US PATENT SUBCLASS 208 / 145
.~.~.~.~ With added source of hydrogen (includes hydrogen donor)

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
142  DF  .~ Hydrogenation (saturation) {1}
143  DF  .~.~ Catalytic {1}
144  DF  .~.~.~ Feed of specific composition {1}
145.~.~.~.~ With added source of hydrogen (includes hydrogen donor)

DEFINITION

Classification: 208/145

(under subclass 144) Processes in which an added material which under the conditions of the reaction supplies the hydrogen necessary for hydrogenation is employed.

(1) Note. Such hydrogen supplying materials are commonly known as "hydrogen donors". Example thereof are naphthenes, asphalts, and tars.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56, for hydrogen donor diluent cyclic processes.