Abstract: The present disclosure discloses a method for configuring a block chain-based local consensus, including implementing an initialization of a plurality of nodes and creating a local consensus instance for a set of nodes selected from the plurality of nodes. The present disclosure also discloses a corresponding computer-readable storage medium and an apparatus for configuring a block chain-based local consensus. The apparatus including an initialization module configured to implement an initialization of a plurality of nodes; and a local consensus configuration module configured to create a local consensus instance for a set of nodes selected from the plurality of nodes.

Abstract: The present disclosure discloses a method for configuring a block chain-based local consensus, including implementing an initialization of a plurality of nodes and creating a local consensus instance for a set of nodes selected from the plurality of nodes. The present disclosure also discloses a corresponding computer-readable storage medium and an apparatus for configuring a block chain-based local consensus. The apparatus including an initialization module configured to implement an initialization of a plurality of nodes; and a local consensus configuration module configured to create a local consensus instance for a set of nodes selected from the plurality of nodes.

Abstract: An embodiment of the present application discloses a method and a device for processing smart contracts. The processing method includes: executing the smart contract to be invoked based on a class file corresponding to the smart contract. And the class file is pre-compiled based on program logic of the smart contract to be invoked. By implementing the technical scheme of embodiments of the present application, the smart contract can be directly developed based on a Java language, and no additional compiler or interpreter are required. In addition, all functions of the Java language are basically retained, and the technical scheme of the present application is easy to be accessed and used.

Abstract: The present invention relate to a methane synthesis catalyst preparation method, comprising a preparation step for a catalytic body and a prereduction step. The prereduction step comprises: calcining the catalytic body to form a nickel aluminate spinel-containing catalyst precursor; and prereducing the catalyst precursor to acquire the methane synthesis catalyst. The catalyst prepared in the preparation method can be used in high-temperature and high liquid-to-gas ratio conditions, shows performance stability, and obviates the need for a further step of high-temperature reduction during vehicle operation. Also provided is the methane synthesis catalyst precursor. The catalyst precursor contains nickel aluminate spinel.

Abstract: The present invention relate to a methane synthesis catalyst preparation method, comprising a preparation step for a catalytic body and a prereduction step. The prereduction step comprises: calcining the catalytic body to form a nickel aluminate spinel-containing catalyst precursor; and prereducing the catalyst precursor to acquire the methane synthesis catalyst. The catalyst prepared in the preparation method can be used in high-temperature and high liquid-to-gas ratio conditions, shows performance stability, and obviates the need for a further step of high-temperature reduction during vehicle operation. Also provided is the methane synthesis catalyst precursor. The catalyst precursor contains nickel aluminate spinel.