Abstract: The invention relates to a process for the production of ethylene by oxidative dehydrogenation of ethane, comprising: a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions, resulting in a stream comprising ethylene, unconverted ethane and light components; b) subjecting ethylene, unconverted ethane and light components from the stream resulting from step a) to distillation, resulting in a stream comprising ethylene and light components and a stream comprising unconverted ethane; c) optionally recycling unconverted ethane from the stream comprising unconverted ethane resulting from step b) to step a); and d) subjecting ethylene and light components from the stream comprising ethylene and light components resulting from step b) to distillation at a top column pressure which is higher than the top column pressure in step b), resulting in a stream comprising light components and a stream comprising ethylene.

Abstract: The invention relates to a process for the production of ethylene by oxidative dehydrogenation of ethane, comprising: a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions, resulting in a stream comprising ethylene, unconverted ethane and light components; b) subjecting ethylene, unconverted ethane and light components from the stream resulting from step a) to distillation, resulting in a stream comprising ethylene and light components and a stream comprising unconverted ethane; c) optionally recycling unconverted ethane from the stream comprising unconverted ethane resulting from step b) to step a); and d) subjecting ethylene and light components from the stream comprising ethylene and light components resulting from step b) to distillation at a top column pressure which is higher than the top column pressure in step b), resulting in a stream comprising light components and a stream comprising ethylene.

Abstract: The invention relates to a process for the production of an alkene by alkane oxidative dehydrogenation, comprising: (a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a catalyst comprising a mixed metal oxide, resulting in a stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne; (b) removing water from at least part of the stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne resulting from step (a), resulting in a stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne; (c) removing unconverted oxygen, carbon monoxide and optionally alkyne from at least part of the stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne resulting from s

Abstract: The invention relates to a process for oxidative dehydrogenation of ethane, comprising the steps of: (a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions; (b) removing water from at least part of the effluent resulting from step (a); (c) optionally removing unconverted oxygen and/or carbon monoxide and/or acetylene from at least part of the stream comprising ethylene, unconverted ethane, carbon dioxide, optionally unconverted oxygen, optionally carbon monoxide and optionally acetylene resulting from step (b); (d) removing ethylene from at least part of the stream comprising ethylene, unconverted ethane and carbon dioxide resulting from step (b) or (c) by a complexation separation method; (e) partially and selectively removing carbon dioxide from at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (d); (f) recycling at least part of the stream comprising unconverted ethane and carbon dioxided resulting from step (e) to step (a).

Abstract: The invention relates to a process for oxidative dehydrogenation of ethane, comprising the steps of: (a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions; (b) removing water from at least part of the effluent resulting from step (a); (c) optionally removing unconverted oxygen and/or carbon monoxide and/or ycetylene from at least part of the stream comprising ethylene, unconverted ethane, carbon dioxide, optionally unconverted oxygen, optionally carbon monoxide and optionally acetylene resulting from step (b); (d) removing ethylene from at least part of the stream comprising ethylene, unconverted ethane and carbon dioxide resulting from step (b) or (c) by a complexation separation method; (e) partially and selectively removing carbon dioxide from at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (d); (f) recycling at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (e) to step (a).

Abstract: A process for oxidative coupling of methane (OCM), comprising the steps of: (a) contactingoxygen and methane with an OCM catalyst, resulting in a reactor effluent comprising ethylene, ethane, methane, carbon dioxide and water; (b) cooling at least a part of the reactor effluent from step (a) to obtain a liquid stream comprising water and a gas stream comprising ethylene, ethane, methane and carbon dioxide; (c) removing carbon dioxide from at least a part of the gas stream from step (b) resulting in a gas stream comprising ethylene, ethane and methane; (d) recovering a stream comprising methane and a stream comprising ethane from the gas stream comprising ethylene, ethane and methane from step (c); (e) recycling at least a part of the stream comprising methane from step (d) to step (a); (f) converting ethane from the stream comprising ethane from step (d) to ethylene by oxidative dehydrogenation (ODH).

Abstract: The invention relates to a process for the production of an alkene by alkane oxidative dehydrogenation, comprising: (a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a catalyst comprising a mixed metal oxide, resulting in a stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne; (b) removing water from at least part of the stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne resulting from step (a), resulting in a stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne; (c) removing unconverted oxygen, carbon monoxide and optionally alkyne from at least part of the stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne resulting from s

Abstract: The invention concerns a process for oxidative dehydrogenation of ethane. In the process an ethane comprising stream is fed to a distillation column to remove propane. The purified ethane stream is subjected to oxidative dehydrogenation using a catalyst comprising Mo/V/Sb, or Mo/V/Nb and Te or Sb in the orthorhombic M1 crystalline phase. The reactor effluent comprises ethylene. The effluent is washed with water to remove acetic acid. The acetic acid is recovered from the aqueous stream by means of solvent extraction.

