Abstract:
본 발명은 디벤조티오펜설폰의 이산화황 제거용 촉매 및 이를 이용한 비페닐의 제조방법에 관한 것으로서, 더욱 상세하게 설명하면, 특정 금속이 담지된 메조포어 분자체를 포함하는 촉매 및 상기 촉매 하에서, 비페닐을 제조하는 방법에 관한 것이다. 본 발명의 상기 촉매를 이용하여 디벤조티오펜설폰이 이산화황 등의 황 화합물을 제거 시, 매우 효과적으로 황 화합물을 제거할 수 있으며, 이를 통하여 비페닐을 높은 수율로 얻을 수 있다. 디벤조티오펜설폰, 비페닐, 메조포어 분자체
Abstract:
PURPOSE: A manufacturing method of an iron-based catalyst used in a fischer-tropsch synthesis for increasing the converting rate of the carbon monoxide is provided to maintain the reaction temperature at low temperature by the iron-based catalyst. CONSTITUTION: Distilled water is mixed in a ferric nitrate globe hydrate, a mixed solution of the aqueous solution of a copper nitrate, aluminium nitrate and ammonium hydroxide aqueous solution. The mixture is coprecipitated after the dropping of mixture(S100). The powder obtains by using the drying of the manufactured reaction solution(S200). The powder is dispersed on the distilled water slurry. The potassium carbonate is impregnated(S300). The manufactured mixture is dried. The dried mixture is plasticized(S400).
Abstract:
본 발명은 테트라에틸암모늄 하이드록사이드(TEAOH), 디프로필아민(DPA), 이소프로필아민(IPA), 몰포린 또는 이들의 혼합물과, 디에틸아민(DEA)이 일정량 혼합된 유기주형체를 이용한 수열합성법으로 고가의 테트라에틸암모늄 하이드록사이드 함량을 낮추어 경제적이고 동시에 비표면적이 크고, 결정크기 분포도가 균일하며, 결정성이 우수한 실리코알루미노포스페이트(SAPO)-34 결정상을 갖는 촉매와, 상기 촉매하에서 C 1 ∼ C 4 의 함산소화합물(oxygenates)의 전환반응을 수행하여 종래와 동등 이상의 전환율 및 수율을 유지하고, 특히, 개선된 결정성에 의한 촉매의 수열안정성을 크게 향상시키므로써 우수한 촉매 내구성을 갖는 경질올레핀의 제조방법에 관한 것이다. 메탄올, 경질 올레핀, 혼합 유기주형체, 디에틸아민, 디프로필아민, 이소프로필아민, 트리에틸아민, 모폴린, 테트라에틸암모늄 하이드록사이드, 실리코알루미노포스페이트
Abstract:
A method for manufacturing a complex catalyst for making light olefins from an oxygenated compound and a manufacturing method of the light olefins using the same complex catalyst are provided to manufacture a complex catalyst of ZSM-5/SAPO-34 by performing a hydrothermal synthesis and plastic process about the compound. A method for manufacturing a complex catalyst for making light olefins from an oxygenated compound comprises the following steps of: for manufacturing alumina-silica mixed solution of a ZSM-5 type; manufacturing a synthesis gel of the ZSM-5 type; manufacturing a slurry of the ZSM-5 type after washing filtering and hydrothermal composition of the synthesis gel; manufacturing the alumina-silica compound of a SAPO-34 type; manufacturing a combinatorial synthesis gel of a ZSM-5/SAPO-34 type; and manufacturing a complex catalyst of a ZSM-5/SAPO-34 type.
Abstract:
A method for preparing a composite catalyst for a light olefin obtained from an oxygenated compound is provided to control a selectivity ratio of propylene/ethylene so as to control a composition ratio of a reaction product. A method for preparing a composite catalyst for a light olefin obtained from an oxygenated compound comprises the following steps. A ZSM-5 basic solution is prepared by mixing ZSM-5 and alkaline solution. An alumina basic solution for SAPO-34 is prepared by mixing an alumina precursor and a tetraethyl ammonium hydroxide. An aluminium phosphate solution for SAPO-34 is prepared by mixing the alumina basic solution, phosphoric acid, and water.
Abstract:
A high purity refining method of acetone is provided to refine acetone containing organic impurity and inorganic metallic impurity through an ion exchange resin tower and a batch type distillation tower containing zeolite 4A. A high purity refining method of acetone comprises (1) a step for obtaining refined acetone by injecting the collected acetone containing organic impurity, inorganic metallic impurity and moisture to the top of a tower having ion-exchange resin at a flow rate of 10~100 cc /minute . g (the flow rate of the collected acetone per the ion-exchange resin gram); and (2) a step for obtaining acetone by injecting the first refined acetone in a batch type distillation tower continuously and distilling it at a distillation temperature of 60~80 °C with the reflux ratio of 2~6. The batch type distillation tower contains 1~5 % of zeolite 4A based on the weight of the collected acetone.
Abstract translation:提供丙酮的高纯度精制方法,通过离子交换树脂塔和含沸石4A的间歇式蒸馏塔来提炼含丙酮的有机杂质和无机金属杂质。 丙酮的高纯度精炼方法包括:(1)通过将收集到的含丙酮的有机杂质,无机金属杂质和水分注入到具有离子交换树脂的塔顶部以10〜100的流速获得精制丙酮的步骤 cc /分钟。 g(离子交换树脂克收集的丙酮的流量); 和(2)通过在间歇式蒸馏塔中连续注入第一精制丙酮并在60〜80℃的蒸馏温度下以2〜6的回流比蒸馏得到丙酮的步骤。 基于收集的丙酮的重量,间歇式蒸馏塔含有1〜5%的沸石4A。
Abstract:
본 발명은 중간생성물의 선택도 모니터링을 통한 메탄올로부터 경질올레핀을 제조하는 순환유동층 공정의 효율적 운전에 관한 것으로, 구체적으로 디메틸에테르(DME) 선택도를 모니터링하여 사용된 촉매의 비활성화 정도를 예측하고 촉매 재생을 위한 공기 유량을 조절하여 최적화된 코크 정도를 유지시킴으로써 경질올레핀계 탄화수소의 생산성을 효과적으로 증진할 수 있고, 특히 에틸렌 및 프로필렌에 대한 우수한 선택성을 유지할 수 있는 방법에 관한 것이다.