Abstract: The invention relates to a process for preparing methanol, in which a synthesis gas comprising carbon oxides and hydrogen is provided, which is passed at elevated pressure and elevated temperature through a catalyst bed of a methanol synthesis catalyst for conversion of the synthesis gas to methanol to obtain a product stream comprising crude methanol and unreacted synthesis gas. Unreacted synthesis gas is recycled to the catalyst bed inlet and combined with the synthesis gas, resulting in a mixed synthesis gas. The mixed synthesis gas at the catalyst bed inlet has a stoichiometry number SN of ?0.80, the catalyst bed in the conversion of the mixed synthesis gas to methanol has a maximum catalyst bed temperature of ?280° C., and the mixed synthesis gas at the catalyst bed inlet has a carbon monoxide concentration of ?20% by volume.

Abstract: An apparatus for producing hydrogen using a retrofitted steam methane reformer (SMR) via ammonia cracking is provided. The apparatus can include: means for providing a pressurized and gaseous ammonia stream to a plurality of reactor tubes; a furnace having the plurality of reactor tubes and a plurality of burners, wherein the furnace is configured to catalytically crack the ammonia within the reactor tubes to produce a crude process gas and a flue gas; a plurality of waste heat recovery sections; and a pressure swing adsorption (PSA) unit disposed downstream the furnace, wherein the PSA unit is configured to receive the crude process gas, or a gas derived therefrom, and produce a hydrogen product stream and a PSA offgas.

Abstract: A method for retrofitting an existing steam methane reformer (SMR) for ammonia cracking is provided. In this embodiment, the existing SMR can include a pre-reformer, a desulfurization unit, a furnace, waste heat recovery sections, a water gas shift reactor, a pressure swing adsorption (PSA) unit, wherein the furnace has a plurality of SMR tubes and a plurality of burners. In certain embodiments, the method can include the steps of: providing the existing SMR; taking the desulfurization unit offline such that no fluid flows through the desulfurization during operation; taking the pre-reformer offline such that no fluid flows through the pre-reformer during operation; and adding means for providing a gaseous ammonia stream to the SMR tubes.

Abstract: The invention relates to a process for preparing methanol, in which a synthesis gas comprising carbon oxides and hydrogen is provided, which is passed at elevated pressure and elevated temperature through a catalyst bed of a methanol synthesis catalyst for conversion of the synthesis gas to methanol to obtain a product stream comprising crude methanol and unreacted synthesis gas. Unreacted synthesis gas is recycled to the catalyst bed inlet and combined with the synthesis gas, resulting in a mixed synthesis gas. The mixed synthesis gas at the catalyst bed inlet has a stoichiometry number SN of ?0.80, the catalyst bed in the conversion of the mixed synthesis gas to methanol has a maximum catalyst bed temperature of ?280° C., and the mixed synthesis gas at the catalyst bed inlet has a carbon monoxide concentration of ?20% by volume.

Abstract: The present disclosure provides a system and method for recycling intermediate product streams of at least gasoline from the MTP plant to the steam cracker plant for processing with the feedstock of the steam cracker plant to generate a higher percentage of ethylene and propylene. The steam cracker feedstock can be ethane.

Abstract: The present disclosure provides a system and method for recycling intermediate product streams of at least gasoline from the MTP plant to the steam cracker plant for processing with the feedstock of the steam cracker plant to generate a higher percentage of ethylene and propylene. The steam cracker feedstock can be ethane.

Abstract: Catalytic process for the preparation of methanol, with a plurality of serial synthesis stages, in which the severity of the reaction conditions, on the basis of the reaction temperature and/or the concentration of carbon monoxide in the synthesis gas, decreases from the first to the last reaction stage in flow direction, the first reaction stage having a first catalyst of low activity but high long-term stability, and the last reaction stage having a second catalyst of high activity but low long-term stability.

Abstract: The invention relates to a method for the coproduction of methanol and ammonia from natural gas involving the following steps: 1. Natural gas (flow 1) , steam and oxygen are mixed with one another in a reactor A during which the natural gas is partially oxidized and additionally reformed with the aid of catalysts; 2. The gas mixture removed from reactor A is split into a flow (flow 2) for synthesizing methanol in a unit E and into another flow (flow 3) for producing hydrogen; 3. The carbon monoxide present in flow (flow 3) for producing hydrogen is converted into carbon dioxide inside reactor B with the aid of catalysts and intermediate cooling stages; 4. Remaining impurities such as methane, traces of carbon monoxide and argon are washed out in a cleaning unit D, and hydrogen (flows 6, 8) is fed to the methanol synthesis in unit E and to the ammonia synthesis in unit F; 5.

Abstract: The invention relates to a heat-recovery boiler (3) consisting of a tube bundle heat exchanger (7) which is incorporated into a pressure vessel (2) downstream of a gasification device. Displacement bodies (9) are inserted into pipes which are flowed around by hot process gas. According to said invention, in order to avoid corrosion problems like metal dusting, said displacement bodies (9) are made of graphite.

Abstract: The invention relates to a method for the coproduction of methanol and ammonia having the following steps: 1. Natural gas (stream 1), steam and oxygen are mixed together in a reactor A, wherein the natural gas is partially oxidized and further reformed with the aid of catalysts, 2. The gas mixture taken from reactor A is divided into stream (stream 2) for the methanol synthesis in a unit E and another stream (stream 3) for hydrogen production, 3. The carbon monoxide present in the stream (stream 3) for the hydrogen production is converted into carbon dioxide with aid from catalysts and intermediate cooling stages, 4. Remaining impurities such as methane, traces of carbon monoxide and argon are washed out in a purification unit D, and hydrogen (streams 6, 8) is fed to the methanol synthesis in the unit E and the ammonia synthesis in a unit F, 5.

Abstract: A process for the production of methanol from liquid or gaseous starting materials, in which the emission of carbon dioxide is reduced or completely eliminated.

Abstract: The invention relates to a heat-recovery boiler (3) consisting of a tube bundle heat exchanger (7) which is incorporated into a pressure vessel (2) downstream of a gasification device. Displacement bodies (9) are inserted into pipes which are flowed around by hot process gas. According to said invention, in order to avoid corrosion problems like metal dusting, said displacement bodies (9) are made of graphite.

Abstract: A process for the production of methanol from liquid or gaseous starting materials, in which the emission of carbon dioxide is reduced or completely eliminated.