Abstract: The invention relates to a process for the production of ethylene from ethane, comprising: subjecting a stream comprising ethane to steam cracking conditions in a steam cracker unit which is part of a steam cracker configuration, resulting in a stream comprising unconverted ethane, ethylene and hydrogen; feeding a stream comprising unconverted ethane, ethylene and hydrogen to a separation unit which is part of the steam cracker configuration, and separating said stream in said separation unit into a stream comprising hydrogen and a stream comprising unconverted ethane and ethylene; feeding a stream comprising unconverted ethane and ethylene to a C2 separation unit which is part of the steam cracker configuration, and separating said stream in the C2 separation unit into a stream comprising ethylene and a stream comprising unconverted ethane; optionally recycling unconverted ethane from the stream comprising unconverted ethane coming from the C2 separation unit to the steam cracker unit; subjecting a stream co

Abstract: The invention relates to a process of the oxidative dehydrogenation of a C2-6 alkane, comprising subjecting a stream comprising methane and the C2-6 alkane, in which stream the volume ratio of methane to the C2-6 alkane is of from 0.005:1 to 100:1, to oxydehydrogenation conditions resulting in a stream comprising methane, a C2-6 alkene and optionally a C2-6 carboxylic acid.

Abstract: The invention concerns a process for oxidative dehydrogenation of ethane. In the process an ethane comprising stream is fed to a distillation column to remove propane. The purified ethane stream is subjected to oxidative dehydrogenation using a catalyst comprising Mo/V/Sb, or Mo/V/Nb and Te or Sb in the orthorhombic M1 crystalline phase. The reactor effluent comprises ethylene. The effluent is washed with water to remove acetic acid. The acetic acid is recovered from the aqueous stream by means of solvent extraction.

Abstract: A process for the oxidative coupling of methane to one or more C2+ hydrocarbons which includes subjecting a gas stream comprising methane, ethylene, optionally ethane and optionally nitrogen, resulting from subjecting methane and oxygen or air to methane oxidative coupling conditions, to two consecutive sorption steps which comprise contacting said gas stream comprising methane, ethylene, optionally ethane and optionally nitrogen with a selective sorption agent, resulting in sorption of part of said gas stream, comprising ethylene and optionally ethane, by the sorption agent and in a gas stream comprising the remainder of said gas stream, comprising methane, optionally ethane and optionally nitrogen, which latter gas stream is subjected to a second sorption step resulting in a further separation, finally resulting in a gas stream comprising methane, wherein each sorption step is followed by a desorption step which comprises desorbing the sorbed components originating from the gas stream in question.

Abstract: The invention relates to a process of the oxidative dehydrogenation of a C2-6 alkane, comprising subjecting a stream comprising methane and the C2-6 alkane, in which stream the volume ratio of methane to the C2-6 alkane is of from 0.005:1 to 100:1, to oxydehydrogenation conditions resulting in a stream comprising methane, a C2-6 alkene and optionally a C2-6 carboxylic acid.

Abstract: The invention relates to a process for the oxidative dehydrogenation of ethane to ethylene which comprises subjecting a gas stream comprising one or more light components, ethane and ethylene, resulting from subjecting ethane and oxygen to ethane oxidative dehydrogenation conditions, to two consecutive sorption steps which comprise contacting said gas stream comprising one or more light components, ethane and ethylene with a selective sorption agent, resulting in sorption of part of said gas stream, comprising ethylene and ethane, by the sorption agent and in a gas stream comprising the remainder of said gas stream, comprising one or more light components and ethane, which latter gas stream is subjected to a second sorption step resulting in a further separation, finally resulting in a gas stream comprising ethane which is optionally recycled to the ethane oxidative dehydrogenation (reaction) step, wherein each sorption step is followed by a desorption step which comprises desorbing the sorbed components orig

Abstract: The invention relates to a process for the oxidative dehydrogenation of ethane to ethylene, comprising a reaction step which comprises subjecting a gas stream comprising ethane and air to ethane oxidative dehydrogenation conditions resulting in a gas stream comprising nitrogen, ethane and ethylene; a sorption step which comprises contacting the gas stream comprising nitrogen, ethane and ethylene resulting from the reaction step with a sorption agent which has an affinity for nitrogen which is lower than that for ethane which in turn is lower than that for ethylene, resulting in sorption of ethylene and optionally ethane by the sorption agent and in a gas stream comprising nitrogen and optionally ethane; and a desorption step which comprises desorbing sorbed ethylene and optionally ethane resulting in a gas stream comprising ethylene and optionally ethane.