혼합 크실렌 및 고옥탄가 C9+ 방향족의 공생산 방법

• Main Authors: LAI WENYIH F, CHEN TAN JEN, GO ANTHONY
• Format: Patent
• Language: Korean
• Published: 12.11.2020
• 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

혼합 크실렌 및 C9+ 탄화수소의 제조 방법이 개시되며, 여기서 벤젠 및/또는 톨루엔을 포함하는 방향족 탄화수소 공급 원료를 알킬화 조건하에 알킬화 촉매의 존재하에 메탄올 및/또는 디메틸 에테르를 포함하는 알킬화제와 접촉시켜, 혼합 크실렌 및 C9+ 탄화수소를 포함하는 알킬화 방향족 생성물 스트림을 생성한다. 혼합 크실렌은 이후에 파라-크실렌으로 전환되고, C9+ 탄화수소 및 이의 성분은 모터 연료 블렌딩 성분으로서 공급될 수 있다. 알킬화 촉매는 0 초과부터 약 3까지 범위의 구속 지수를 갖는 분자체를 포함한다. 방향족 탄화수소 대 알킬화제의 몰비는 1:1 초과 내지 4:1 미만의 범위이다. Disclosed is a process for producing mixed xylenes and C9+ hydrocarbons in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating agent comprising methanol and/or dimethyl ether under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product stream comprising the mixed xylenes and C9+ hydrocarbons. The mixed xylenes are subsequently converted to para-xylene, and the C9+ hydrocarbons and its components may be supplied as motor fuels blending components. The alkylation catalyst comprises a molecular sieve having a Constraint Index in the range from greater than zero up to about 3. The molar ratio of aromatic hydrocarbon to alkylating agent is in the range of greater than 1:1 to less than 4:1.