Abstract:
What is disclosed is a biorefining process and system including the steps of extracting, hydrolyzing, and/or digesting a lignocellulosic biomass feedstock, or a component thereof, with a liquid or vapor solution comprising reactant sulfur dioxide or a derivative thereof, to generate cellulose-rich solids and an intermediate liquid stream; combusting or gasifying a sulfur-containing fuel to generate heat and an exhaust gas stream comprising produced sulfur dioxide; contacting the exhaust gas stream with the intermediate liquid stream to dissolve the produced sulfur dioxide into the intermediate liquid stream; and then recycling the intermediate liquid stream to reuse the produced sulfur dioxide as the reactant sulfur dioxide. The sulfur- containing fuel may be sulfonated lignin generated by reaction of lignin (derived from the feedstock) with the reactant sulfur dioxide, resulting in a closed loop for sulfur dioxide in the biorefmery.
Abstract:
Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful intermediates and products, such as energy, fuels, foods or materials.. Systems, methods and equipment are described for upgrading process streams using electrodialysis or electrodialysis reversal. ] Many potential lignocellulosic feedstocks are available today, including agricultural residues, woody biomass, municipal waste, oilseeds/cakes and seaweed, to name a few.
Abstract:
Materials, such as biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. Conveying systems, such as flowing gas conveying systems and such as closed-loop flowing gas conveying systems are described. Many potential lignocellulosic feedstocks are available today, including agricultural residues, woody biomass, municipal waste, oilseeds/cakes and seaweed, to name a few.
Abstract:
Biomass ( e.g ., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful intermediates and products, such as energy, fuels, foods or materials. For example, equipment, systems and methods are described that can be used to treat feedstock materials, such as cellulosic and/or lignocellulosic materials, in a vault in which hazardous gases are removed, destroyed and/or converted. The treatments are efficient and can reduce the recalcitrance of the lignocellulosic material so that it is easier to produce an intermediate or product, e.g ., sugars, alcohols, sugar alcohols and energy, from the lignocellulosic material.
Abstract:
An oxyfiring system and method for capturing carbon dioxide in a combustion process is disclosed. The oxyfiring system comprises (a) an oxidation reactor for oxidizing a reduced metal oxide; (b) a decomposition reactor wherein oxidized metal oxide sorbents are reduced with oxygen being released and a flue gas with an oxygen enriched carbon dioxide stream is produced; (c) a fuel combustion reactor for combusting a primary fuel and the oxygen enriched carbon dioxide stream into a primary flue gas; and (d) separation apparatus for separating a portion of the primary flue gas so that a carbon dioxide enriched stream can be sent to the decomposition reactor. Steam may be added to assist in controlling the partial pressure of oxygen during decomposition of the metal oxide and a condenser may be used to remove water from the oxygen enriched flue gas.
Abstract:
The invention relates to an integrated process for the production of 5-hydroxymethyl furfural (HMF), K 2 SO 4 , levulinic acid and formic acid from κ-carrageenan, the latter being obtained from fresh Kappaphycus alvarezii seaweed biomass after expelling the juice. Mg(HSO 4 ) 2 was used in HMF synthesis, with co-production of galactose. The aqueous stream after HMF extraction was treated with the seaweed juice which process facilitated recovery of K 2 SO 4 in pure form. The galactose may be utilised for synthesis of levulinic acid and formic acid before or after K 2 SO 4 recovery or, alternatively, utilised for other purposes. Catalysts required in the synthetic reactions are generated in the process itself while the process energy required is met out of additional supplies of the seaweed biomass which is subjected to combustion/gasification.
Abstract translation:本发明涉及生产5-羟甲基糠醛(HMF),K 2 SO 4,乙酰丙酸和甲酰胺的整合方法 来自κ-角叉菜胶的酸,后者在排出果汁后从新鲜的Kappaphycus alvarezii海藻生物质获得。 在HMF合成中使用Mg(HSO 4)2 2与半乳糖共同产生。 用海藻汁处理HMF萃取后的水流,该过程有利于以纯形式回收K 2 SO 4。 半乳糖可用于在K 2 SO 4回收之前或之后合成乙酰丙酸和甲酸,或者可用于其它目的。 合成反应中所需的催化剂在工艺本身中产生,而所需的工艺能量通过经受燃烧/气化的海藻生物质的额外供应来满足。 p>
Abstract:
A self-sustainable integrated solid and liquid waste management, treatment, and energy generation system, said system comprises: (a) feed preparation module adapted to receive waste feed and further adapted to segregate said received waste feed, said feed preparation module further comprises: (i) Waste Oil Treatment Process Module; (ii) Sewage and Liquid Organic Effluent Treatment Module; (iii) Solid Organic Waste Treatment Module; (b) energy production module adapted to receive prepared feed from said feed preparation module and further adapted to generate biogas, electrical power, and fertiliser, said energy production module further comprises: (i)Biomethanation and Anaerobic Digestion Module; (ii) Biogas Cleanup Module; (iii) Pilot Fuel / Duel Fuel Biogas Engine Generator Module; (c) auxiliary processing module adapted to receive hot exhaust gas, organic digestate, hot condensate water in order to provide energy to vapour absorption chiller and to obtain cooled exhaust gas rich in carbon-dioxide which will provide energy for green house, organic fertiliser, cold storage propelling refrigerant, processed water and residue feeds, said auxiliary processing module further comprises: (i) Biogas Engine Exhaust Gas Waste Heat Recovery Module; (ii) Organic Fertiliser Module; (iii) Vapour Absorption Chiller and Cold Storage Module; and (iv) Reverse Osmosis Waste Water Treatment Module.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren und Anlagen zur Erzeugung von treibhausgasreduziertem Biogas, zu dessen Aufbereitung zu treibhausgasreduziertem BioMethan und regenerativem Kohlenstoffdioxid (CO 2 ), zur Vermischung von treibhausgasreduziertem BioMethan und Erdgas (CNG) zu einem treibhausgasreduzierten Mischgas und zur Verwendung des treibhausgasreduzierten BioMethans und/oder des treibhausgasreduzierten Mischgases als treibhausgasreduzierte Energieträger, insbesondere als treibhausgasreduzierter Kraftstoff im Verkehr.
Abstract:
The present invention relates to a process and a system for generating energy from biomass / organic wastes. A process for generating a product gas from biomass comprises of pyrolyzing the biomass in a pyrolyser by contacting the biomass with hot heat carriers to obtain pyrolysis gas and char; passing the pyrolysis gas to a reformer containing a reactant to obtain a product gas; and firing a part of the product gas coming out of the reformer back to the heater tubes of the reformer. Firing a part of the product gas through the fired heater tubes of the reformer provides the heat for sustaining the reaction between the pyrolysis gas and the reactant to form the product gas.
Abstract:
A method, apparatus, and system for a solar-driven chemical reactor are disclosed, including a solar thermal receiver aligned to absorb concentrated solar energy. Some embodiments include a solar driven chemical reactor that has multiple reactor tubes. Some embodiments include one of 1) one or more apertures open to an atmosphere of the Earth or 2) one or more windows, to pass the concentrated solar energy into the solar thermal receiver. This energy impinges on the multiple reactor tubes and cavity walls of the receiver and transfer energy by solar radiation absorption and heat radiation, convection, and conduction. In this way, the energy causes reacting particles to drive the endothermic chemical reaction flowing in the reactor tubes. The design of the multiple reactor tubes and solar thermal receiver can be adapted per a solar flux profile to take advantage of variations in the concentrations of solar flux in the profile.