PATENT CLAIM ANALYSIS

Application Number: 16091309
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["518", "712000"]

Abstract:
A method for producing methanol allows the temperature of the catalyst layer to fall within an appropriate temperature range, reduces energy used, and achieves higher carbon yield. In a synthesis loop including at least two synthesis steps and two separation steps, a first mixed gas is obtained by mixing the final unreacted gas with a fraction of the make-up gas, methanol is synthesized from the first mixed gas after preheating, a first unreacted gas is separated from the obtained first reaction mixture, a final mixed gas is obtained by finally mixing the unreacted gas and a fraction of the make-up gas, the final mixed gas after preheating is further increased in pressure and then methanol is synthesized, a final unreacted gas is separated from the obtained final reaction mixture, and the reaction temperature of the catalyst layer is controlled by the indirect heat exchange with pressurized boiling water.

Claim (Index 12):
An apparatus for producing methanol comprising: reactors for synthesizing methanol from a synthesis gas comprising hydrogen, carbon monoxide and carbon dioxide; and separators for separating an unreacted gas from a reaction mixture obtained in one of the reactors,\n the apparatus comprising a synthesis loop comprising at least two of the reactors and at least two of the separators, wherein the synthesis loop comprises: a first mixing unit for obtaining a first mixed gas by mixing a residual gas, obtained by removing a purge gas from a final unreacted gas separated from a final reaction mixture in a final separator subsequent to a final reactor, with 10 to 90 mol % of a make-up gas comprising hydrogen, carbon monoxide and carbon dioxide; a first reactor for synthesizing methanol from the first mixed gas; a first separator for separating a first unreacted gas from a first reaction mixture obtained in the first reactor; a final mixing unit for obtaining a final mixed gas by finally mixing the unreacted gas and at least a fraction of 10 to 90 mol % of the make-up gas; the final reactor for synthesizing methanol from the final mixed gas; and the final separator for separating the final unreacted gas from the final reaction mixture obtained in the final reactor, the synthesis loop also comprises: a first preheater for preheating the first mixed gas; a final preheater for preheating the final mixed gas; and a circulator for increasing the pressure of the final mixed gas preheated by the final preheater before the preheated final mixed gas is supplied to the final reactor, and at least in the final reactor, a reaction temperature of a catalyst layer is controlled by indirect heat exchange with pressurized boiling water.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 2.30435
- Patent Class: 518.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15519003', '12653149', '11572119', '15502134', '14081403']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6653211084126653
- 35 USC 102 Novelty (BERT): 0.5795819657496657
- Combined Prediction Score: 0.6567471941463654
- Mean Citation Score: 271.808922
- Max Citation Score: 397.50092
- Similarity Product: 341.034552749312

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test