Abstract:
본 발명은 몰리브데늄이 함유된 선택산화탈황용 촉매에 관한 것으로서, 더욱 상세하게는 실리카-알루미나 담체에 주촉매 성분으로 몰리브데늄을 담지하거나, 여기에 추가적으로 촉진제 성분을 도입하여 수송유분에 포함된 유기황 성분을 선택부분산화 반응에 의해서 술폰(sulfone) 화합물로 전환 후 이를 제거하여 황 함량이 10 ppm 이하로 제조하는 선택산화탈황(selective ODS)용 촉매를 개발함으로써, 높은 황 화합물 함량을 갖는 석유계 탄화수소에 대한 선택적 산화탈황성능을 최대로 하고 촉매의 수명을 연장시킨 선택산화탈황용 촉매에 관한 것이다. 몰리브데늄, 선택산화탈황용 촉매, 실리카-알루미나 담체, 촉진제
Abstract:
PURPOSE: A fisher-tropsch synthetic method using C5~C7 normal hydrocarbon supercritical fluid and an iron-based catalyst is provided to enhance the selectivity of olefin and C5+ while reducing the generation rate of carbon dioxide. CONSTITUTION: A fisher-tropsch synthetic method for producing liquid hydrocarbon comprises the following steps: inserting a Fe/Cu/A/K iron-based catalyst into a fixed bed reactor and reducing under a hydrogen atmosphere; inserting syngas to the fixed bed reactor; and performing the fisher-tropsch synthetic method by adding C5~C7 normal hydrocarbon supercritical fluid to the fixed bed reactor. The composition rate of the iron-based catalyst is 100 parts of Fe by weight, 6 parts of Cu by weight, 16 parts of Al by weight, and 4 parts of K by weight.
Abstract translation:目的:提供使用C5〜C7正烃超临界流体和铁基催化剂的渔托合成方法,以提高烯烃和C5 +的选择性,同时降低二氧化碳的产生速率。 构成:用于制备液体烃的渔托合成方法包括以下步骤:将Fe / Cu / A / K铁基催化剂插入固定床反应器中并在氢气氛下还原; 将合成气插入固定床反应器; 并通过在固定床反应器中加入C5〜C7正烃超临界流体进行渔托合成法。 铁系催化剂的组成比为100重量份的Fe,6重量份的Cu,16重量份的Al和4重量份的K。
Abstract:
PURPOSE: A molybdenum-containing catalyst for selective oxidative desulfurization is provided to maximize the selective oxidative desulfurization performance about petroleum hydrocarbon having high sulfur compound content. CONSTITUTION: A molybdenum-containing catalyst for selective oxidative desulfurization is formed by supporting molybdenum in a silica-alumina carrier. The silica-alumina carrier contains silica of 0.5 ~ 10 weight%. The molybdenum of 10 ~ 20 parts by weight is supported on the silica-alumina carrier of 100 parts by weight. The bismuth or the manganese is additionally supported on the carrier as an accelerant component.
Abstract:
PURPOSE: An anionic multi-chain type surfactant is provided to ensure remarkably low critical micelle concentration compared to a conventional anionic surfactant and excellent surfactant activation effect in a low concentration. CONSTITUTION: An anionic multi-chain type surfactant has a structure represented by chemical formula 1. A method for preparing the anionic multi-chain type surfactant comprises a step of preparing a disulfonate compound of chemical formula 1 by reacting a diol compound of chemical formula 2 and 1,3-propane sultone in the presence of a basic catalyst. In the chemical formula 1 and 2, R^1 and R^2 are independently selected from C1~C30 linear or branched alkyl and M is selected from the alkali metal.
Abstract:
The iodine-free salt suitable for thyroid patients, and a method for preparing the iodine-free salt are provided to make the iodine-free salt having a flower shape, to reduce the solid part insoluble in water and to improve the taste and preference. The iodine-free salt is prepared by adding 1-10 parts by weight of the saturated refined salt aqueous solution containing 2-5 ppb of iodine to 1 part by weight of the bay salt containing 50-300 ppm of iodine, and filtering and washing it to make the bay salt containing 1-10 ppm of iodine; and mixing 1-5 parts by weight of the washed bay salt and 5-9 parts by weight of the refined salt containing 2-5 ppb of iodine in water and crystallizing it by evaporation at 70-100 deg.C.