Exxonmobil Research and Engineering Company

Glen Edward Phillips

Michael Siskin

Simon Robert Kelemen

Walter Weissman

Charles John Mart

Nicholas Charles Nahas

Leo D Brown

Richard Edwards Walter

Kuangnan Qian

Ramesh R Hemrajani

Christopher P Eppig

Dean C Draemel

Te-Hung Chen

Biomass is used as a co-feed for a heavy petroleum oil coking process to improve the operation of the coking process and to utilize biomaterial for the production of transportation fuels. The coking process may be a delayed coking process or a fluidized bed coking process and in each case, the presence of the biomass will decrease the coke drying time so reducing coke handling problems in the unit besides forming a superior coke product. In the case of a fluidized bed coking process using a gasifier for the coke, the addition of an alkali metal salt improves the operation of the gasifier.

Biomass conversion process

A biomass pyrolysis oil is used as a co-feed for a heavy petroleum oil coking process to improve the operation of the coking process and to utilize biomaterial for the production of transportation fuels. The coking process may be a delayed coking process or a fluidized bed coking process and in each case, the presence of the biomass pyrolysis oil will decrease the coke drying time while reducing coke handling problems in the unit besides forming a superior coke product. In the case of a fluidized bed coking process using a gasifier for the coke, the addition of an alkali metal salt improves the operation of the gasifier.

Biomass oil conversion process

A lignocellulosic biomass material is converted into precursors for liquid hydrocarbon transportation fuels by contacting the biomass material with water and carbon monoxide at elevated temperature, typically from 280 to 350&#xb0; C., an elevated pressure, typically a total system pressure of 12 to 30 MPa and a CO partial pressure from 5 to 10 MPa and a weight ratio of water:biomass material from 0.5:1 to 5.0:1, to dissolve the biomass material into the reaction mixture and depolymerize, deoxygenate and hydrogenate the lignocellulose biomass material, so converting the biomass material into liquid transportation fuel precursors.

Biomass conversion using carbon monoxide and water

A pyrolysis oil derived from a lignocellulosic biomass material is converted into precursors for liquid hydrocarbon transportation fuels by contacting the oil with water and carbon monoxide at elevated temperature, typically from 280 to 350&#xb0; C., an elevated pressure, typically a total system pressure of 12 to 30 MPa and a CO partial pressure from 5 to 10 MPa and a weight ratio of water:biomass oil from 0.5:1 to 5.0:1, to dissolve the oil into the reaction mixture and depolymerize, deoxygenate and hydrogenate the oil, so converting it into liquid transportation fuel precursors.

Biomass oil conversion using carbon monoxide and water

Biomass pyrolysis oil is converted into precursors for hydrocarbon transportation fuels by contacting the oil with liquid superheated water or supercritical water to depolymerize and deoxygenate the components of the oil and form the transportation fuel precursors. Temperatures above 200&#xb0; C. and preferably above 300&#xb0; C. are preferred with supercritical water at temperatures above 374&#xb0; C. and pressures above 22 MPA providing the capability for fast conversion rates.

The invention relates to a thermal conversion process for continuously producing hydrocarbon vapor and continuously removing a free-flowing coke. The coke, such as a shot coke, can be withdrawn continuously via, e.g., a staged lock hopper system.

Continuous coking process

A method for coke removal in delayed coker drums is provided. The method comprises the steps of draining from the drum of substantially free-flowing coke, performing a vibration signature analysis on the drum to identify whether and where any coke remains attached to the interior wall of the drum after the draining step, and cutting the coke from the areas identified by the signature analysis step.

Optimized coke cutting method for decoking substantially free-flowing coke in delayed cokers

This invention relates to a process for reducing fouling of equipment used in fluidized bed thermal conversion processes such as fluid coking and FLEXICOKING&#x2122;. Acoustic energy is used to acoustically agglomerate fine mists created during the coking process. The agglomerated mists are then carried along with the circulating coke instead of depositing on coking equipment.

Acoustic agglomeration to reduce fouling in thermal conversion processes

The invention relates to a method for improving yield in petroleum streams derived from coking processes. In a preferred embodiment, the invention relates to a method for regenerating filters employed to remove particulate matter from coker gas oil to improve coker gas oil yield and yield of upgraded coker gas oil products.

Process for increasing yield in coking processes

A method for removing or reducing coke deposits in a refinery reactor unit utilizing a reactant gas, preferably steam, and catalyst.

Mitigation and gasification of coke deposits

A method for mitigating the condensation of liquid hydrocarbons and subsequent coke deposition in refinery reactor units by dew point suppression.

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Goldvein, VA, United States of America

Glen Edward Phillips