접촉 분해 촉매 및 이의 제조방법

• Main Authors: LIN WEI, ZHOU JIHONG, SUN MIN, SHEN NINGYUAN, YANG XUE, WANG ZHENBO
• Format: Patent
• Language: Korean
• Published: 28.02.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

본 발명은 촉매 제조 분야에 속하며, 접촉 분해 촉매 및 이의 제조 방법에 관한 것이다. 접촉 분해 촉매는 분해 활성 성분 10-70중량%, 결합제 10-60중량% 및 클레이 10-70중량%를 포함하고, 여기서 분해 활성 성분은 제1 Y형 분자체 5-100중량% 및 제2 분자체 0-95중량%를 포함하고; 제1 Y형 분자체는 카올린의 결정 변형에 기초한 변형된 분자체이며, 2중량% 미만의 산화나트륨 함량을 갖는다. 촉매를 제조하는 방법은 카올린의 결정 변형에 기초한 변형된 분자체, 결합제 및 클레이를 포함하는 분해 활성 성분을 물과 격렬하게 혼합 및 교반하는 단계; 분무 건조하는 단계; 세척하는 단계; 여과하는 단계; 및 건조하는 단계를 포함한다. 촉매는 중유의 접촉 분해 반응에 사용되며, 우수한 코크스 선택도를 가질 뿐만 아니라 높은 중유 전환율을 갖는다. The present invention belongs to the field of catalyst preparation, and relates to a catalytic cracking catalyst and a process for preparing the same. The catalytic cracking catalyst comprises 10-70 wt% of a cracking active component, 10-60 wt% of a binder and 10-70 wt% of a clay, wherein the cracking active component comprises 5-100 wt% of a first Y-type molecular sieve and 0-95 wt% of a second molecular sieve; the first Y-type molecular sieve is a modified molecular sieve based on the crystal modification of kaolin, and has the sodium oxide content of less than 2 wt%. The process for preparing the catalyst comprises the steps of vigorously mixing and stirring a cracking active component comprising a modified molecular sieve based on the crystal modification of kaolin, a binder and a clay with water; spray drying; washing; filtering; and drying. The catalyst is used in the catalytic cracking reaction of heavy oils, and has a good coke selectivity, as well as a higher heavy oil conversion rate.