Biomass Conversion to LPG and BTX via Catalytic Decantation
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Solution Overview
Problem
Current methods for producing liquefied petroleum gas (LPG) from biomass require high operating temperatures and complex separation processes, leading to low product yields and increased capital and operation costs.
Innovation Solution
A low-temperature and low-pressure process using a catalytic material, such as aluminosilicate zeolite, to convert a platform chemical mixture from abundant non-food biomass into LPG and aromatic hydrocarbons like benzene, toluene, and xylenes, with a one-step method that separates the products from unreacted chemicals through decantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If catalytic processes are used at high temperature (>700°C) and pressure (up to 20 bar) to convert synthesis gas to LPG, then LPG production is achieved, but capital and operation costs increase due to multiple separation steps required
Solution Approach 1:
The patent extracts and removes the problematic high-temperature catalytic conversion step and replaces it with a direct biochemical pathway using engineered microorganisms that convert biomass directly to LPG components, eliminating the need for complex downstream separation processes
Solution Approach 2:
The patent introduces engineered microorganisms as a biological intermediary that directly converts biomass to LPG components, replacing the traditional synthesis gas intermediate and subsequent catalytic conversion process, thereby simplifying the overall process flow
2Productivity
If high operating temperatures are used to produce bio-LPG and bioaromatics from platform chemical mixture, then conversion is achieved, but product yield remains low and separation processes become complex
Solution Approach 1:
The patent fundamentally changes the operating temperature parameter from high temperature (>700°C) to mild temperature conditions by using biochemical conversion pathways in engineered microorganisms, which operate at ambient or near-ambient temperatures, thereby increasing product yield and simplifying separation
Solution Approach 2:
The patent replaces the mechanical/thermal catalytic system with a biochemical system using engineered microorganisms, substituting high-temperature physical-chemical processes with biological metabolism pathways that occur at lower temperatures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This process enhances energy efficiency, reduces greenhouse gas emissions, and increases the yield of bio-LPG and bioaromatics, making the production of sustainable fuels more viable and cost-effective.
Implementation Method 1
introducing the platform chemical mixture to a catalytic material to produce a product stream comprising a low-C hydrocarbon fuel
Implementation Method 2
separating the BTX in the liquid product stream from unreacted platform chemicals via a decanting process
Data Source
AI summary
Methods for deriving a low-C hydrocarbon fuel from a platform chemical mixture are provided by introducing the platform chemical mixture to a catalytic material to produce a product stream comprising the low-C hydrocarbon fuel, and separating the low-C hydrocarbon fuel in the product stream from any remaining platform chemicals. Methods for producing aromatic hydrocarbons benzene, toluene, and xylenes from a platform chemical mixture are also provided by introducing a catalytic material to the platform chemical mixture to produce a immiscible liquid product stream comprising BTX, and separating the BTX in the liquid product stream from unreacted platform chemicals via a decanting process.