Lurgi Ag

Air Liquide Global E&c Solutions Germany Gmbh

Other

Lurgi Gmbh

Harald Koempel

Martin Rothaemel

Gerhard Birke

Hermann Bach

Waldemar Liebner

Walter Boll

Veronika Gronemann

Henning Buchold

Bernd Ahlers

Sven Pohl

Ulrich Wagner

Theis Ohlhaver

Peter Trabold

Andreas Ochs

Sandra Jensen

Herrmann Bach

A process for producing a product containing C3H6 and C2H4 includes simultaneous conversion of MeOH and EtOH in an adiabatic sequentially operated reactor containing a plurality of reaction stages. Each of the plurality of reaction stages of the reactor is provided with a fixed bed of a form-selective catalyst. A gaseous feed stream including MeOH, DME and H2O is charged to at least a first of the reaction stages of the reactor with a temperature in a range of 300 to 600&#xb0; C. at a pressure in a range of 0.1 to 20 bar[a]. EtOH is fed into at least, one of the reaction stages of the reactor.

[object Object]

For producing synthetic fuels, an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, is converted to olefins on a catalyst in a first process stage, and this olefin mixture then is divided in a separating means into a stream rich in C-Chydrocarbons and a stream rich in Chydrocarbons. The stream rich in Chydrocarbons is divided into a stream rich in Cand Chydrocarbons and a stream rich in Chydrocarbons, wherein the stream rich in Cand Chydrocarbons is at least partly subjected to an etherification with methanol. The ethers thus obtained are admixed to the gasoline product stream.

Method and apparatus for producing synthetic fuels

A process produces dimethyl ether (DME) from methanol (MeOH). The process includes charging a feed mixture consisting of raw MeOH and a process-internally obtained return flow substantially consisting of unconverted MeOH and reaction water to an MeOH column. The feed mixture is evaporated in the MeOH column to form a first distillate substantially consisting of vaporous MeOH. The first distillate is supplied to a reactor and the MeOH is converted to DME by splitting off water in the reactor so as to form a reaction mixture. The reaction mixture is withdrawn from the reactor, charged to a mixture column and separated into a bottom product substantially consisting of water and a second distillate substantially consisting of DME and MeOH. The second distillate is separated in a DME column into a third distillate substantially consisting of DME, a bottom product consisting essentially of water-poor MeOH, and uncondensable gases discharged overhead. The bottom product is either supplied to a top of the MeOH column or mixed with another bottom product withdrawn from a forerun column.

Method and device for producing dimethyl ether from methanol

In a process for the preparation of C- to C-olefins, a feed stream comprising oxygenates and steam is passed through at least one fixed-bed zone comprising zeolite catalyst, where the oxygenates are converted catalytically into olefins with high selectivity for lower olefins, and the reaction mixture leaving the fixed-bed zone is separated into a first product stream comprising C- to C-olefins and inert gas components, at least one second product stream comprising C-olefins, and a third product stream consisting of aqueous phase. In order to improve the yield of lower olefins, the aim is to regulate the temperature of the catalytic reaction in accordance with a target temperature value in the range from 440 to 520&#xb0; C. specified for the reaction mixture exiting the fixed-bed zone by means of a supplementary stream consisting of olefins and inert gas components fed into the feed stream.

Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase () containing hydrocarbons and oxygenates is charged to a first column (), a light fraction is separated as top product () by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction () and a gaseous mixture of hydrocarbons and oxygenates () is charged to a second column (), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent () is supplied to the upper part of the second column (), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product () and a hydrocarbon product (), which is free from oxygenates leaves the top of the column (). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.

Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds

Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture () through conversion by a catalyst () to an olefin and paraffin-containing second reaction mixture () where the second reaction mixture () is flowed through a separation system (), in which one at least one low olefin-containing first product stream () and at least one paraffin-enriched fraction () is extracted and where the remaining product stream () is at least partially recirculated to the catalyst ().

Method and device for producing lower olefins from oxygenates

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Neu-Isenburg, Germany

Harald Koempel