A process for making mesophase and/or isotropic pitch. An aromatic rich liquid is charged at high temperature and pressure to a first thermal polymerization reactor to produce an isotropic pitch rich liquid which is flashed. Residual liquid is charged to a second thermal reactor to produce mesophase pitch. The reactors can be either tubular reactors or CSTRs.

A process for the production of middle distillates by the catalytically promoted hydration of olefinic compounds having a carbon number ranging from 7 to 14 to convert the olefins to the corresponding mixed alcohols having a higher boiling point that is in the diesel range, the process being conducted in a continuous stirred tank reactor, e.g., an ebullated-bed reactor, utilizing catalysts that include soluble homogeneous acidic compounds and solid heterogeneous compounds such as resins, and amorphous or structured metal oxides containing elements selected from IUPAC Groups 4-10, 13 and 14, and having Lewis or Bronsted acid sites.

Integrated systems are provided for the production of higher hydrocarbon compositions, for example liquid hydrocarbon compositions, from methane using an oxidative coupling of methane system to convert methane to ethylene, followed by conversion of ethylene to selectable higher hydrocarbon products. Integrated systems and processes are provided that process methane through to these higher hydrocarbon products.

Integrated systems are provided for the production of higher hydrocarbon compositions, for example liquid hydrocarbon compositions, from methane using an oxidative coupling of methane system to convert methane to ethylene, followed by conversion of ethylene to selectable higher hydrocarbon products. Integrated systems and processes are provided that process methane through to these higher hydrocarbon products.

Provided herein are processes for ethylene oligomerization in the presence of an ionic liquid catalyst and a co-catalyst to produce a hydrocarbon product comprising C.sub.10-C.sub.55 oligomers.

Provided herein are processes for ethylene oligomerization in the presence of an ionic liquid catalyst and a co-catalyst to produce a hydrocarbon product comprising C.sub.10-C.sub.55 oligomers.

A catalytic conversion process for producing gasoline and propylene includes the steps of 1) subjecting a feedstock oil to a first catalytic conversion reaction in a first catalytic conversion reaction device to obtain a first reaction product; 2) separating the first reaction product to obtain a propylene fraction, a gasoline fraction and a fraction comprising C.sub.4 olefin; 3) carrying out an oligomerization reaction on the fraction comprising C.sub.4 olefin in an oligomerization reactor to obtain an oligomerization product comprising C.sub.12 olefin, and optionally separating the oligomerization product to obtain a fraction comprising C.sub.12 olefin; 4) recycling the C.sub.12 olefin-containing oligomerization product or fraction to the first catalytic conversion reaction device, and/or sending the C.sub.12 olefin-containing oligomerization product or fraction to a second catalytic conversion reaction device for a second catalytic conversion reaction to obtain a second reaction product comprising propylene.

A catalytic conversion process for producing gasoline and propylene includes the steps of 1) subjecting a feedstock oil to a first catalytic conversion reaction in a first catalytic conversion reaction device to obtain a first reaction product; 2) separating the first reaction product to obtain a propylene fraction, a gasoline fraction and a fraction comprising C.sub.4 olefin; 3) carrying out an oligomerization reaction on the fraction comprising C.sub.4 olefin in an oligomerization reactor to obtain an oligomerization product comprising C.sub.12 olefin, and optionally separating the oligomerization product to obtain a fraction comprising C.sub.12 olefin; 4) recycling the C.sub.12 olefin-containing oligomerization product or fraction to the first catalytic conversion reaction device, and/or sending the C.sub.12 olefin-containing oligomerization product or fraction to a second catalytic conversion reaction device for a second catalytic conversion reaction to obtain a second reaction product comprising propylene.

The present invention provides a method for preparing liquid fuel by using -valerolactone, and steps are as follows: placing a phosphoric acid solution and -valerolactone in a reaction tank for reaction at 220-260 C. for 3-12 hours, cooling to room temperature to obtain a liquid fuel. Using the phosphoric acid solution as a catalyst, -valerolactone can be catalytically converted in one step at a mild temperature (220-260 C.) to produce light and heavy oil products with high calorific value, with a total oil yield up to 33.5 wt %. This technique is simple in process flow and convenience to operate, and has industrial application prospects. Compared with other technologies for preparing high-grade oil products by catalytically converting -valerolactone, using the phosphoric acid solution for catalytic conversion has the obvious advantages that no expensive hydrogen needs to be provided externally, the reaction process is simple, and the temperature is mild.

The present disclosure relates to a method for upgrading hydrocarbon using C4, C5 and C6 streams, and more specifically, to a method for upgrading hydrocarbons using C4, C5 and C6 streams. The method includes the steps of: preparing C4, C5 and C6 streams, which are the products of naphtha catalytic cracking (NCC) process, heavy oil upgrading process, thermal cracking process, or fluidized catalytic cracking (FCC or RFCC) process; oligomerizing the C4, C5 and C6 streams with a catalyst to produce branched unsaturated hydrocarbons; and fractional distillating the branched unsaturated hydrocarbons to separate into C14-18 products or C32-40 products.