摘要:
A diesel fuel composition is disclosed that requires a reduced amount of petroleum-based diesel and provides lower level of emissions, while maintaining the desired performances of the petroleum-based diesel. The disclosed fuel composition comprises a petroleum-based diesel and at least about 5% by volume of levulinate ester, and may be substantially free of alkanolamides, alcohols, or combinations thereof. When desired, the fuel composition may include biodiesel and other additives. The disclosed fuel composition may be formulated such that its performances are in compliance with the ASTM D975 standard.
摘要:
A process for producing levulinic acid and its esters from biomass is disclosed comprising: (i) feed preparation module characterized by subjecting biomass to a high-temperature refining treatment; (ii) hydrolysis reaction module that facilitates the hydrolysis of biomass to its respective sugars and their subsequent transformation to levulinic acid, formic acid, furfural, and char as well as facilitates the separation of lignin-based char by-product; (iii) product separation and recovery module utilizing a solvent extraction technique such as using furfural by-product as extracting solvent; and (iv) optionally, conversion of levulinic acid to levulinate ester. When desired, the disclosed process may be integrated into existing pulp mills.
摘要:
Waste lignocellulosic material, for example brown kraft grocery bag and corrugated paperboard, is treated in a multi-step process to produce a recycle brownstock pulp having a sufficiently low kappa number that it may be bleached according to conventional means such that its final optical and strength properties are comparable to that of virgin pulps bleached according to similar means; biological enzymes are used in conjunction with medium consistency pulping to separate fibers and loosen contaminants, such as wax and adhesives; low temperature soaking of waste lignocellulosic material in an alkaline peroxide liquid using long reaction times is used to minimize energy consumption, degrade contaminants, and to selectively remove lignin; loosened contaminants and poorly bonding lignocellulose debris are removed by screening and cleaning methods; high consistency peroxygen cooking is used to substantially delignify the pulp and to destroy contaminants in an energy efficient manner; liquid streams are treated and internally recycled to reuse chemicals and to eliminate environmental liquid discharge; organic solids are recovered and incinerated as fuel to provide heat energy to the process; spent sodium salts are recovered as sodium hydroxide and reused in the process as a delignification agent; the recycled pulp can be employed in the manufacture of brown paper and paperboard products, or can be bleached to provide a pulp for white paper or paperboard products.
摘要:
A product dispensing system including a dispenser having a front end longitudinally opposed from a rear end, the dispenser including a first side wall laterally opposed from a second side wall, a protuberance extending from the first side wall toward the second side wall, a container support deck positioned below the protuberance between the first and second side walls, the container support deck extending at least partially between the front and rear ends, and a lower support deck positioned below the container support deck, the lower support deck extending at least partially between the front and rear ends, and defining a product display area.
摘要:
A product dispensing system including a dispenser having a front end longitudinally opposed from a rear end, the dispenser including a container support deck extending at least partially between the front and rear ends, and a lower support deck positioned below the container support deck, the lower support deck defining a product display area, a container positioned on the container support deck, the container defining an internal volume and including an interference member extending into the internal volume, and a number of products received in the internal volume and arranged in at least a first row and a second row, the second row being positioned above the first row, wherein the interference member is positioned to restrict longitudinal movement at least one product in the second row.
摘要:
A product dispensing system including a dispenser having a front end longitudinally opposed from a rear end, the dispenser including a container support deck extending at least partially between the front and rear ends, and a lower support deck positioned below the container support deck, the lower support deck defining a product display area, a container positioned on the container support deck, the container defining an internal volume and including an interference member extending into the internal volume, and a number of products received in the internal volume and arranged in at least a first row and a second row, the second row being positioned above the first row, wherein the interference member is positioned to restrict longitudinal movement at least one product in the second row.
摘要:
A product dispensing system including a dispenser having a front end longitudinally opposed from a rear end, the dispenser including a container support deck extending at least partially between the front end and the rear end, the container support deck being moveable between a first configuration and a second configuration, and a lower support deck positioned below the container support deck, the lower support deck extending at least partially between the front end and the rear end, and defining a product display area.