PROCESS FOR PREPARING HYDROCARBON MIXTURE EXHIBITING UNIQUE BRANCHING STRUCTURE

• Main Authors: WELLS JASON, HE LINHAI, CHEN CONGYAN, PRADHAN AJIT, ROSALLI JASON, HAO YALIN, BARALT EDUARDO, THOMAS BIJU, HO WILLBE
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2021
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; 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; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

Provided herein is a unique process that prepares a saturated hydrocarbon mixture with well-controlled structural characteristics that address the performance requirements driven by the stricter environmental and fuel economy regulations for automotive engine oils. The process allows for the branching characteristics of the hydrocarbon molecules to be controlled so as to consistently provide a composition that has a surprising CCS viscosity at -35 DEG C (ASTM D5329) and Noack volatility (ASTM D5800) relationship. The process comprises providing a specific olefmic feedstock, oligomerizing in the presence of a BF3 catalyst, and hydroisomerizing in the presence of a noble-metal impregnated, lO-member ring zeolite catalyst. 本文提供的是一种独特的方法，其制备了具有良好受控的结构特性的饱和烃混合物，其解决了由针对汽车发动机油的更严格的环境和燃料经济性法规所驱动的性能要求。所述方法允许控制烃分子的分支特性，以便一致地提供具有令人惊讶的在-35℃的CCS粘度(ASTM D5329)和Noack挥发度(ASTM D5800)的相关性的组合物。所述方法包括提供特定的烯烃原料，在BF3催化剂存在下低聚，和在贵金属浸渍的10元环沸石催化剂存在下加氢异构化。