Patent classifications
C07C2527/125
Process for the production of renewable distillate-range hydrocarbons
A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.
INTEGRATION OF A DEHYDROGENATION UNIT AND AN ALKYLATION UNIT
The present invention relates to the integration of an alkylation unit for use in a hydrocarbon conversion process. More specifically, the present invention relates to the integration of a dehydrogenation unit and an alkylation unit and the placement of different isomerization units located off the deisobutanizer and the debutanizer.
Processes to make alkylate gasoline by sulfur-contaminated ionic liquid catalyzed alkylation
Processes are provided for making an alkylate gasoline blending component, comprising: a. feeding an olefin feed comprising greater than 80 wppm of a sulfur contaminant comprising mercaptans, alkyl sulfides, and alkyl disulfides to a chloroaluminate ionic liquid catalyst, wherein a level of the sulfur contaminant accumulates in the chloroaluminate ionic liquid catalyst to make a sulfur-contaminated ionic liquid catalyst comprising 300 to 20,000 wppm of a sulfur; and b. alkylating the olefin feed with an isoparaffin using the sulfur-contaminated ionic liquid catalyst to make the alkylate gasoline blending component having a final boiling point below 221? C. An alkylation process exclusively utilizing coker LPG olefins is also provided.
REGENERATION OF AN IONIC LIQUID CATALYST BY HYDROGENATION USING A MACROPOROUS NOBLE METAL CATALYST
The present disclosure provides a macroporous noble metal catalyst and processes employing such catalysts for the regeneration of deactivated ionic liquid catalyst containing conjunct polymer.
Methods of producing para-xylene and terephthalic acid
The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose, starch, sugar) and ethylene in the presence of a catalyst. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF), which may be converted into para-xylene by cycloaddition of ethylene to DMF. Para-xylene can then be oxidized to form terephthalic acid.
VISCOSITY MODIFIERS FOR DECREASING THE VISCOSITY OF IONIC LIQUIDS
A process utilizing an ionic liquid is described. The process includes contacting a hydrocarbon feed with an ionic liquid component, the ionic liquid component comprising a mixture of a first ionic liquid and a viscosity modifier, wherein a viscosity of the ionic liquid component is at least about 10% less than a viscosity of the first ionic liquid.
Production of Isobutylene, Isoamylene, or Alkylates from Mixed Alkanes
A method includes brominating a butanes feed stream including i-butane in a bromination reactor to form a bromination effluent stream including t-butyl bromide. The method includes dehydrobrominating the t-butyl bromide to form isobutylene. Another method includes brominating a mixed pentanes feed stream including i-pentane and n-pentane in a bromination reactor to form a bromination effluent stream including t-pentyl bromide. The method includes dehydrobrominating the t-pentyl bromide to form isoamylene and HBr.
ACIDIC CATALYST
Catalysts are disclosed having metal oxide support structures and acidic reaction sites. The reaction sites may be according to the general formula M.sub.xO.sub.yAlBr.sub.zX].sup.H.sup.+ where x is one or two; y is one or two; z is one or two; X is selected from Br or Cl; M is Al or Si and one or more of M, O and Al has a molecular bond with the metal oxide support structure.
Process for the Production of Renewable Distillate-Range Hydrocarbons
A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.
Process for preparing cyclohexane with starting materials originating from a steamcracking process
- Steffen Tschirschwitz ,
- Kathrin Wissel-Stoll ,
- Jochen Bürkle ,
- Albena Kostova ,
- Markus Schmitt ,
- Veronika Wloka ,
- Stephan Deuerlein ,
- Marco Bosch ,
- Steffen Oehlenschläger ,
- Michael SCHREIBER ,
- Gauthier Luc Maurice Averlant ,
- Joni Joni ,
- Roman Prochazka ,
- Martin Bock ,
- Alois Kindler ,
- Daniela Malkowsky ,
- Katharina Spuhl ,
- Stefan Bitterlich ,
- Daniel Pfeiffer
The present invention relates to a process for preparing cyclohexane by isomerizing a hydrocarbon mixture (HM1) comprising methylcyclopentane (MCP) in the presence of a catalyst. The catalyst is preferably an acidic ionic liquid. The starting material used is a stream (S1) which originates from a steamcracking process. The hydrocarbon mixture (HM1) obtained from this stream (S1) in an apparatus for aromatics removal has a reduced aromatics content compared to stream (S1), and (HM1) may optionally also be (virtually) free of aromatics. Depending on the type and amount of the aromatics remaining in the hydrocarbon mixture (HM1), especially in the case that benzene is present, the isomerization may additionally be preceded by performance of a hydrogenation of (HM1). In addition, depending on the presence of other components of (HM1), further purification steps may optionally be performed prior to or after the isomerization or hydrogenation. High-purity (on-spec) cyclohexane is preferably isolated from the hydrocarbon mixture (HM2) obtained in the isomerization, the specifications being, for example, those applicable to the use of the cyclohexane for the preparation, known to those skilled in the art, of caprolactam.