgite, mixing modified montmorillonite, modified attapulgite, composite suspension, and ethanol solution, grinding, sieving using 80-100-mesh sieve, dripping water hyacinth extract while ultrasonically stirring, heating at 90-105 degrees C for 20-26 hours, drying at 60-70 degrees C, and calcining under nitrogen protection at 300-450 degrees C for 6-8 hours.