Thyssenkrupp Industrial Solutions Ag

Thyssen Krupp Ag

Uhde Gmbh

Thyssenkrupp Uhde Gmbh

Joachim Johanning

Rainer Maurer

Bärbel Kolbe

Klaus Nölker

Evgeni Gorval

Hartmut Hederer

Christoph Roosen

Bernd Keil

Yevgeny Makhynya

Erich Szonn

Reinhard Heun

Dennis Lippmann

Reinhard Michel

Silke Wodberg

Detlev Claes

Frank Dziobek

Ivo Mueller

Peter Renvoice

Michele Marigo

Günter Völker

Lutz Oliver Porz

Julian Herbst

Ivo Müller

Daniela Dostal

Gunter Volker

Simon Schulte BEERBÜHL

Frank Schultmann

A process can be used to treat a synthesis gas stream comprising steam reforming firstly in a primary reformer and subsequently in a secondary reformer. Crude synthesis gas exiting the secondary reformer may be cooled in a steam generator and then further cooled in a steam superheater. The crude synthesis gas stream after exiting the secondary reformer may be split into at least two gas substreams, of which only a first gas substream is fed to the steam generator. A second gas substream may be supplied to the steam superheater, bypassing the steam generator. Only the first gas substream, after flowing through the steam generator, may be subjected to a CO conversion reaction in a first CO conversion reactor before the first gas substream is supplied to the steam superheater.

Method for treating a synthesis gas stream

A synthesis device may include a pressure vessel with an inlet and an outlet for fluid, a catalyst bed that is disposed within the pressure vessel, a plate heat exchanger that is disposed in a flow path of fluid between the inlet of the pressure vessel and the catalyst bed such that fluid flowing into the catalyst bed is heated by fluid flowing out of the catalyst bed. The plate heat exchanger may be disposed outside a reactor volume occupied by the catalyst bed in the pressure vessel. The catalyst bed may be one of a plurality of catalyst beds disposed axially over one another in the pressure vessel.

Synthesis device and method for producing a product

A process for preparing ammonia or ammonia and urea in a facility may involve compressing a crude synthesis gas stream that includes hydrogen, nitrogen, and carbon dioxide, washing a substream of the crude synthesis gas with ammonia to form a purified synthesis gas stream depleted of carbon dioxide and a condensate, synthesizing ammonia from the purified synthesis gas stream, and synthesizing urea from the condensate to form an aqueous urea composition. In the preparation of ammonia and urea, the crude synthesis gas stream may be, after being compressed, divided into a first synthesis gas substream and a second synthesis gas substream. In some instances, only the first synthesis gas substream is scrubbed with liquid ammonia.

Method for producing ammonia and urea in a common facility

Processes for separating carbon dioxide from CO2-containing gases and an apparatus for providing carbon dioxide for the synthesis of urea.

Method for the provision of carbon dioxide for the synthesis of urea

The invention relates to a loading device having N loading heads offset by N/360&#xb0;, wherein N is the number 3 or an integer multiple thereof, wherein each of the N loading heads has a connecting device for a hose arranged at the upper end, through which hose the catalyst material can be delivered from above, wherein each of the N loading heads has a deflecting cone with the tip pointing upwards beneath the connecting device and joined to the connecting device, a vertical holder is mounted on the underside of said deflecting cone, at least two circular deflector funnel elements are mounted on the vertical holder by means of horizontal braces, the deflector funnel elements open more narrowly at the top than at the bottom, gaps are provided between the deflector funnel elements and the lower deflector funnel elements have a larger diameter than the deflector funnel elements above them.

Loading device

A method of starting up an autothermal reactor for the production of synthesis gas by reforming of hydrocarbon-containing feed gases in a reaction chamber in which oxidation reactions and reforming reactions are carried out, by feeding a hydrocarbon containing feed gas, steam and an oxidant.

Method of starting up autothermal reforming reactors

Combined removal of both ammonia from an ammonia-containing waste gas and nitrogen oxides from a nitrogen oxide-containing waste gas in a combined ammonia/urea synthesis plant is accomplished by mixing the gases and employing one or both of selective non-catalytic reduction at a temperature of 850&#xb0; C. to 1100&#xb0; C. or selective catalytic reduction at a temperature of 150&#xb0; C. to 550&#xb0; C., in which the ammonia and the nitrogen oxides react with one another to give nitrogen and water, the ammonia-containing waste gas derived from a low-pressure and/or atmospheric absorber of the urea synthesis plant, and the nitrogen oxide-containing waste gas derived from a flue gas duct of a primary reformer of the ammonia synthesis plant, both the ammonia and the nitrogen oxides of the mixed waste gas flows being depleted simultaneously during the same process step.

Combined waste gas treatment of waste gas streams containing ammonia and nitrogen oxides in industrial plants

By means of a method and a system for heating and partial oxidation of not separately pre-heated, pre-reformed steam/natural gas mixture for an NHsynthesis gas, whereby energy is supplied to the gas stream (raw synthesis gas), in the direction of flow, after a primary reformer, a solution is to be created, with which soot formation is to be prevented as much as possible, whereby the possibility of the addition of variable amounts, for example of Nand Oor mixtures thereof, is also supposed to be possible. This is achieved, according to the method, in that the energy is supplied directly after the primary reformer, by way of at least one pore burner positioned in the gas discharge line of the primary reformer.

Method for heating and partial oxidation of a steam/natural gas mixture after a primary reformer

The invention relates to a method for the production of nitric acid having a concentration of between 50 and 76%, from ammonia and gas containing oxygen, under pressure, according to a single pressure method or dual pressure method. The expansion of the residual gas takes place in at least two stages in a work efficient manner. At least one device for heating the previously expanded gas to a temperature of more than 450&#xb0; is disposed between every other expansion stage, using waste heat from the production process of nitric acid.

Method for the production of nitric acid

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Oberhausen, Germany

Joachim Johanning