L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Air Liquide Global E&c Solutions Germany Gmbh

Antonio Coscia

Dieter Ulber

Julien Cances

Nathanael Hassler

Lukas Spies

Daniel Gary

Jean Gallarda

Holger Schlichting

Ulrich Wolf

Frederic Camy-Peyret

Sven Pohl

Jan Cobbaut

Jacques Segret

Katja Bartels

Dirck Simons

Tobias Kaiser

Ingo Gammel

Michael De Pauw

Patrice Levee

Fabrice Mathey

Udo Zolnowski

Antoine Hsu

Frederic Camy-Perret

Hans-Werner Scholz

The invention relates to a device for controlling the temperature of a process gas and a heat exchanger having such a control device. The control device has an outer housing with an inflow and outflow chamber. Cooled process gas can flow into the inflow chamber, while temperature-controlled process gas can flow out of the control device via the outflow chamber. An inner housing, which is fluidically connected to a hot gas line, extends from the inflow chamber through an element that mechanically separates the chambers into the outflow chamber. An axially movable piston, through which flow can take place, is arranged within the inner housing. The inner housing and the piston have openings which allow fluidic connections to the hot gas line, the inflow chamber and the outflow chamber.

Control device for controlling the temperature of a process gas and heat exchanger having a control device

The invention relates to a reactor, in particular a reactor for purifying offgases. The reactor includes a plurality of housing openings which open into a housing shaft, wherein the housing shafts are fitted with catalyst units. The reactor includes a sealing housing per housing shaft which allows replacement of the catalyst units in the course of ongoing operation of the reactor by way of a suitable arrangement of sealing elements and covering elements without there being any air exchange between an external environment of the reactor and the respective housing shaft.

Reactor with catalyst unit replaceable in the course of operation and process for replacing a catalyst unit

An elevated flare system in a synthesis gas production plant for thermal disposal of offgases having at least two different contents of carbon monoxide arising in synthesis gas production and/or synthesis gas treatment.

Elevated flare system for burning two types of gas

A reformer furnace having a reaction space formed with reaction tubes, a firing space fitted with burners and a flue gas channel in fluid connection with the firing space. The burners are arranged at a first end face of the reformer furnace and produce flames oriented towards a second end face to fire the reaction tubes. The flue gas channel has a transition region and a withdrawal region, wherein the flue gas channel is connected to the second end face of the firing space via the transition region and the transition region of the flue gas channel has a reduced channel diameter compared to the withdrawal region of the flue gas channel. The transition region has a constriction relative to the withdrawal region which results in a hydraulic decoupling between the firing space and the withdrawal region of the flue gas channel.

Reformer furnace for performing an endothermic process

The invention relates to a reformer furnace for catalytic reforming of a carbon-containing input material with steam. The reformer furnace has a steel construction which serves as a framework for a refractory lining and for the fastening of burners, reformer tubes and supply and discharge lines. The burners and reformer tubes are arranged in rows, parallel to one another and in alternating fashion. The steel construction includes a plurality of main carrier units, wherein each main carrier unit has at least two vertically extending supports and a horizontally extending main carrier which connects the supports. This type of steel construction makes it possible to achieve uniform spacing of the reformer tubes and burners over the entire reformer furnace. This results in advantages in terms of the maximum operating temperature of the reformer tubes, thereby extending their service life.

Reformer furnace

A reformer tube for producing synthesis gas by steam reforming of hydrocarbon-containing input gases is proposed where

Corrosion-protected reformer tube with internal heat exchange

Moulded insulation bodies, processes for the production thereof and use thereof consisting essentially of ceramic material comprising SiOfibers and AlOfibers which has been produced using AlOsol as a binder and kilned at a temperature of above 800&#xb0; C. for insulation of the ends of cracking tubes of a tubular reactor for performing a steam reforming process for generating synthesis gas which project out of the reactor heating space.

Moulded insulation bodies

A steam reformer, comprising a combustion chamber, catalyst tubes arranged in several rows, feed conduits for the educt gas, which extend below the bottom of the combustion chamber, burners for heating the catalyst tubes which are installed in the bottom of the combustion chamber and are directed vertically upwards into the combustion chamber, feed conduits extending below the bottom of the combustion chamber, each for supplying the air and the fuel gas to the burners, openings installed in the ceiling of the combustion chamber for discharging the burner waste gas, and channels extending above the ceiling of the combustion chamber for discharging the burner waste gas.

Steam reformer for producing synthesis gas

A steam reformer, with a combustion chamber, catalyst tubes arranged in several rows, with burners for heating the catalyst tubes, with feed conduits each for supplying the catalyst tubes with educt gas and the burners with air and fuel gas, with collecting conduits for discharging the product gas, with channels for discharging the burner waste gases from the combustion chamber, wherein the ceilings of the channels each are formed by the bottom or the ceiling of the combustion chamber, and wherein the channels for discharging the burner waste gases are designed such that the flow velocity of the burner waste gases is constant along the entire length of the channels, as seen vertically to the catalyst tubes.

Reformer for producing synthesis gas having improved burner waste gas flow

A system of product gas collecting conduits for a steam reformer, containing a plurality of reaction tubes within a reformer housing, for the production of synthesis gas, comprising: a) a product gas collecting conduit arranged outside the reformer housing of the steam reformer, b) several port tubes arranged along the length of the conduit for connecting one reaction tube each to the product gas collecting conduit, c) at least one windshield for the protection of the product gas collecting conduit against wind and draft.

System of product gas collection conduits for a steam reformer

An exhaust system for a steam reformer comprises at least one longitudinal collecting tube, wherein along the longitudinal axis of the longitudinal collecting tube ports for connection to catalyst tubes are provided, which in the connected condition are aligned parallel to each other and vertically to the longitudinal collecting tube, a transverse collector which is connected to the at least one longitudinal collecting tube and has a longitudinal axis which extends vertically to the at least one longitudinal collecting tube and vertically to the catalyst tubes, wherein the longitudinal collecting tube is formed as hot exhaust system and the transverse collector is formed as cold exhaust system. The transverse collector is arranged on a side of the longitudinal collecting tube facing away from the ports centrally to the longitudinal collecting tube.

Exhaust system for a steam reformer and bearing therefor

The invention relates to a method for decreasing the spread of the tube temperatures between tubes in a process involving the heating of at least one fluid in a furnace that comprises at least one radiation chamber with radiant walls, at least one essentially vertical row of tubes inside of which circulate the at least one fluid to be heated, and being equipped with burners that heat the tubes, where the method comprises the steps of: determining, for each of the tubes the skin temperature of the tube, selecting the 50% tubes having the lowest temperatures determined, the process being stopped, realizing on each tube selected an operation that decreases the flow of the fluid distributed to said tube while keeping the total flow rate of the fluid unchanged.

Method to homogenize the tube temperatures between tubes during processes involving heating of gas flowing in the tubes

A reformer tube for producing synthesis gas by steam reforming of hydrocarbon-containing feed gases, preferably natural gas, includes one or more helically coiled heat exchanger tubes which are arranged within a catalyst bed of a reforming catalyst and are helically coiled over part of their length located within the catalyst bed and are otherwise straight are present, where the straight proportion of the heat exchanger tubes and/or the helix pitch of the helically coiled part alters within the catalyst bed and matching to requirements of the pressure drop, the heat exchange properties, and the corrosion resistance.

Growing community of inventors

Hadamar, Germany

Antonio Coscia