A process for production of ammonia includes: providing a reaction stream including carbon monoxide and hydrogen; passing the reaction stream and steam over a water gas shift catalyst in a catalytic shift reactor, forming a shifted gas mixture depleted in carbon monoxide and enriched in hydrogen; passing the shifted gas mixture with an oxygen-containing gas over a selective oxidation catalyst at ≧175° C., forming a selectively oxidized gas stream with a portion of the carbon monoxide converted to carbon dioxide; removing some of the carbon dioxide from the selectively oxidized gas stream in a carbon dioxide removal unit; passing the carbon dioxide depleted stream over a methanation catalyst in a methanator to form a methanated gas stream, optionally adjusting its hydrogen:nitrogen molar ratio to form an ammonia synthesis gas; and passing the ammonia synthesis gas over an ammonia synthesis catalyst in an ammonia converter to form ammonia.

Processes and systems for converting a hydrocarbon-containing feed. The feed and heated particles can be contacted within a pyrolysis zone to effect pyrolysis of at least a portion of the feed to produce a pyrolysis zone effluent and a first gaseous stream rich in olefins and a first particle stream rich in the particles can be obtained therefrom. At least a portion of the first particle stream, an oxidant, and steam can be fed into a gasification zone and contacted therein to effect gasification of at least a portion of coke disposed on the surface of the particles to produce a gasification zone effluent. A second gaseous stream rich in a synthesis gas and a second particle stream rich in heated and regenerated particles can be obtained from the gasification zone effluent. At least a portion of the second particle stream can be fed into the pyrolysis zone.

A method for revamping an ammonia-urea plant wherein: the ammonia section is modernized to produce an extra amount of low pressure steam; condensation stage of the high-pressure urea synthesis loop is modified to use part of the condensation heat of the urea stripper vapours to produce medium-pressure steam, said medium-pressure steam is fed to one or more steam users of the urea section, particularly for carbamate decomposition, the input of low-pressure steam to the urea section is balanced by importing the extra low-pressure steam produced in the ammonia section.

There are provided systems and methods for using fuel-rich partial oxidation to produce an end product from waste gases, such as flare gas. In an embodiment, the system and method use air-breathing piston engines and turbine engines for the fuel-rich partial oxidation of the flare gas to form synthesis gas, and reactors to convert the synthesis gas into the end product. In an embodiment the end product is methanol.

An ammonia derivative production plant includes: an electrolyzer for electrolyzing water; an ammonia synthesis system for synthesizing ammonia from hydrogen produced by the electrolyzer and nitrogen; a carbon dioxide generation system for producing carbon dioxide; and an ammonia derivative synthesis system for synthesizing an ammonia derivative from ammonia synthesized by the ammonia synthesis system and carbon dioxide produced by the carbon dioxide generation system. Oxygen produced by the electrolyzer is consumed to produce carbon dioxide by the carbon dioxide generation system.

A urea production process comprises a step of synthesis of urea by reaction of ammonia and carbon dioxide, where at least part of the carbon dioxide for the urea reaction synthesis is produced in an oxy-combustion process; the oxy-combustion process is specifically a flameless oxy-combustion process.

Ammonia, methanol, Fischer Tropsch products, and derivatives thereof are made by using hydrogen and oxygen supplied from an electrolyzer that is at least partially powered by renewable power, resulting in green process and systems that produce green products disclosed herein. A process using biomass and renewable energy includes producing an unshifted syngas from biomass and oxygen in a gasification unit, introducing water into an electrolyzer to produce an oxygen product and a hydrogen product, and introducing the oxygen product to the gasification unit. The electrolyzer is powered by renewable energy, and the oxygen product supplies at least a portion of the oxygen to the gasification unit.

A process for the co-production of low carbon methanol and ammonia, including providing renewable power to an electrolysis unit, thereby producing at least a green oxygen stream and a green hydrogen stream. Providing renewable power to a nitrogen generation unit, thereby producing a green nitrogen stream. Providing a hydrocarbon stream and some amount of steam to an oxygen based reformer, along with at least part of the green oxygen stream, thereby producing a raw syngas stream. Combining the green hydrogen stream with the oxygen-based reformer feed to adjust the composition of the raw syngas stream to be suitable for methanol synthesis. Introducing the raw syngas stream into either a conventional or once-through methanol synthesis reactor, thereby producing at least a low carbon methanol product (after purification) and an unreacted syngas stream.

Sequential and once-through (single pass) process for the co-production of methanol and ammonia and conversion of at least a part of ammonia to urea by reaction of the ammonia with carbon dioxide collected from a primary reformer flue gas together with carbon dioxide separated from reformed gas in a carbon dioxide removal stage.

What is proposed is a process and a plant for parallel production of methanol and ammonia by heterogeneously catalyzed reaction of hydrogen and carbon oxides on the one hand and hydrogen and nitrogen on the other hand. This includes producing a raw synthesis gas stream and dividing it into two portions. A first raw synthesis gas substream is used as input for a methanol synthesis to obtain raw methanol and a methanol synthesis purge stream. A second raw synthesis gas substream is subjected to a CO conversion, a carbon dioxide separation and a liquid nitrogen scrubbing and then sent to an ammonia synthesis. According to the invention at least a portion of the methanol synthesis purge stream is sent to the ammonia synthesis and at least one substream obtained from the second raw synthesis gas substream is passed to the methanol synthesis.