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131.

In alkylation processes olefins react with

A.	normal paraffins	B.	isoparaffins
C.	naphthenes	D.	aromatics

132.

The catalyst used in alkylation process is

A.	Ni	B.	Al2O3
C.	HF	D.	Pt

133.

HF alkylation units operate at

A.	4?C	B.	180?C
C.	480?C	D.	37?C

134.

In the Edeleanu process solvent used is

A.	furfural	B.	hydrogen peroxide
C.	liquid sulphur dioxide	D.	phenol

135.

Edeleanu process is used

A.	to reduce aromatic content of kerosine	B.	to reduce paraffinic content of kerosine
C.	to reduce naphthenic content of kerosine	D.	to increase aromatic content of kerosine

136.

The frequent fluctuation in crude distillation tower top pressure can be caused due to

A.	entry of water alongwith top reflux to the tower	B.	fluctuations in the tower bottom level
C.	fluctuation in the feed rate and feed temperature to the column	D.	all of the above

137.

Clay tratment is generally employed for

A.	the removal of olefins and diolefins from cracked gases/liquid streams	B.	the improvement of colour and odour
C.	the oxidation stability of lube base stocks	D.	all of the above

138.

In the UDEX process for the extraction of armatics from reformed naphtha the solvent used is

A.	liquid sulphur dioxide	B.	a mixture of diethylene glycol and water
C.	a mixture of methyl ethyl ketone and benzene	D.	iron

139.

For the removal of asphaltic constituents from vacuum residue the most suitable solvent is

A.	liquid sulphur dioxide	B.	vanadium pentaoxide
C.	propane	D.	triethylene glycol

140.

In propane deasphalting process the extractor pressure and temperature are

A.	40 kgf/cm2 g and 130?C	B.	1 kgf/cm2 and 30?C
C.	175 kgf/cm2 g and 180?C	D.	120 mm Hg and 30?C