PATENT CLAIM ANALYSIS

Application Number: 15780718
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["562", "515000"]

Abstract:
It is disclosed a process to produce a bio-product starting from a ligno-cellulosic feedstock, comprising a pre-hydrolysis step of the ligno-cellulosic feedstock in one or more pre-hydrolysis vessels to produce a liquid pre-hydrolyzate comprising water and water soluble hemicellulose, followed by a multi-step hydrolysis of the water soluble hemicellulose. The hydrolysis steps are conducted in separated vessel. The liquid pre-hydrolyzate is subjected to a partial hydrolysis step in a first hydrolysis vessel, to produce a first hydrolyzate. A portion of the first hydrolyzate, comprising remnant water soluble hemicellulose, is recirculated in at least one pre-hydrolysis vessel and subjected to a second hydrolysis step. Another portion of the first hydrolyzate comprising monomeric sugars is removed and converted to the bio-product, preferably after a refining hydrolysis step. The process also produces a hemicellulose-depleted feedstock which is preferably treated to produce a cellulosic pulp. The bio-product comprises any chemical from the groups of polyols, diols, alcohols, and carboxylic acids, or lactic acid or the group consisting of ethylene glycol, propylene glycol, or a mixture thereof.

Claim (Index 18):
The process of  claim 17 , wherein the conversion of the water soluble monomeric sugars to the bio-product comprises the steps of:\n a. Hydrogenating the water soluble monomeric sugars, by contacting at least a portion of the water soluble monomeric sugars with a hydrogenation catalyst in the presence of Hydrogen, at a hydrogenation pressure in the range of 30 bar to 150 bar and at a hydrogenation temperature in the range of 50\u00b0 C. to 200\u00b0 C., and for a hydrogenation time sufficient to produce a hydrogenated mixture comprising water and at least a sugar alcohol; b. Conducting hydrogenolysis of at least a portion of the hydrogenated mixture, by contacting the at least a portion of the hydrogenated mixture with a hydrogenolysis catalyst in the presence of OH \u2212  ions and Hydrogen, at a hydrogenolysis pressure in the range of 40 bar to 170 bar, at a hydrogenolysis temperature and for a hydrogenolysis time sufficient to produce a hydrogenolysis mixture comprising the bio-product, and c. Recovering the bio-product.

Metadata:
- Claim Count in Document: 71.0
- Percentile: 94.0
- Lexical Diversity: 2.27381
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14368572', '15032640', '15177385', '14946887', '14373284']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.680911355173719
- 35 USC 102 Novelty (BERT): 0.5271309108683521
- Combined Prediction Score: 0.6655333107431823
- Mean Citation Score: 276.18693999999994
- Max Citation Score: 312.4387200000001
- Similarity Product: 231.96643999225623

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

Dataset: test