Abstract:
A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.
Abstract:
An apparatus includes: an electrolyte membrane; a cathode catalyst layer provided to one main surface of the electrolyte membrane; an anode catalyst layer provided to the other main surface of the electrolyte membrane; a cathode gas diffusion layer provided on a main surface of the cathode catalyst layer not facing the electrolyte membrane; a separator including a recess through which cathode gas flows; an anode gas diffusion layer provided on a main surface of the anode catalyst layer not facing the electrolyte membrane; a voltage applicator applying a voltage between the cathode catalyst layer and the anode catalyst layer; and a fastener fastening a laminated body. The cathode gas diffusion layer is accommodated in the recess, projects from the recess in a thickness direction before fastening of the laminated body, and includes an elastic member between side surfaces of the cathode gas diffusion layer and of the recess.
Abstract:
A system for producing an oxygenate, comprising: a desulfurization apparatus for contacting a raw material gas comprising hydrogen and carbon monoxide with a desulfurizing agent comprising copper; and a synthesis apparatus for contacting the raw material gas treated by the desulfurizing apparatus with an oxygenate-synthesis catalyst comprising rhodium.
Abstract:
A method is provided for running up/starting up an electrolysis device (10), which device includes a reactor container (3) which is arranged downstream of an electrolyzer (1) and in which oxygen reacts with hydrogen into water, in order to reduce an oxygen share in a hydrogen gas flow coming from the electrolyzer (1). The electrolysis device (10) is operated with a predefined operating pressure. Upon running up/starting up the electrolyzer (1), the hydrogen gas flow coming from the electrolyzer (1) is led past the reactor container (3) via a bypass conduit (11).
Abstract:
A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.
Abstract:
A hydrogen purifier includes: a CO remover configured to reduce carbon monoxide in a hydrogen-containing gas through an oxidation reaction, the hydrogen-containing gas containing ammonia and carbon monoxide; and an ammonia remover provided upstream from the CO remover, the ammonia remover being configured to cause a reaction between ammonia in the hydrogen-containing gas and oxygen by using a catalyst to decompose the ammonia.
Abstract:
A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.
Abstract:
Organic sulfur compounds contained in refinery off gas streams having either high ort low concentrations of olefins are converted to hydrogen sulfides which can be then be removed using conventional amine treating systems. The process uses a catalytic reactor with or without a hydrotreater depending on the olefin concentration of the off gas stream. The catalytic reactor operates in a hydrogenation mode or an oxidation mode to convert a majority of organic sulfur compounds into hydrogen sulfides.
Abstract:
The invention relates to a process for purifying synthesis gas, comprising at least one stage for separating the crude synthesis gas to be treated into at least two effluents, namely a first part and a complementary part, in which the said first part is subjected to a carbon monoxide conversion stage with steam and the said complementary part is subjected to a COS and HCN catalytic hydrolysis stage, the two gas flows, namely the first part and complementary part, are then each treated separately in two stages intended to remove acid gases such as CO2 and H2S, by washing with aqueous solutions of specific amines, before a recombination stage of the two treated effluents.
Abstract translation:本发明涉及一种纯化合成气的方法,包括至少一个阶段,用于将待处理的粗合成气分离成至少两个流出物,即第一部分和互补部分,其中所述第一部分经受 一氧化碳转化阶段用蒸汽和所述互补部分进行COS和HCN催化水解阶段,然后将两个气体流,即第一部分和互补部分分开处理两个阶段,分两个阶段,用于除去酸性气体,例如 通过在两种处理过的流出物的重组阶段之前用特定胺的水溶液洗涤,将CO 2和H 2 S.
Abstract:
A method for synthesizing ammonia for agricultural fertilizers employs water (H2O) as the source of hydrogen (H2) in ammonia (NH3) synthesis, and gathers carbon monoxide (CO) as a limiting reagent for combining in a WGS (Water-Gas-Shift) reaction for producing hydrogen. The WGS reaction employs CO with the water to produce Carbon Dioxide (CO2) and H2, consuming undesirable CO from other industrial applications. A by-product of the process includes generating 1.5 mole of CO2 for each mole of ammonia synthesized. An intermediate step consumes 3 moles of hydrogen for each mole of Nitrogen (N2). The use of methane gas is avoided as the process employs CO and the WGS reaction as an exclusive source of H2 without introducing methane (CH4). A downstream synthesis of ammonia can be done through a fuel cell to produce electricity for the ammonia synthesis for further sustainability.