摘要:
To provide a sulfur trioxide decomposition catalyst, particularly, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process.A sulfur trioxide decomposition catalyst comprising a composite oxide of vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process comprising decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above, is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process, is provided.
摘要:
To provide a sulfur trioxide decomposition catalyst, particularly, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process.A sulfur trioxide decomposition catalyst comprising a composite oxide of vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process comprising decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above, is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process, is provided.
摘要:
A sulfur trioxide decomposition catalyst, in particular, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process is disclosed. A sulfur trioxide decomposition catalyst that includes a composite oxide of tungsten, vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process that includes decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process is provided.
摘要:
A sulfur trioxide decomposition catalyst, in particular, a sulfur trioxide decomposition catalyst capable of lowering the temperature required when producing hydrogen by an S—I cycle process is disclosed. A sulfur trioxide decomposition catalyst that includes a composite oxide of tungsten, vanadium and at least one metal selected from the group consisting of transition metal and rare earth elements is provided. Also, a sulfur dioxide production process that includes decomposing sulfur trioxide into sulfur dioxide and oxygen by using the sulfur trioxide decomposition catalyst above is provided. Furthermore, a hydrogen production process, wherein the reaction of decomposing sulfur trioxide into sulfur dioxide and oxygen by an S—I cycle process is performed by the above-described sulfur dioxide production process is provided.
摘要:
According to the present invention there is provided an ammonia synthesis method using solar thermal energy, whereby it is possible to minimize the load of collecting solar thermal energy, and especially high-temperature solar thermal energy. The method of the present invention for synthesis of ammonia using solar thermal energy includes the following steps (a) to (c): (a) conducting ammonia synthesis reaction in which nitrogen and hydrogen are reacted to synthesize ammonia, (b) heating a heating medium by solar thermal energy and the reaction heat energy of the ammonia synthesis reaction, and (c) conducting at least part of the water splitting reaction in which water is split into hydrogen and oxygen, using the thermal energy of the heated heating medium, to obtain the hydrogen.
摘要:
A method for producing hydrogen from water is provided. The hydrogen production process includes splitting water into hydrogen and oxygen, wherein the process includes decomposing sulfuric acid into water, sulfur dioxide and oxygen through a reaction of formula (X1) by using solar thermal energy, wherein at least a part of the elementary reaction of formula (X1-1) is performed using thermal solar energy, and at least a part of the elementary reaction of formula (X1-2) is performed using additional thermal energy other than solar thermal energy, and wherein the heating temperature by the additional thermal energy is higher by 10° C. or more than the heating temperature by the solar thermal energy, and at least a part of the additional thermal energy is generated in a reaction vessel: (X1) H2SO4→H2O+SO2+1/2O2, (X1−1) H2SO4→H2O+SO3, and (X1−2) SO3→SO2+1/2O2
摘要翻译:提供了一种从水中生产氢的方法。 氢气生产过程包括将水分解成氢气和氧气,其中该方法包括通过使用太阳能热能将式(X 1)的反应将硫酸分解成水,二氧化硫和氧,其中至少一部分基本反应为 使用热太阳能进行式(X1-1),并且使用除了太阳能热能之外的附加热能进行式(X1-2)的至少一部分元素反应,并且其中通过附加热量的加热温度 能量通过太阳能热能高于加热温度10℃或更高,并且在反应容器中产生至少一部分附加热能:(X1)H 2 SO 4→H 2 O + SO 2 + 1 / 2O 2 ,(X1-1)H2SO4-> H2O + SO3,(X1-2)SO3-> SO2 + 1 / 2O2
摘要:
The invention relates to a method for hydrolyzing the plant fiber material to produce and separate a saccharide including glucose. The method includes a hydrolysis process of hydrolyzing cellulose contained in the plant fiber material and producing glucose in a first organic solvent having a cluster acid catalyst dissolved therein.
摘要:
A pretreatment method for saccharification of plant fiber materials includes: immersing the plant fiber material in a solution that contains an organic solvent, in which a cluster acid is dissolved, prior to saccharifying cellulose contained in the plant fiber material; and distilling off the organic solvent from the immersed plant fiber material to obtain a pretreated mixture that contains the cluster acid and the pretreated plant fiber material.
摘要:
The invention relates to a method for hydrolyzing a plant fiber material and producing and separating a saccharide including glucose. The method of the invention includes a hydrolysis process of using a cluster acid catalyst in a pseudo-molten state to hydrolyze cellulose contained in the plant fiber material and produce glucose. In the hydrolysis process, the cluster acid catalyst and a first amount of the plant fiber material that increases a viscosity of the cluster acid catalyst in a pseudo-molten state when added to the cluster acid catalyst in a pseudo-molten state are heated and mixed, and a second amount of the plant fiber material is then further added when the decrease in viscosity of the heated mixture occurs.
摘要:
A compound oxide manufacturing method includes: dispersing micelles, in each of which an aqueous phase is formed, in an oil phase; producing primary particles of a precursor of compound oxide in the aqueous phases in the micelles; synthesizing secondary particles by causing the primary particles to aggregate; and causing the secondary particles to aggregate by breaking the dispersion state of the micelles, or by causing the micelles to coalesce. In particular, polarization is produced in each of the micelles with the use of a cation having an ionic radius larger than that of a metal ion at least when the secondary particles are synthesized in the micelles.