摘要:
A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100° C., at which temperature its kinematic viscosity, as measured by ASTM D-445, is above 8 cSt, has an initial boiling point of least 850° F. (454° C.) and an end boiling point of at least 1000° F. (538° C.), wherein the branching index (BI), as measured by the percentage of methyl hydrogens, and the branching proximity (CH2>4), as measured by the percentage of recurring methylene carbons which are four or more carbon atoms removed from an end group or branch, of said isoparaffinic hydrocarbon molecules, are such that: (a) BI−0.5(CH2>4) 4)
摘要:
A heavy lubricant base stock is made by (a) producing a synthesis gas from natural gas, (b) reacting the H2 and CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize waxy hydrocarbons boiling in the heavy lubricant oil range, which are hydrodewaxed it at least two stages, with interstage separation and removal of the lighter material.
摘要翻译:重质润滑剂基础原料是通过(a)从天然气生产合成气制备的,(b)使钴 - 费 - 托催化剂存在下的气体中的H 2 H 2和CO与 有效地合成在重润滑油范围内沸腾的蜡质烃的反应条件,其被加氢脱蜡至少两个阶段,通过级间分离和去除较轻的材料。
摘要:
Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided 10-ring, 1-dimensional zeolite catalyst that has been reduced and then treated by contacting it with the synthesized hydrocarbons containing one or more oxygenates, including indigenous oxygenate. Tail gas from the hydrodewaxing reactor can be used for the hydrocarbon synthesis.
摘要:
High viscosity lube base oils are produced from syngas by converting syngas under Fischer-Tropsch reaction conditions which are sufficient to produce hydrocarbon products containing greater than 20 lbs of 700° F.+(371° C.+) product per 100 lbs of CO converted. A 450° F.+(232° C.+) cut is separated from the hydrocarbon products and catalytically hydroisomerized and distilled to provide high viscosity lube base oils.